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Difference between revisions of "v0.34:Metal"

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==Alloys==
 
==Alloys==
There are only eleven pure metals in Dwarf Fortress (plus a twelfth [[Adamantine|special metal]]).  Many of these can be mixed together to create '''alloys''' of one type or another, of which there are another fourteen.  In some cases making alloys will result in an overall increase in value, or the resultant alloy will be more powerful when used to forge weapons or armor, though many alloys result in no overall increase in utility or [[Wealth|created wealth]]. (These increases in value can be compared in the "Difference" column of the below table.)
+
There are eleven pure metals in Dwarf Fortress (plus a twelfth [[Adamantine|special metal]]).  Many of these can be mixed together to create '''alloys''' of one type or another, of which there are another fourteen.  In some cases making alloys will result in an overall increase in value, or the resultant alloy will be more powerful when used to forge weapons or armor, though many alloys result in no overall increase in utility or [[Wealth|created wealth]]. (These increases in value can be compared in the "Difference" column of the below table.)
  
The main use of these alloys is to allow you to stretch any useful metals you have too few of or to create items with distinct colors (for instance, [[rose gold]] is [[Color scheme|magenta]]) for furniture, color-coding rooms or levers, or artistic constructions (including [[floor]] mosaics). In some cases ([[bronze]], for example) an additional benefit is reduced fuel consumption, as you can create multiple bars of some alloys directly from raw ores with only one [[smelter]] task, bypassing the need to first make bars of the pure metals (and thus using only one fuel unit to produce multiple bars).  The number of bars used to create an alloy always equals the number of bars produced: the number of bars input equals the number of bars of output.
+
There are many uses for alloys:
 +
* Increased performance for armor or weapons.
 +
* Increased value (particularly when a silver-bearing ore is substituted for silver)
 +
* Stretching your supply of scarce metals.
 +
* Creating items with distinct colors (for instance, [[rose gold]] is [[Color scheme|magenta]]) for furniture, color-coding rooms or levers, or artistic constructions (including [[floor]] mosaics).
 +
* Increasing [[thought|happiness]] or perceived [[room]] value for a dwarf who particularly likes a given alloy.
 +
* Decreased [[fuel]] consumption if making the alloy directly from ores (e.g. [[bronze]] requires only one smelter task to make 8 bars from 2 ores).
  
<!-- 40d article's section on maximizing value not copied over, as it doesn't seem so relevant in v0.31 and later with increased utility for some alloys and general increases in metal abundance -->
+
The number of bars used to create an alloy always equals the number of bars produced: the number of bars input equals the number of bars of output.  However, the number of bars produced from smelting ores is four times greater (X ores in = 4X bars out).
  
 
== List of metals ==
 
== List of metals ==
Line 15: Line 21:
 
===Pure Metals===
 
===Pure Metals===
  
{{v0.31 metal table head}}
+
{{v0.34 pure metal table head}}
  
{{v0.31 metal table row|name=Adamantine|color={{Tile|≡|3:1}}{{Tile|‼|3:3:1}}<span style="display:none">3:3:1</span>|source=[[Raw adamantine]]|notes=Can be used to forge anything except beds; <br/> Blades are 10x sharper than any other material|soliddensity=0.200|mp=25000|val=300|valinc=+50|impactyield=5.00|impactfracture=5.00|impactelasticity=0|shearyield=5000|shearfracture=5000|shearelasticity=0
+
{{v0.34 metal table row|name=Adamantine|color={{Tile|≡|3:1}}{{Tile|‼|3:3:1}}<span style="display:none">3:3:1</span>|source=[[Raw adamantine]]|notes=Cannot be smelted directly; must be [[Strand extractor|extracted]] first. <br/>Can be used to forge anything except beds; <br/> Blades are 10x sharper than any other material|soliddensity=0.200|mp=25000|val=300|valinc=+50|impactyield=5.00|impactfracture=5.00|impactelasticity=0|shearyield=5000|shearfracture=5000|shearelasticity=0
 
}}
 
}}
  
{{v0.31 metal table row|name=Aluminum|color={{Tile|≡|7:1}}{{Tile|‼|7:7:1}}<span style="display:none">7:7:1</span>|source=[[Native aluminum]]|notes=|soliddensity=2.70|mp=11188|val=40|valinc=+0|impactyield=1.08|impactfracture=1.08|impactelasticity=1421|shearyield=20|shearfracture=50|shearelasticity=77
+
{{v0.34 metal table row|name=Aluminum|color={{Tile|≡|7:1}}{{Tile|‼|7:7:1}}<span style="display:none">7:7:1</span>|source=[[Native aluminum]]|notes=|soliddensity=2.70|mp=11188|val=40|valinc=+0|impactyield=1.08|impactfracture=1.08|impactelasticity=1421|shearyield=20|shearfracture=50|shearelasticity=77
 
}}
 
}}
  
{{v0.31 metal table row|name=Bismuth|color={{Tile|≡|5:1}}{{Tile|‼|5:5:1}}<span style="display:none">5:5:1</span>|source=[[Bismuthinite]]|notes=Only useful for alloying into [[bismuth bronze]]|soliddensity=9.78|mp=10488|val=2|valinc=+1|impactyield=1.08|impactfracture=1.08|impactelasticity=3484|shearyield=30|shearfracture=50|shearelasticity=250
+
{{v0.34 metal table row|name=Bismuth|color={{Tile|≡|5:1}}{{Tile|‼|5:5:1}}<span style="display:none">5:5:1</span>|source=[[Bismuthinite]]|notes=Only useful for alloying into [[bismuth bronze]]|soliddensity=9.78|mp=10488|val=2|valinc=+1|impactyield=1.08|impactfracture=1.08|impactelasticity=3484|shearyield=30|shearfracture=50|shearelasticity=250
 
}}
 
}}
  
{{v0.31 metal table row|name=Copper|color={{Tile|≡|6:0}}{{Tile|‼|6:4:0}}<span style="display:none">6:4:0</span>|source=[[Native copper]], [[Malachite]], [[Tetrahedrite]]|notes=Can be used to forge all weapons, armor, ammunition, and picks|soliddensity=8.93|mp=11952|val=2|valinc=+0, +0, -1*|impactyield=1.08|impactfracture=1.08|impactelasticity=771|shearyield=70|shearfracture=220|shearelasticity=145
+
{{v0.34 metal table row|name=Copper|color={{Tile|≡|6:0}}{{Tile|‼|6:4:0}}<span style="display:none">6:4:0</span>|source=[[Native copper]], [[Malachite]], [[Tetrahedrite]]|notes=Can be used to forge all weapons, armor, ammunition, and picks|soliddensity=8.93|mp=11952|val=2|valinc=+0, +0, -1*|impactyield=1.08|impactfracture=1.08|impactelasticity=771|shearyield=70|shearfracture=220|shearelasticity=145
 
}}
 
}}
  
{{v0.31 metal table row|name=Gold|color={{Tile|≡|6:1}}{{Tile|‼|6:6:1}}<span style="display:none">6:6:1</span>|source=[[Native gold]]|notes=|soliddensity=19.32|mp=11915|val=30|valinc=+0|impactyield=1.08|impactfracture=1.08|impactelasticity=600|shearyield=50|shearfracture=100|shearelasticity=185
+
{{v0.34 metal table row|name=Gold|color={{Tile|≡|6:1}}{{Tile|‼|6:6:1}}<span style="display:none">6:6:1</span>|source=[[Native gold]]|notes=|soliddensity=19.32|mp=11915|val=30|valinc=+0|impactyield=1.08|impactfracture=1.08|impactelasticity=600|shearyield=50|shearfracture=100|shearelasticity=185
 
}}
 
}}
  
{{v0.31 metal table row|name=Iron|color={{Tile|≡|0:1}}{{Tile|‼|0:7:1}}<span style="display:none">0:7:1</span>|source=[[Hematite]], [[Limonite]], [[Magnetite]]|notes=Can be used to forge all weapons, armor, ammunition, picks, and [[anvil]]s|soliddensity=7.85|mp=12768|val=10|valinc=+2|impactyield=1.08|impactfracture=1.08|impactelasticity=635|shearyield=130|shearfracture=200|shearelasticity=159
+
{{v0.34 metal table row|name=Iron|color={{Tile|≡|0:1}}{{Tile|‼|0:7:1}}<span style="display:none">0:7:1</span>|source=[[Hematite]], [[Limonite]], [[Magnetite]]|notes=Can be used to forge all weapons, armor, ammunition, picks, and [[anvil]]s|soliddensity=7.85|mp=12768|val=10|valinc=+2|impactyield=1.08|impactfracture=1.08|impactelasticity=635|shearyield=130|shearfracture=200|shearelasticity=159
 
}}
 
}}
  
{{v0.31 metal table row|name=Lead|color={{Tile|≡|0:1}}{{Tile|‼|0:7:1}}<span style="display:none">0:7:1</span>|source=[[Galena]]|notes=|soliddensity=11.34|mp=10589|val=2|valinc=-3*|impactyield=1.08|impactfracture=1.08|impactelasticity=2348|shearyield=10|shearfracture=12|shearelasticity=179
+
{{v0.34 metal table row|name=Lead|color={{Tile|≡|0:1}}{{Tile|‼|0:7:1}}<span style="display:none">0:7:1</span>|source=[[Galena]]|notes=|soliddensity=11.34|mp=10589|val=2|valinc=-3*|impactyield=1.08|impactfracture=1.08|impactelasticity=2348|shearyield=10|shearfracture=12|shearelasticity=179
 
}}
 
}}
  
{{v0.31 metal table row|name=Nickel|color={{Tile|≡|7:0}}{{Tile|‼|7:3:0}}<span style="display:none">7:3:0</span>|source=[[Garnierite]]|notes=|soliddensity=8.80|mp=12619|val=2|valinc=+0|impactyield=1.08|impactfracture=1.08|impactelasticity=660|shearyield=20|shearfracture=160|shearelasticity=26
+
{{v0.34 metal table row|name=Nickel|color={{Tile|≡|7:0}}{{Tile|‼|7:3:0}}<span style="display:none">7:3:0</span>|source=[[Garnierite]]|notes=|soliddensity=8.80|mp=12619|val=2|valinc=+0|impactyield=1.08|impactfracture=1.08|impactelasticity=660|shearyield=20|shearfracture=160|shearelasticity=26
 
}}
 
}}
  
{{v0.31 metal table row|name=Platinum|color={{Tile|≡|7:1}}{{Tile|‼|7:7:1}}<span style="display:none">7:7:1</span>|source=[[Native platinum]]|notes=|soliddensity=21.40|mp=13182|val=40|valinc=+0|impactyield=1.08|impactfracture=1.08|impactelasticity=470|shearyield=100|shearfracture=200|shearelasticity=164
+
{{v0.34 metal table row|name=Platinum|color={{Tile|≡|7:1}}{{Tile|‼|7:7:1}}<span style="display:none">7:7:1</span>|source=[[Native platinum]]|notes=|soliddensity=21.40|mp=13182|val=40|valinc=+0|impactyield=1.08|impactfracture=1.08|impactelasticity=470|shearyield=100|shearfracture=200|shearelasticity=164
 
}}
 
}}
  
{{v0.31 metal table row|name=Silver|color={{Tile|≡|7:1}}{{Tile|‼|7:7:1}}<span style="display:none">7:7:1</span>|source=[[Native silver]], [[Horn silver]],<br />[[Galena]] (50%), [[Tetrahedrite]] (20%) |notes=Can be used to forge melee weapons and ammunition|soliddensity=10.49|mp=11731|val=10|valinc=+0, +0,<br />+5*, +7*|impactyield=1.08|impactfracture=1.08|impactelasticity=1080|shearyield=100|shearfracture=170|shearelasticity=333
+
{{v0.34 metal table row|name=Silver|color={{Tile|≡|7:1}}{{Tile|‼|7:7:1}}<span style="display:none">7:7:1</span>|source=[[Native silver]], [[Horn silver]],<br />[[Galena]] (50%), [[Tetrahedrite]] (20%) |notes=Can be used to forge melee weapons and ammunition|soliddensity=10.49|mp=11731|val=10|valinc=+0, +0,<br />+5*, +7*|impactyield=1.08|impactfracture=1.08|impactelasticity=1080|shearyield=100|shearfracture=170|shearelasticity=333
 
}}
 
}}
  
{{v0.31 metal table row|name=Tin|color={{Tile|≡|7:0}}{{Tile|‼|7:3:0}}<span style="display:none">7:3:0</span>|source=[[Cassiterite]]|notes=|soliddensity=7.28|mp=10417|val=2|valinc=+0|impactyield=1.08|impactfracture=1.08|impactelasticity=1862|shearyield=12|shearfracture=100|shearelasticity=66
+
{{v0.34 metal table row|name=Tin|color={{Tile|≡|7:0}}{{Tile|‼|7:3:0}}<span style="display:none">7:3:0</span>|source=[[Cassiterite]]|notes=|soliddensity=7.28|mp=10417|val=2|valinc=+0|impactyield=1.08|impactfracture=1.08|impactelasticity=1862|shearyield=12|shearfracture=100|shearelasticity=66
 
}}
 
}}
  
{{v0.31 metal table row|name=Zinc|color={{Tile|≡|7:0}}{{Tile|‼|7:3:0}}<span style="display:none">7:3:0</span>|source=[[Sphalerite]]|notes=|soliddensity=7.13|mp=10755|val=2|valinc=+0|impactyield=1.08|impactfracture=1.08|impactelasticity=1542|shearyield=50|shearfracture=150|shearelasticity=116
+
{{v0.34 metal table row|name=Zinc|color={{Tile|≡|7:0}}{{Tile|‼|7:3:0}}<span style="display:none">7:3:0</span>|source=[[Sphalerite]]|notes=|soliddensity=7.13|mp=10755|val=2|valinc=+0|impactyield=1.08|impactfracture=1.08|impactelasticity=1542|shearyield=50|shearfracture=150|shearelasticity=116
 
}}
 
}}
  
 
|}
 
|}
 +
''Legend:''
 +
:* '''Tile Color''' corresponds to how items made from that metal are displayed in game, foreground and background colors.
 +
:*'''Source Ore(s)''' indicates the specific ores that can provide a metal. If production of the metal is not guaranteed, a percent chance is indicated following the ore.
 +
:*'''Density''' is used to determine the different weight of finished objects.
 +
:*'''Melting point''' is used to determine if a material is [[magma-safe]] or not: magma is 12000°U.
 +
:*'''[[Material value]]''' is what the base value of an object made of this metal is multiplied by to determine its worth.
 +
:*'''Value difference''' indicates the difference in material value between the metal and the ore, separated with commas in cases where multiple ore values differ.
 +
::'''*''' - Values marked with an asterisk denote ores that can yield multiple metals. On average, the expected difference in value from smelting [[tetrahedrite]] is +1 and [[galena]] is +2.
  
 
===Alloys===
 
===Alloys===
 
''(Unless specified, ores of the ingredients may be used instead of bars for alloy reactions)''
 
''(Unless specified, ores of the ingredients may be used instead of bars for alloy reactions)''
{{v0.31 metal table head}}
+
{{v0.34 alloy metal table head}}
  
{{v0.31 metal table row|name=Billon|color={{Tile|≡|7:0}}{{Tile|‼|7:3:0}}<span style="display:none">7:3:0</span>|source=[[Silver]] + [[Copper]]|notes=Can be made with [[Tetrahedrite]] or [[Galena]] instead of [[Silver]] for a high value reaction. |soliddensity=8.93|val=6|valinc=+0|mp=11952|impactyield=1.08|impactfracture=1.08|impactelasticity=771|shearyield=70|shearfracture=220|shearelasticity=145
+
{{v0.34 metal table row|name=Billon|color={{Tile|≡|7:0}}{{Tile|‼|7:3:0}}<span style="display:none">7:3:0</span>|source=[[Silver]] + [[Copper]]|notes=Can be made with [[Tetrahedrite]] or [[Galena]] instead of [[Silver]] for increased value (Tetrahedrite + Tetrahedrite: +3, Copper ore + Tetrahedrite: +3.5, Copper ore + Galena: + 2.5, Tetrahedrite + Galena: + 2). |soliddensity=8.93|val=6|valinc=+0|mp=11952|impactyield=1.08|impactfracture=1.08|impactelasticity=771|shearyield=70|shearfracture=220|shearelasticity=145
 
}}
 
}}
  
{{v0.31 metal table row|name=Bismuth bronze|color={{Tile|≡|6:1}}{{Tile|‼|6:6:1}}<span style="display:none">6:6:1</span>|source=1 [[Tin]] + 2 [[Copper]] + 1 [[Bismuth]] '''!'''|notes=Can be used to forge all weapons, armor, ammunition, and picks|soliddensity=8.25|val=6|valinc=+4|mp=11868|impactyield=1.08|impactfracture=1.08|impactelasticity=600|shearyield=137|shearfracture=241|shearelasticity=200
+
{{v0.34 metal table row|name=Bismuth bronze|color={{Tile|≡|6:1}}{{Tile|‼|6:6:1}}<span style="display:none">6:6:1</span>|source=1 [[Tin]] + 2 [[Copper]] + 1 [[Bismuth]] '''!'''|notes=Can be used to forge all weapons, armor, ammunition, and picks|soliddensity=8.25|val=6|valinc=+4|mp=11868|impactyield=1.08|impactfracture=1.08|impactelasticity=600|shearyield=137|shearfracture=241|shearelasticity=200
 
}}
 
}}
  
{{v0.31 metal table row|name=Black bronze|color={{Tile|≡|5:0}}{{Tile|‼|5:6:0}}<span style="display:none">5:6:0</span>|source=2 [[Copper]] + 1 [[Silver]] + 1 [[Gold]] '''!'''|notes=Unique color|soliddensity=8.93|val=11|valinc=+0|mp=11952|impactyield=1.08|impactfracture=1.08|impactelasticity=771|shearyield=70|shearfracture=220|shearelasticity=145
+
{{v0.34 metal table row|name=Black bronze|color={{Tile|≡|5:0}}{{Tile|‼|5:6:0}}<span style="display:none">5:6:0</span>|source=2 [[Copper]] + 1 [[Silver]] + 1 [[Gold]] '''!'''|notes=Unique color|soliddensity=8.93|val=11|valinc=+0|mp=11952|impactyield=1.08|impactfracture=1.08|impactelasticity=771|shearyield=70|shearfracture=220|shearelasticity=145
 
}}
 
}}
  
{{v0.31 metal table row|name=Brass|color={{Tile|≡|6:1}}{{Tile|‼|6:6:1}}<span style="display:none">6:6:1</span>|source=[[Zinc]] + [[Copper]]|notes=|soliddensity=8.55|val=7|valinc=+5|mp=11656|impactyield=1.08|impactfracture=1.08|impactelasticity=600|shearyield=200|shearfracture=550|shearelasticity=200
+
{{v0.34 metal table row|name=Brass|color={{Tile|≡|6:1}}{{Tile|‼|6:6:1}}<span style="display:none">6:6:1</span>|source=[[Zinc]] + [[Copper]]|notes=Value difference is +4.5 if [[Tetrahedrite]] is used instead of [[Copper]]|soliddensity=8.55|val=7|valinc=+5|mp=11656|impactyield=1.08|impactfracture=1.08|impactelasticity=600|shearyield=200|shearfracture=550|shearelasticity=200
 
}}
 
}}
  
{{v0.31 metal table row|name=Bronze|color={{Tile|≡|6:0}}{{Tile|‼|6:4:0}}<span style="display:none">6:4:0</span>|source=[[Tin]] + [[Copper]]|notes=Can be used to forge all weapons, armor, ammunition, and picks|soliddensity=8.25|val=5|valinc=+3|mp=11868|impactyield=1.08|impactfracture=1.08|impactelasticity=600|shearyield=137|shearfracture=241|shearelasticity=200
+
{{v0.34 metal table row|name=Bronze|color={{Tile|≡|6:0}}{{Tile|‼|6:4:0}}<span style="display:none">6:4:0</span>|source=[[Tin]] + [[Copper]]|notes=Can be used to forge all weapons, armor, ammunition, and picks. Value difference is +2.5 if [[Tetrahedrite]] is used instead of [[Copper]]|soliddensity=8.25|val=5|valinc=+3|mp=11868|impactyield=1.08|impactfracture=1.08|impactelasticity=600|shearyield=137|shearfracture=241|shearelasticity=200
 
}}
 
}}
  
{{v0.31 metal table row|name=Electrum|color={{Tile|≡|6:1}}{{Tile|‼|6:6:1}}<span style="display:none">6:6:1</span>|source=[[Silver]] + [[Gold]]|notes=Can be made with [[Tetrahedrite]] or [[Galena]] instead of  [[Silver]] for a high value reaction.|soliddensity=8.65|val=20|valinc=+0|mp=11828|impactyield=1.08|impactfracture=1.08|impactelasticity=600|shearyield=50|shearfracture=100|shearelasticity=185
+
{{v0.34 metal table row|name=Electrum|color={{Tile|≡|6:1}}{{Tile|‼|6:6:1}}<span style="display:none">6:6:1</span>|source=[[Silver]] + [[Gold]]|notes=Can be made with [[Tetrahedrite]] or [[Galena]] instead of  [[Silver]] for increased value (Gold + Tetrahedrite: +3.5, Gold + Galena: +2.5).|soliddensity=8.65|val=20|valinc=+0|mp=11828|impactyield=1.08|impactfracture=1.08|impactelasticity=600|shearyield=50|shearfracture=100|shearelasticity=185
 
}}
 
}}
  
{{v0.31 metal table row|name=Fine pewter|color={{Tile|≡|7:1}}{{Tile|‼|7:7:1}}<span style="display:none">7:7:1</span>|source=3 [[Tin]] + 1 [[Copper]]|notes=|soliddensity=7.28|val=5|valinc=+3|mp=10417|impactyield=1.08|impactfracture=1.08|impactelasticity=1862|shearyield=12|shearfracture=100|shearelasticity=66
+
{{v0.34 metal table row|name=Fine pewter|color={{Tile|≡|7:1}}{{Tile|‼|7:7:1}}<span style="display:none">7:7:1</span>|source=3 [[Tin]] + 1 [[Copper]]|notes=Value difference is +2.75 if [[Tetrahedrite]] is used instead of [[Copper]]|soliddensity=7.28|val=5|valinc=+3|mp=10417|impactyield=1.08|impactfracture=1.08|impactelasticity=1862|shearyield=12|shearfracture=100|shearelasticity=66
 
}}
 
}}
  
{{v0.31 metal table row|name=Lay pewter|color={{Tile|≡|3:0}}{{Tile|‼|3:7:0}}<span style="display:none">3:7:0</span>|source=2 [[Tin]] + 1 [[Copper]] + 1 [[Lead]] '''!'''|notes=Unique color|soliddensity=7.28|val=3|valinc=+1|mp=10417|impactyield=1.08|impactfracture=1.08|impactelasticity=1862|shearyield=12|shearfracture=100|shearelasticity=66
+
{{v0.34 metal table row|name=Lay pewter|color={{Tile|≡|3:0}}{{Tile|‼|3:7:0}}<span style="display:none">3:7:0</span>|source=2 [[Tin]] + 1 [[Copper]] + 1 [[Lead]] '''!'''|notes=Unique color|soliddensity=7.28|val=3|valinc=+1|mp=10417|impactyield=1.08|impactfracture=1.08|impactelasticity=1862|shearyield=12|shearfracture=100|shearelasticity=66
 
}}
 
}}
  
{{v0.31 metal table row|name=Nickel silver|color={{Tile|≡|7:1}}{{Tile|‼|7:7:1}}<span style="display:none">7:7:1</span>|source= 2 [[Nickel]] + 1 [[Copper]] + 1 [[Zinc]] '''!'''|notes=|soliddensity=8.65|val=3|valinc=+1|mp=11620|impactyield=1.08|impactfracture=1.08|impactelasticity=600|shearyield=20|shearfracture=160|shearelasticity=26
+
{{v0.34 metal table row|name=Nickel silver|color={{Tile|≡|7:1}}{{Tile|‼|7:7:1}}<span style="display:none">7:7:1</span>|source= 2 [[Nickel]] + 1 [[Copper]] + 1 [[Zinc]] '''!'''|notes=|soliddensity=8.65|val=3|valinc=+1|mp=11620|impactyield=1.08|impactfracture=1.08|impactelasticity=600|shearyield=20|shearfracture=160|shearelasticity=26
 
}}
 
}}
  
{{v0.31 metal table row|name=Pig iron|color={{Tile|≡|0:1}}{{Tile|‼|0:7:1}}<span style="display:none">0:7:1</span>|source=[[Iron]] + [[flux]] stone + [[fuel]] '''!'''|notes=Only used to make [[steel]]|soliddensity=7.85|val=10|valinc=+0|mp=12106|impactyield=1.08|impactfracture=1.08|impactelasticity=635|shearyield=130|shearfracture=200|shearelasticity=159
+
{{v0.34 metal table row|name=Pig iron|color={{Tile|≡|0:1}}{{Tile|‼|0:7:1}}<span style="display:none">0:7:1</span>|source=[[Iron]] + [[flux]] stone + [[fuel]] '''!'''|notes=Only used to make [[steel]]|soliddensity=7.85|val=10|valinc=+0|mp=12106|impactyield=1.08|impactfracture=1.08|impactelasticity=635|shearyield=130|shearfracture=200|shearelasticity=159
 
}}
 
}}
  
{{v0.31 metal table row|name=Rose gold|color={{Tile|≡|5:1}}{{Tile|‼|5:5:1}}<span style="display:none">5:5:1</span>|source=3 [[Gold]] + 1 [[Copper]] '''!'''|notes=Unique color|soliddensity=19.32|val=23|valinc=+0|mp=11915|impactyield=1.08|impactfracture=1.08|impactelasticity=600|shearyield=50|shearfracture=100|shearelasticity=185
+
{{v0.34 metal table row|name=Rose gold|color={{Tile|≡|5:1}}{{Tile|‼|5:5:1}}<span style="display:none">5:5:1</span>|source=3 [[Gold]] + 1 [[Copper]] '''!'''|notes=Unique color|soliddensity=19.32|val=23|valinc=+0|mp=11915|impactyield=1.08|impactfracture=1.08|impactelasticity=600|shearyield=50|shearfracture=100|shearelasticity=185
 
}}
 
}}
  
{{v0.31 metal table row|name=Steel|color={{Tile|≡|0:1}}{{Tile|‼|0:7:1}}<span style="display:none">0:7:1</span>|source=[[Iron]] + [[Pig iron]] + [[flux]] stone + [[fuel]] '''!'''|notes=Can be used to forge all weapons, armor, ammunition, picks, and [[anvil]]s|soliddensity=7.85|val=30|valinc=+20|mp=12718|impactyield=1.08|impactfracture=1.08|impactelasticity=675|shearyield=520|shearfracture=860|shearelasticity=500
+
{{v0.34 metal table row|name=Steel|color={{Tile|≡|0:1}}{{Tile|‼|0:7:1}}<span style="display:none">0:7:1</span>|source=[[Iron]] + [[Pig iron]] + [[flux]] stone + [[fuel]] '''!'''|notes=Can be used to forge all weapons, armor, ammunition, picks, and [[anvil]]s|soliddensity=7.85|val=30|valinc=+20|mp=12718|impactyield=1.08|impactfracture=1.08|impactelasticity=675|shearyield=520|shearfracture=860|shearelasticity=500
 
}}
 
}}
  
{{v0.31 metal table row|name=Sterling silver|color={{Tile|≡|7:1}}{{Tile|‼|7:7:1}}<span style="display:none">7:7:1</span>|source=3 [[Silver]] + 1 [[Copper]] '''!'''|notes=|soliddensity=10.49|val=8|valinc=+0|mp=11602|impactyield=1.08|impactfracture=1.08|impactelasticity=1080|shearyield=100|shearfracture=170|shearelasticity=333
+
{{v0.34 metal table row|name=Sterling silver|color={{Tile|≡|7:1}}{{Tile|‼|7:7:1}}<span style="display:none">7:7:1</span>|source=3 [[Silver]] + 1 [[Copper]] '''!'''|notes=|soliddensity=10.49|val=8|valinc=+0|mp=11602|impactyield=1.08|impactfracture=1.08|impactelasticity=1080|shearyield=100|shearfracture=170|shearelasticity=333
 
}}
 
}}
  
{{v0.31 metal table row|name=Trifle pewter|color={{Tile|≡|7:0}}{{Tile|‼|7:3:0}}<span style="display:none">7:3:0</span>|source=2 [[Tin]] + 1 [[Copper]]|notes=|react=|soliddensity=7.28|val=4|valinc=+2|mp=10417|impactyield=1.08|impactfracture=1.08|impactelasticity=1862|shearyield=12|shearfracture=100|shearelasticity=66
+
{{v0.34 metal table row|name=Trifle pewter|color={{Tile|≡|7:0}}{{Tile|‼|7:3:0}}<span style="display:none">7:3:0</span>|source=2 [[Tin]] + 1 [[Copper]]|notes=Value difference is +1.67 if [[Tetrahedrite]] is used instead of [[Copper]]|react=|soliddensity=7.28|val=4|valinc=+2|mp=10417|impactyield=1.08|impactfracture=1.08|impactelasticity=1862|shearyield=12|shearfracture=100|shearelasticity=66
 
}}
 
}}
  
Line 104: Line 118:
 
''Legend:''
 
''Legend:''
 
:* '''Tile Color''' corresponds to how items made from that metal are displayed in game, foreground and background colors.
 
:* '''Tile Color''' corresponds to how items made from that metal are displayed in game, foreground and background colors.
:*'''Reaction''' indicates the basic recipe for an alloy - this does not include the [[fuel]] used in that creation.  See the article for that alloy or [[smelting]] for possible alternatives.
+
:*'''Reaction''' indicates the basic recipe for an alloy - this does not include any [[fuel]] necessary to operate the smelter.  See the article for that alloy or [[smelting]] for possible alternatives.
 
::'''!''' - ''You can use only [[bar]]s of metal in this reaction, not ores.
 
::'''!''' - ''You can use only [[bar]]s of metal in this reaction, not ores.
 
:*'''Density''' is used to determine the different weight of finished objects.
 
:*'''Density''' is used to determine the different weight of finished objects.
 
:*'''Melting point''' is used to determine if a material is [[magma-safe]] or not: magma is 12000°U.
 
:*'''Melting point''' is used to determine if a material is [[magma-safe]] or not: magma is 12000°U.
 
:*'''[[Material value]]''' is what the base value of an object made of this metal is multiplied by to determine its worth.
 
:*'''[[Material value]]''' is what the base value of an object made of this metal is multiplied by to determine its worth.
:*'''Value difference''' indicates the difference between the average [[value]] of the required bars of metals vs. the value of the resulting bars of alloy - what went in vs. what comes out, measured per bar. "+0" indicates that the resulting alloy is a perfectly average value of the component metals. For pure metals, this indicates the difference in value between the metal and the ore, separated with commas in cases where multiple ore values differ.
+
:*'''Value difference''' indicates the difference between the average [[value]] of the required bars of metals vs. the value of the resulting bars of alloy - what went in vs. what comes out, measured per bar. "+0" indicates that the resulting alloy is a perfectly average value of the component metals. Note that substituting tetrahedrite for copper ore always results in a value decrease, while substituting tetrahedrite or galena for silver ore always results in a value increase.
::'''*''' - Values marked with an asterisk denote ores that can yield multiple metals. For metals that have a less than 100% chance of production, the stated value increase is for occasions on which metal is produced; on average, the difference in value from smelting either [[tetrahedrite]] or [[galena]] is +1.
 
  
== Weapon & Armor Quality ==
+
== Weapon and armor quality ==
  
 
{{v0.31 material metal table head}}
 
{{v0.31 material metal table head}}
  
{{v0.31 material metal table row|name=Adamantine|color={{Tile|/|3:1}}<span style="display:none">3:3:1</span>|source=[[Raw adamantine]]|notes=Can be used to forge anything except beds; <br/> Blades are ten times as sharp as any other material aside from obsidian|soliddensity=0.200|mp=25000|val=300|valinc=+50|impactyield=5000|impactfracture=5000|impactelasticity=0|shearyield=5000|shearfracture=5000|shearelasticity=0
+
{{v0.31 material metal table row|name=Adamantine|color={{Tile|/|3:1}}<span style="display:none">3:3:1</span>|source=[[Raw adamantine]]|notes=Can be used to forge anything except beds <br/> |soliddensity=0.200|mp=25000|val=300|valinc=+50|impactyield=5000|impactfracture=5000|impactelasticity=0|shearyield=5000|shearfracture=5000|shearelasticity=0
 
}}
 
}}
  
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}}
 
}}
  
{{v0.31 material metal table row|name=Bone|color={{Tile|/|7:1}}<span style="display:none">7:7:1</span>|source=Creatures|notes=Can be used to make crossbows, ammunition and some armor|soliddensity=0.50|mp=NONE(burn at 10250)|val=1|valinc=+?, +?,<br />+?, +?|impactyield=200|impactfracture=200|impactelasticity=100|shearyield=115|shearfracture=130|shearelasticity=100
+
{{v0.31 material metal table row|name=Platinum|color={{Tile|/|7:1}}<span style="display:none">7:7:1</span>|source=[[Native platinum]]|notes= Only available as [[artifact]] weapons.|soliddensity=21.4|mp=13182|val=40|valinc=+?, +?,<br />+?, +?|impactyield=350|impactfracture=700|impactelasticity=152|shearyield=100|shearfracture=200|shearelasticity=164
}}
 
 
 
{{v0.31 material metal table row|name=Wood|color={{Tile|/|7:1}}<span style="display:none">7:7:1</span>|source=Trees|notes=Can be used to make crossbows, ammunition and some armor and weapons|soliddensity=0.50|mp=NONE(burn at 10250)|val=1|valinc=+?, +?,<br />+?, +?|impactyield=10|impactfracture=10|impactelasticity=1000|shearyield=40|shearfracture=40|shearelasticity=1000
 
}}
 
 
 
{{v0.31 material metal table row|name=Shell|color={{Tile|/|7:1}}<span style="display:none">7:7:1</span>|source=Creatures|notes=Can be used to make some armor|soliddensity=0.50|mp=NONE(burn at 10250)|val=1|valinc=+?, +?,<br />+?, +?|impactyield=200|impactfracture=200|impactelasticity=100|shearyield=115|shearfracture=130|shearelasticity=100
 
}}
 
 
 
{{v0.31 material metal table row|name=Cloth{{!}}Plant cloth|color={{Tile|/|7:1}}<span style="display:none">7:7:1</span>|source=Plants|notes=Can be used to make clothing|soliddensity=1.52|mp=NONE(burn at 10250)|val=1|valinc=+?, +?,<br />+?, +?|impactyield=10|impactfracture=10|impactelasticity=100000|shearyield=600|shearfracture=600|shearelasticity=100000
 
}}
 
 
 
{{v0.31 material metal table row|name=Cloth{{!}}Silk cloth|color={{Tile|/|7:1}}<span style="display:none">7:7:1</span>|source=Silk|notes=Can be used to make clothing|soliddensity=0.50|mp=NONE(burn at 10250)|val=1|valinc=+?, +?,<br />+?, +?|impactyield=10|impactfracture=10|impactelasticity=100000|shearyield=1150|shearfracture=1200|shearelasticity=100000
 
}}
 
 
 
{{v0.31 material metal table row|name=Cloth{{!}}Wool cloth|color={{Tile|/|7:1}}<span style="display:none">7:7:1</span>|source=Hair|notes=Can be used to make clothing|soliddensity=0.50|mp=NONE(burn at 10508)|val=1|valinc=+?, +?,<br />+?, +?|impactyield=10|impactfracture=10|impactelasticity=100000|shearyield=60|shearfracture=120|shearelasticity=100000
 
 
}}
 
}}
  
{{v0.31 material metal table row|name=Leather|color={{Tile|/|7:1}}<span style="display:none">7:7:1</span>|source=Creatures|notes=Can be used to make armor|soliddensity=0.50|mp=NONE(burn at 10250)|val=1|valinc=+?, +?,<br />+?, +?|impactyield=10|impactfracture=10|impactelasticity=50000|shearyield=25|shearfracture=25|shearelasticity=50000
 
}}
 
  
  
 
|}
 
|}
*''Combat information'' is used internally by the game to determine the combat properties of weapons and armor made from this metal:
+
*''Combat information'' is used internally by the game to determine the [[material science|combat properties]] of weapons and armor made from this metal:
 
:'''Density''': Used in conjunction with other factors - heavier weapons (higher numbers) hit with more force, light weapons tend to have less penetration.  Value shown here is g/cm<sup>3</sup>, which is the raw value divided by 10<sup>3</sup>
 
:'''Density''': Used in conjunction with other factors - heavier weapons (higher numbers) hit with more force, light weapons tend to have less penetration.  Value shown here is g/cm<sup>3</sup>, which is the raw value divided by 10<sup>3</sup>
 
:'''Impact yield''': Used for blunt-force combat; ''higher'' is better. This is the raw value divided by 10<sup>3</sup> (i.e., kPa).
 
:'''Impact yield''': Used for blunt-force combat; ''higher'' is better. This is the raw value divided by 10<sup>3</sup> (i.e., kPa).
Line 191: Line 187:
  
 
Adamantine and Steel take first and second place respectively, with Iron the third best material in the game. Beyond which, bronze is in a close tie with copper as to being the second worst material. As in older versions, silver continues to hold steady as the worst material available (no longer beneficial with wooden training weapons being available now) in regards to edged weaponry.  
 
Adamantine and Steel take first and second place respectively, with Iron the third best material in the game. Beyond which, bronze is in a close tie with copper as to being the second worst material. As in older versions, silver continues to hold steady as the worst material available (no longer beneficial with wooden training weapons being available now) in regards to edged weaponry.  
Additionally, with regards to blunt weapons almost all of the non-adamantine materials perform equally well, with a very slight edge towards steel and silver. Here is the thread with the details:
+
Additionally, with regards to blunt weapons all of the standard materials perform respectably well, with a very slight edge towards steel and silver. Here is the thread with the details:
  
 
http://www.bay12forums.com/smf/index.php?topic=53571.0
 
http://www.bay12forums.com/smf/index.php?topic=53571.0
Line 207: Line 203:
 
! Terrible
 
! Terrible
 
! Notes
 
! Notes
 
 
|-
 
|-
 
| Armor
 
| Armor
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|  
 
|  
 
|  
 
|  
 
 
|-
 
|-
 
| Edged Weapons
 
| Edged Weapons
| Adamantine <p>(worst for missiles)
+
| Adamantine
 
| Steel
 
| Steel
 
| Iron
 
| Iron
Line 227: Line 221:
 
| Silver
 
| Silver
 
| For piercing iron armor, copper is better than bronze.  For piercing copper or bronze armor, bronze is better than copper.
 
| For piercing iron armor, copper is better than bronze.  For piercing copper or bronze armor, bronze is better than copper.
 +
|-
 +
| Ammunition
 +
| Steel, Iron, Bronze, Bismuth Bronze, Copper, Silver
 +
|
 +
| Adamantine
 +
|
 +
|
 +
|
 +
| Adamantine bolts deflect off of adamantine armor, but otherwise their performance is on par with bolts made out of other metals.
 
|-
 
|-
 
| Blunt Weapons
 
| Blunt Weapons
 +
| Platinum
 
| Steel, Silver
 
| Steel, Silver
 
| Copper, Bismuth Bronze, Bronze, Iron
 
| Copper, Bismuth Bronze, Bronze, Iron
| ---
+
|  
| ---
+
|  
| ---
 
 
| Adamantine
 
| Adamantine
| All six non-adamantine metals perform nearly identically. Steel has a slightly higher rate of critical wounds, while silver is slightly more likely to penetrate armor.
+
| All six standard weapon metals perform nearly identically. Steel has a slightly higher rate of critical wounds, while silver is slightly more likely to penetrate armor. Platinum (only available as [[artifact]] weapons) has twice the density of silver and several other improved properties, making it the best metal for impact weapons, though very limited in production.
 
 
 
|}
 
|}
  
 
Cross referencing this table with the table at the top of this section seems to indicate that low densities, high impact fractures, and high shear fractures contribute to the killing power of edged weapons
 
Cross referencing this table with the table at the top of this section seems to indicate that low densities, high impact fractures, and high shear fractures contribute to the killing power of edged weapons
  
See also some [[User:Shinziril#Weapons_and_Armor|outstanding research]] on armor vs. different weapon types by Shinziril.
+
See also:
 +
:Some [[User:Shinziril#Weapons_and_Armor|outstanding research]] on armor vs. different weapon types by Shinziril.
 +
:[http://www.bay12forums.com/smf/index.php?topic=116151.0 Dwarven Research: A Comparison Study on the Effectiveness of Bolts vs Armors].
  
 
{{Category|Metals}}{{Category|Materials}}
 
{{Category|Metals}}{{Category|Materials}}
 
[[ru:DF2012:Metal]]
 
[[ru:DF2012:Metal]]

Latest revision as of 11:37, 30 June 2014

This article is about an older version of DF.

Metal is a material extracted from ore at a smelter, turning the ore into bars of pure metal. (One special metal becomes wafers instead of bars.) It is sometimes combined with other materials to form an alloy metal, which is also measured by the bar. An alloy usually improves on the properties of its components to give more uses or increased value. The metal bars resulting from smelting are used to make items such as weapons, armor, furniture, and crafts at a forge.

Smelting pure ores into the corresponding bars raises the base value from that of stone (3) to that of bars (5). This value is then multiplied against the material multiplier of the metal to give the final value for the bar.

Alloys[edit]

There are eleven pure metals in Dwarf Fortress (plus a twelfth special metal). Many of these can be mixed together to create alloys of one type or another, of which there are another fourteen. In some cases making alloys will result in an overall increase in value, or the resultant alloy will be more powerful when used to forge weapons or armor, though many alloys result in no overall increase in utility or created wealth. (These increases in value can be compared in the "Difference" column of the below table.)

There are many uses for alloys:

  • Increased performance for armor or weapons.
  • Increased value (particularly when a silver-bearing ore is substituted for silver)
  • Stretching your supply of scarce metals.
  • Creating items with distinct colors (for instance, rose gold is magenta) for furniture, color-coding rooms or levers, or artistic constructions (including floor mosaics).
  • Increasing happiness or perceived room value for a dwarf who particularly likes a given alloy.
  • Decreased fuel consumption if making the alloy directly from ores (e.g. bronze requires only one smelter task to make 8 bars from 2 ores).

The number of bars used to create an alloy always equals the number of bars produced: the number of bars input equals the number of bars of output. However, the number of bars produced from smelting ores is four times greater (X ores in = 4X bars out).

List of metals[edit]

Pure Metals[edit]

Metal
Name
Tile
Color
Source Ore(s) Density (g/cm3) Melting point Material
value
Value difference Notes and
Other Uses
Adamantine 3:3:1 Raw adamantine 0.200 25000 °U 300 +50 Cannot be smelted directly; must be extracted first.
Can be used to forge anything except beds;
Blades are 10x sharper than any other material
Aluminum 7:7:1 Native aluminum 2.70 11188 °U 40 +0
Bismuth 5:5:1 Bismuthinite 9.78 10488 °U 2 +1 Only useful for alloying into bismuth bronze
Copper 6:4:0 Native copper, Malachite, Tetrahedrite 8.93 11952 °U 2 +0, +0, -1* Can be used to forge all weapons, armor, ammunition, and picks
Gold 6:6:1 Native gold 19.32 11915 °U 30 +0
Iron 0:7:1 Hematite, Limonite, Magnetite 7.85 12768 °U 10 +2 Can be used to forge all weapons, armor, ammunition, picks, and anvils
Lead 0:7:1 Galena 11.34 10589 °U 2 -3*
Nickel 7:3:0 Garnierite 8.80 12619 °U 2 +0
Platinum 7:7:1 Native platinum 21.40 13182 °U 40 +0
Silver 7:7:1 Native silver, Horn silver,
Galena (50%), Tetrahedrite (20%)
10.49 11731 °U 10 +0, +0,
+5*, +7*
Can be used to forge melee weapons and ammunition
Tin 7:3:0 Cassiterite 7.28 10417 °U 2 +0
Zinc 7:3:0 Sphalerite 7.13 10755 °U 2 +0

Legend:

  • Tile Color corresponds to how items made from that metal are displayed in game, foreground and background colors.
  • Source Ore(s) indicates the specific ores that can provide a metal. If production of the metal is not guaranteed, a percent chance is indicated following the ore.
  • Density is used to determine the different weight of finished objects.
  • Melting point is used to determine if a material is magma-safe or not: magma is 12000°U.
  • Material value is what the base value of an object made of this metal is multiplied by to determine its worth.
  • Value difference indicates the difference in material value between the metal and the ore, separated with commas in cases where multiple ore values differ.
* - Values marked with an asterisk denote ores that can yield multiple metals. On average, the expected difference in value from smelting tetrahedrite is +1 and galena is +2.

Alloys[edit]

(Unless specified, ores of the ingredients may be used instead of bars for alloy reactions)

Metal
Name
Tile
Color
  Reaction   Density (g/cm3) Melting point Material
value
Value difference Notes and
Other Uses
Billon 7:3:0 Silver + Copper 8.93 11952 °U 6 +0 Can be made with Tetrahedrite or Galena instead of Silver for increased value (Tetrahedrite + Tetrahedrite: +3, Copper ore + Tetrahedrite: +3.5, Copper ore + Galena: + 2.5, Tetrahedrite + Galena: + 2).
Bismuth bronze 6:6:1 1 Tin + 2 Copper + 1 Bismuth ! 8.25 11868 °U 6 +4 Can be used to forge all weapons, armor, ammunition, and picks
Black bronze 5:6:0 2 Copper + 1 Silver + 1 Gold ! 8.93 11952 °U 11 +0 Unique color
Brass 6:6:1 Zinc + Copper 8.55 11656 °U 7 +5 Value difference is +4.5 if Tetrahedrite is used instead of Copper
Bronze 6:4:0 Tin + Copper 8.25 11868 °U 5 +3 Can be used to forge all weapons, armor, ammunition, and picks. Value difference is +2.5 if Tetrahedrite is used instead of Copper
Electrum 6:6:1 Silver + Gold 8.65 11828 °U 20 +0 Can be made with Tetrahedrite or Galena instead of Silver for increased value (Gold + Tetrahedrite: +3.5, Gold + Galena: +2.5).
Fine pewter 7:7:1 3 Tin + 1 Copper 7.28 10417 °U 5 +3 Value difference is +2.75 if Tetrahedrite is used instead of Copper
Lay pewter 3:7:0 2 Tin + 1 Copper + 1 Lead ! 7.28 10417 °U 3 +1 Unique color
Nickel silver 7:7:1 2 Nickel + 1 Copper + 1 Zinc ! 8.65 11620 °U 3 +1
Pig iron 0:7:1 Iron + flux stone + fuel ! 7.85 12106 °U 10 +0 Only used to make steel
Rose gold 5:5:1 3 Gold + 1 Copper ! 19.32 11915 °U 23 +0 Unique color
Steel 0:7:1 Iron + Pig iron + flux stone + fuel ! 7.85 12718 °U 30 +20 Can be used to forge all weapons, armor, ammunition, picks, and anvils
Sterling silver 7:7:1 3 Silver + 1 Copper ! 10.49 11602 °U 8 +0
Trifle pewter 7:3:0 2 Tin + 1 Copper 7.28 10417 °U 4 +2 Value difference is +1.67 if Tetrahedrite is used instead of Copper

Legend:

  • Tile Color corresponds to how items made from that metal are displayed in game, foreground and background colors.
  • Reaction indicates the basic recipe for an alloy - this does not include any fuel necessary to operate the smelter. See the article for that alloy or smelting for possible alternatives.
! - You can use only bars of metal in this reaction, not ores.
  • Density is used to determine the different weight of finished objects.
  • Melting point is used to determine if a material is magma-safe or not: magma is 12000°U.
  • Material value is what the base value of an object made of this metal is multiplied by to determine its worth.
  • Value difference indicates the difference between the average value of the required bars of metals vs. the value of the resulting bars of alloy - what went in vs. what comes out, measured per bar. "+0" indicates that the resulting alloy is a perfectly average value of the component metals. Note that substituting tetrahedrite for copper ore always results in a value decrease, while substituting tetrahedrite or galena for silver ore always results in a value increase.

Weapon and armor quality[edit]

Metal Value Density Impact yield Impact fracture Impact elasticity Shear yield Shear fracture Shear elasticity Notes
Adamantine 300 0.200 5000 5000 0 5000 5000 0 Can be used to forge anything except beds
Steel 30 7.85 1505 2520 940 430 720 215 Can be used to forge all weapons, armor, ammunition, picks, and anvils
Bismuth bronze 6 8.25 602 843 547 172 241 156 Can be used to forge all weapons, armor, ammunition, and picks
Bronze 5 8.25 602 843 547 172 241 156 Can be used to forge all weapons, armor, ammunition, and picks
Iron 10 7.85 542 1080 319 155 310 189 Can be used to forge all weapons, armor, ammunition, picks, and anvils
Copper 2 8.93 245 770 175 70 220 145 Can be used to forge all weapons, armor, ammunition, and picks


Silver 10 10.49 350 595 350 100 170 333 Can be used to forge melee weapons and ammunition
Platinum 40 21.4 350 700 152 100 200 164 Only available as artifact weapons.


  • Combat information is used internally by the game to determine the combat properties of weapons and armor made from this metal:
Density: Used in conjunction with other factors - heavier weapons (higher numbers) hit with more force, light weapons tend to have less penetration. Value shown here is g/cm3, which is the raw value divided by 103
Impact yield: Used for blunt-force combat; higher is better. This is the raw value divided by 103 (i.e., kPa).
Impact fracture: Used for blunt-force combat; higher is better. This is the raw value divided by 103 (i.e., kPa).
Impact elasticity: Used for blunt-force combat; lower is better. This is the raw value.
Shear yield: Used for cutting calculations in combat; higher is better. This is the raw value divided by 103 (i.e., kPa).
Shear fracture: Used for cutting calculations in combat; higher is better. This is the raw value divided by 103 (i.e., kPa).
Shear elasticity: Used for cutting calculations in combat; lower is better. This is the raw value.
  • General Term Explanations (From Wikipedia)
Yield Strength - The stress at which material strain changes from elastic deformation to plastic deformation, causing it to deform permanently.
Fracture Strength - The stress coordinate on the stress-strain curve at the point of rupture.


Stress - Force per area = F/A
Strain - Deformation of a solid due to stress = Stress/Young's Modulus

So...

Explanations!
Yield Strength is the amount of stress required to permanently deform (bend) a material (plastic deformation)
Fracture Strength is the amount of stress required to permanently break (rupture) a material
Elasticity (or IMPACT_STRAIN_AT_YIELD in RAWs) is the amount of deformation (bending) that occurs at the yield point
Implications to Dwarf Fortress Combat
Yield combined with Elasticity can tell what a material will do under stress (be it from a hammer, axe, or arrow)
Higher yield means that it takes more stress to deform
Lower elasticity means that it will deform less when stress is applied

Preliminary Combat Testing & Analysis

Adamantine and Steel take first and second place respectively, with Iron the third best material in the game. Beyond which, bronze is in a close tie with copper as to being the second worst material. As in older versions, silver continues to hold steady as the worst material available (no longer beneficial with wooden training weapons being available now) in regards to edged weaponry. Additionally, with regards to blunt weapons all of the standard materials perform respectably well, with a very slight edge towards steel and silver. Here is the thread with the details:

http://www.bay12forums.com/smf/index.php?topic=53571.0

Keep in mind with how unbelievably complicated this system is nothing should be taken as word of law yet.

Best Better Good Fair Poor Terrible Notes
Armor Adamantine Steel Iron Bronze, Bismuth Bronze Copper
Edged Weapons Adamantine Steel Iron Bronze, Bismuth Bronze Copper Silver For piercing iron armor, copper is better than bronze. For piercing copper or bronze armor, bronze is better than copper.
Ammunition Steel, Iron, Bronze, Bismuth Bronze, Copper, Silver Adamantine Adamantine bolts deflect off of adamantine armor, but otherwise their performance is on par with bolts made out of other metals.
Blunt Weapons Platinum Steel, Silver Copper, Bismuth Bronze, Bronze, Iron Adamantine All six standard weapon metals perform nearly identically. Steel has a slightly higher rate of critical wounds, while silver is slightly more likely to penetrate armor. Platinum (only available as artifact weapons) has twice the density of silver and several other improved properties, making it the best metal for impact weapons, though very limited in production.

Cross referencing this table with the table at the top of this section seems to indicate that low densities, high impact fractures, and high shear fractures contribute to the killing power of edged weapons

See also:

Some outstanding research on armor vs. different weapon types by Shinziril.
Dwarven Research: A Comparison Study on the Effectiveness of Bolts vs Armors.