Black Bronze
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Wikipedia article
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This article is about the current version of DF.
Note that some content may still need to be updated.
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Black bronze is a semiprecious alloy of copper, gold and silver. Unlike regular or bismuth bronze, black bronze cannot be used to create weapons or armor, restricting its uses to blacksmithing and metalcrafting purposes. Black bronze cannot be smelted directly from ore, but only from bars of pure metals. Unlike some alloys, the value of a bar of black bronze is equal exactly to the average value of its components – creating this alloy does not increase the total value of the material (2 copper bars at 10☼ each + 1 silver bar at 50☼ + 1 gold bar at 150☼ = 220☼/4 bars = 55☼/bar of black bronze).
In real life
The actual composition and process of creating Black Corinthian Bronze has been lost to history, as is typical of closely guarded trade secrets of pre-industrial society. In Japan, a similar alloy of copper with gold, known as Shakudō, was somewhat commonly used for decoration of luxury metal goods. Unlike the ancient Greek metal, however, this "black bronze" was never lost and is still produced in small quantities today.
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temperature values unknown, used copper
also called shakudo or hepatizon depending on the proportions (some have no silver)
got the name from black corinthian bronze, though these proportions are more like regular corinthian bronze/brass
I just wanted the liver-colored one, dropped "corinthian" because it sounds too location/culture specific
value of 11 is the weighted average value of 2copper/1silver/1gold components
[INORGANIC:BLACK_BRONZE]
[USE_MATERIAL_TEMPLATE:METAL_TEMPLATE]
[STATE_NAME_ADJ:ALL_SOLID:black bronze]
[STATE_NAME_ADJ:LIQUID:molten black bronze]
[STATE_NAME_ADJ:GAS:boiling black bronze]
[DISPLAY_COLOR:5:6:0]
[BUILD_COLOR:5:6:0]
[MATERIAL_VALUE:11]
[SPEC_HEAT:385]
[MELTING_POINT:11952]
[BOILING_POINT:14611]
[SOLID_DENSITY:8930]
[LIQUID_DENSITY:8020]
[MOLAR_MASS:63546]
[IMPACT_YIELD:245000]
[IMPACT_FRACTURE:770000]
[IMPACT_STRAIN_AT_YIELD:175]
[COMPRESSIVE_YIELD:245000]
[COMPRESSIVE_FRACTURE:770000]
[COMPRESSIVE_STRAIN_AT_YIELD:175] 140
[TENSILE_YIELD:70000]
[TENSILE_FRACTURE:220000]
[TENSILE_STRAIN_AT_YIELD:58] 120
[TORSION_YIELD:70000]
[TORSION_FRACTURE:220000]
[TORSION_STRAIN_AT_YIELD:145]
[SHEAR_YIELD:70000]
[SHEAR_FRACTURE:220000]
[SHEAR_STRAIN_AT_YIELD:145] 48
[BENDING_YIELD:70000]
[BENDING_FRACTURE:220000]
[BENDING_STRAIN_AT_YIELD:58]
[MAX_EDGE:10000]
[ITEMS_HARD]
[ITEMS_METAL]
[ITEMS_BARRED]
[ITEMS_SCALED]
[STATE_COLOR:ALL_SOLID:BLACK] |
