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C68700 Brass vs. ASTM B631 Class C

C68700 brass belongs to the copper alloys classification, while ASTM B631 class C belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is C68700 brass and the bottom bar is ASTM B631 class C.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
180 to 190
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 41
66 to 71

Thermal Properties

Latent Heat of Fusion, J/g 190
140 to 150
Melting Completion (Liquidus), °C 970
2090 to 2230
Specific Heat Capacity, J/kg-K 400
180
Thermal Conductivity, W/m-K 100
450 to 490
Thermal Expansion, µm/m-K 19
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
55 to 63
Electrical Conductivity: Equal Weight (Specific), % IACS 25
36 to 43

Otherwise Unclassified Properties

Density, g/cm3 8.3
13 to 14
Embodied Carbon, kg CO2/kg material 2.8
55 to 59
Embodied Energy, MJ/kg 46
860 to 920

Common Calculations

Stiffness to Weight: Axial, points 7.3
7.4 to 7.6
Stiffness to Weight: Bending, points 19
14
Thermal Diffusivity, mm2/s 30
180 to 200