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ASTM B631 Class A vs. AWS ENi-1

ASTM B631 class A belongs to the otherwise unclassified metals classification, while AWS ENi-1 belongs to the nickel alloys. There are 16 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 ASTM B631 class A and the bottom bar is AWS ENi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
180
Poisson's Ratio 0.3
0.31
Shear Modulus, GPa 85 to 86
69

Thermal Properties

Latent Heat of Fusion, J/g 160
310
Melting Completion (Liquidus), °C 2680 to 2690
1360
Specific Heat Capacity, J/kg-K 160
450
Thermal Conductivity, W/m-K 420
73
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40 to 47
19
Electrical Conductivity: Equal Weight (Specific), % IACS 25 to 29
19

Otherwise Unclassified Properties

Density, g/cm3 15
8.7
Embodied Carbon, kg CO2/kg material 43
11
Embodied Energy, MJ/kg 670
150

Common Calculations

Stiffness to Weight: Axial, points 8.5
12
Stiffness to Weight: Bending, points 14
22
Thermal Diffusivity, mm2/s 180
19