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C34000 Brass vs. ASTM B631 Class A

C34000 brass belongs to the copper alloys classification, while ASTM B631 class A belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C34000 brass and the bottom bar is ASTM B631 class A.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
220
Poisson's Ratio 0.31
0.3
Rockwell B Hardness 53 to 91
63 to 98
Shear Modulus, GPa 40
85 to 86

Thermal Properties

Latent Heat of Fusion, J/g 170
160
Melting Completion (Liquidus), °C 930
2680 to 2690
Specific Heat Capacity, J/kg-K 380
160
Thermal Conductivity, W/m-K 120
420
Thermal Expansion, µm/m-K 21
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
40 to 47
Electrical Conductivity: Equal Weight (Specific), % IACS 29
25 to 29

Otherwise Unclassified Properties

Density, g/cm3 8.1
15
Embodied Carbon, kg CO2/kg material 2.6
43
Embodied Energy, MJ/kg 45
670

Common Calculations

Stiffness to Weight: Axial, points 7.1
8.5
Stiffness to Weight: Bending, points 19
14
Thermal Diffusivity, mm2/s 37
180