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ASTM B631 Class B vs. AWS E320LR

ASTM B631 class B 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 B and the bottom bar is AWS E320LR.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 78 to 79
77

Thermal Properties

Latent Heat of Fusion, J/g 150
300
Melting Completion (Liquidus), °C 2460 to 2480
1410
Specific Heat Capacity, J/kg-K 170
460
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Density, g/cm3 14
8.2
Embodied Carbon, kg CO2/kg material 49
6.2
Embodied Energy, MJ/kg 760
87

Common Calculations

Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 14
24