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ASTM B631 Class A vs. Austenitic Nodular Cast Iron

ASTM B631 class A belongs to the otherwise unclassified metals classification, while austenitic nodular cast iron belongs to the iron alloys. There are 12 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is ASTM B631 class A and the bottom bar is austenitic nodular cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
180 to 190
Poisson's Ratio 0.3
0.29 to 0.3
Shear Modulus, GPa 85 to 86
70 to 72

Thermal Properties

Latent Heat of Fusion, J/g 160
280 to 350
Melting Completion (Liquidus), °C 2680 to 2690
1340 to 1400
Specific Heat Capacity, J/kg-K 160
470 to 490
Thermal Expansion, µm/m-K 11
13 to 14

Otherwise Unclassified Properties

Density, g/cm3 15
7.7 to 8.0
Embodied Carbon, kg CO2/kg material 43
3.5 to 4.9
Embodied Energy, MJ/kg 670
48 to 68

Common Calculations

Stiffness to Weight: Axial, points 8.5
13
Stiffness to Weight: Bending, points 14
24 to 25

Comparable Variants