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S38815 Stainless Steel vs. ASTM B631 Class B

S38815 stainless steel belongs to the iron alloys classification, while ASTM B631 class B belongs to the otherwise unclassified metals. There are 12 material properties with values for both materials. Properties with values for just one material (22, in this case) are not shown.

For each property being compared, the top bar is S38815 stainless steel and the bottom bar is ASTM B631 class B.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 74
78 to 79

Thermal Properties

Latent Heat of Fusion, J/g 370
150
Melting Completion (Liquidus), °C 1360
2460 to 2480
Specific Heat Capacity, J/kg-K 500
170
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Density, g/cm3 7.5
14
Embodied Carbon, kg CO2/kg material 3.8
49
Embodied Energy, MJ/kg 54
760

Common Calculations

Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 25
14