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C64800 Bronze vs. ASTM A387 Grade 12 Steel

C64800 bronze belongs to the copper alloys classification, while ASTM A387 grade 12 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C64800 bronze and the bottom bar is ASTM A387 grade 12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 8.0
25
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
73
Shear Strength, MPa 380
300 to 330
Tensile Strength: Ultimate (UTS), MPa 640
470 to 520
Tensile Strength: Yield (Proof), MPa 630
260 to 310

Thermal Properties

Latent Heat of Fusion, J/g 220
250
Maximum Temperature: Mechanical, °C 200
430
Melting Completion (Liquidus), °C 1090
1470
Melting Onset (Solidus), °C 1030
1420
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 260
44
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 65
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 66
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 33
2.8
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.6
Embodied Energy, MJ/kg 43
21
Embodied Water, L/kg 310
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
98 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 1680
180 to 250
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 20
16 to 18
Strength to Weight: Bending, points 19
17 to 18
Thermal Diffusivity, mm2/s 75
12
Thermal Shock Resistance, points 23
14 to 15

Alloy Composition

Carbon (C), % 0
0.050 to 0.17
Chromium (Cr), % 0 to 0.090
0.8 to 1.2
Cobalt (Co), % 1.0 to 3.0
0
Copper (Cu), % 92.4 to 98.8
0
Iron (Fe), % 0 to 1.0
97 to 98.2
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0.4 to 0.65
Molybdenum (Mo), % 0
0.45 to 0.6
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.5
0 to 0.025
Silicon (Si), % 0.2 to 1.0
0.15 to 0.4
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.5
0