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ASTM B631 Class C vs. AWS E320LR

ASTM B631 class C belongs to the otherwise unclassified metals classification, while AWS E320LR belongs to the iron alloys. There are 12 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is ASTM B631 class C and the bottom bar is AWS E320LR.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180 to 190
200
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 66 to 71
77

Thermal Properties

Latent Heat of Fusion, J/g 140 to 150
300
Melting Completion (Liquidus), °C 2090 to 2230
1410
Specific Heat Capacity, J/kg-K 180
460
Thermal Expansion, µm/m-K 14
14

Otherwise Unclassified Properties

Density, g/cm3 13 to 14
8.2
Embodied Carbon, kg CO2/kg material 55 to 59
6.2
Embodied Energy, MJ/kg 860 to 920
87

Common Calculations

Stiffness to Weight: Axial, points 7.4 to 7.6
13
Stiffness to Weight: Bending, points 14
24