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ASTM B522 Class II vs. ASTM B631 Class B

Both ASTM B522 class II and ASTM B631 class B are otherwise unclassified metals. There are 12 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is ASTM B522 class II and the bottom bar is ASTM B631 class B.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 96
210
Poisson's Ratio 0.41
0.31
Shear Modulus, GPa 34
78 to 79

Thermal Properties

Latent Heat of Fusion, J/g 77
150
Melting Completion (Liquidus), °C 1030
2460 to 2480
Specific Heat Capacity, J/kg-K 160
170
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
50 to 53
Electrical Conductivity: Equal Weight (Specific), % IACS 5.7
32 to 34

Otherwise Unclassified Properties

Density, g/cm3 17
14

Common Calculations

Stiffness to Weight: Axial, points 3.1
8.1
Stiffness to Weight: Bending, points 8.9
14