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ASTM B631 Class A vs. Nickel 689

ASTM B631 class A belongs to the otherwise unclassified metals classification, while nickel 689 belongs to the nickel alloys. There are 12 material properties with values for both materials. Properties with values for just one material (21, in this case) are not shown.

For each property being compared, the top bar is ASTM B631 class A and the bottom bar is nickel 689.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
210
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 85 to 86
80

Thermal Properties

Latent Heat of Fusion, J/g 160
330
Melting Completion (Liquidus), °C 2680 to 2690
1440
Specific Heat Capacity, J/kg-K 160
450
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Density, g/cm3 15
8.5
Embodied Carbon, kg CO2/kg material 43
11
Embodied Energy, MJ/kg 670
150

Common Calculations

Stiffness to Weight: Axial, points 8.5
14
Stiffness to Weight: Bending, points 14
23