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ASTM B631 Class B vs. C84500 Brass

ASTM B631 class B belongs to the otherwise unclassified metals classification, while C84500 brass belongs to the copper alloys. There are 16 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is ASTM B631 class B and the bottom bar is C84500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
100
Poisson's Ratio 0.31
0.34
Shear Modulus, GPa 78 to 79
39

Thermal Properties

Latent Heat of Fusion, J/g 150
180
Melting Completion (Liquidus), °C 2460 to 2480
980
Specific Heat Capacity, J/kg-K 170
360
Thermal Conductivity, W/m-K 450
72
Thermal Expansion, µm/m-K 12
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50 to 53
16
Electrical Conductivity: Equal Weight (Specific), % IACS 32 to 34
17

Otherwise Unclassified Properties

Density, g/cm3 14
8.7
Embodied Carbon, kg CO2/kg material 49
2.9
Embodied Energy, MJ/kg 760
47

Common Calculations

Stiffness to Weight: Axial, points 8.1
6.6
Stiffness to Weight: Bending, points 14
18
Thermal Diffusivity, mm2/s 190
23