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ASTM B631 Class B vs. CC764S Brass

ASTM B631 class B belongs to the otherwise unclassified metals classification, while CC764S 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 CC764S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Poisson's Ratio 0.31
0.31
Shear Modulus, GPa 78 to 79
41

Thermal Properties

Latent Heat of Fusion, J/g 150
180
Melting Completion (Liquidus), °C 2460 to 2480
850
Specific Heat Capacity, J/kg-K 170
400
Thermal Conductivity, W/m-K 450
94
Thermal Expansion, µm/m-K 12
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50 to 53
32
Electrical Conductivity: Equal Weight (Specific), % IACS 32 to 34
36

Otherwise Unclassified Properties

Density, g/cm3 14
7.9
Embodied Carbon, kg CO2/kg material 49
2.9
Embodied Energy, MJ/kg 760
49

Common Calculations

Stiffness to Weight: Axial, points 8.1
7.6
Stiffness to Weight: Bending, points 14
20
Thermal Diffusivity, mm2/s 190
30