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SAE-AISI M2 Steel vs. ASTM B631 Class B

SAE-AISI M2 steel belongs to the iron alloys classification, while ASTM B631 class B belongs to the otherwise unclassified metals. There are 14 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M2 steel and the bottom bar is ASTM B631 class B.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 77
78 to 79

Thermal Properties

Latent Heat of Fusion, J/g 260
150
Melting Completion (Liquidus), °C 1610
2460 to 2480
Specific Heat Capacity, J/kg-K 440
170
Thermal Conductivity, W/m-K 22
450
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Density, g/cm3 8.4
14
Embodied Carbon, kg CO2/kg material 8.8
49
Embodied Energy, MJ/kg 130
760

Common Calculations

Stiffness to Weight: Axial, points 13
8.1
Stiffness to Weight: Bending, points 23
14
Thermal Diffusivity, mm2/s 5.9
190