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AWS BNi-8 vs. ASTM B631 Class B

AWS BNi-8 belongs to the nickel alloys classification, while ASTM B631 class B belongs to the otherwise unclassified metals. There are 12 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-8 and the bottom bar is ASTM B631 class B.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
210
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 67
78 to 79

Thermal Properties

Latent Heat of Fusion, J/g 390
150
Melting Completion (Liquidus), °C 1010
2460 to 2480
Specific Heat Capacity, J/kg-K 480
170
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Density, g/cm3 7.9
14
Embodied Carbon, kg CO2/kg material 8.2
49
Embodied Energy, MJ/kg 120
760

Common Calculations

Stiffness to Weight: Axial, points 12
8.1
Stiffness to Weight: Bending, points 24
14