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C68300 Brass vs. ASTM B631 Class B

C68300 brass belongs to the copper alloys classification, while ASTM B631 class B belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is C68300 brass and the bottom bar is ASTM B631 class B.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
210
Poisson's Ratio 0.31
0.31
Rockwell B Hardness 60
53 to 85
Shear Modulus, GPa 40
78 to 79

Thermal Properties

Latent Heat of Fusion, J/g 180
150
Melting Completion (Liquidus), °C 900
2460 to 2480
Specific Heat Capacity, J/kg-K 390
170
Thermal Conductivity, W/m-K 120
450
Thermal Expansion, µm/m-K 20
12

Otherwise Unclassified Properties

Density, g/cm3 8.0
14
Embodied Carbon, kg CO2/kg material 2.8
49
Embodied Energy, MJ/kg 46
760

Common Calculations

Stiffness to Weight: Axial, points 7.3
8.1
Stiffness to Weight: Bending, points 20
14
Thermal Diffusivity, mm2/s 38
190