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ASTM B631 Class A vs. C93200 Bronze

ASTM B631 class A belongs to the otherwise unclassified metals classification, while C93200 bronze belongs to the copper alloys. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is ASTM B631 class A and the bottom bar is C93200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
100
Poisson's Ratio 0.3
0.35
Rockwell B Hardness 63 to 98
65
Shear Modulus, GPa 85 to 86
38

Thermal Properties

Latent Heat of Fusion, J/g 160
180
Melting Completion (Liquidus), °C 2680 to 2690
980
Specific Heat Capacity, J/kg-K 160
360
Thermal Conductivity, W/m-K 420
59
Thermal Expansion, µm/m-K 11
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40 to 47
12
Electrical Conductivity: Equal Weight (Specific), % IACS 25 to 29
12

Otherwise Unclassified Properties

Density, g/cm3 15
8.8
Embodied Carbon, kg CO2/kg material 43
3.2
Embodied Energy, MJ/kg 670
52

Common Calculations

Stiffness to Weight: Axial, points 8.5
6.5
Stiffness to Weight: Bending, points 14
18
Thermal Diffusivity, mm2/s 180
18