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ASTM B631 Class A vs. C86700 Bronze

ASTM B631 class A belongs to the otherwise unclassified metals classification, while C86700 bronze belongs to the copper alloys. There are 16 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is ASTM B631 class A and the bottom bar is C86700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Poisson's Ratio 0.3
0.31
Shear Modulus, GPa 85 to 86
41

Thermal Properties

Latent Heat of Fusion, J/g 160
180
Melting Completion (Liquidus), °C 2680 to 2690
880
Specific Heat Capacity, J/kg-K 160
400
Thermal Conductivity, W/m-K 420
89
Thermal Expansion, µm/m-K 11
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40 to 47
17
Electrical Conductivity: Equal Weight (Specific), % IACS 25 to 29
19

Otherwise Unclassified Properties

Density, g/cm3 15
7.9
Embodied Carbon, kg CO2/kg material 43
2.9
Embodied Energy, MJ/kg 670
49

Common Calculations

Stiffness to Weight: Axial, points 8.5
7.5
Stiffness to Weight: Bending, points 14
20
Thermal Diffusivity, mm2/s 180
28