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ASTM B631 Class B vs. EN 1.4490 Stainless Steel

ASTM B631 class B belongs to the otherwise unclassified metals classification, while EN 1.4490 stainless steel belongs to the iron alloys. There are 16 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 B and the bottom bar is EN 1.4490 stainless steel.

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
78

Thermal Properties

Latent Heat of Fusion, J/g 150
300
Melting Completion (Liquidus), °C 2460 to 2480
1440
Specific Heat Capacity, J/kg-K 170
480
Thermal Conductivity, W/m-K 450
15
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50 to 53
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 32 to 34
2.5

Otherwise Unclassified Properties

Density, g/cm3 14
7.8
Embodied Carbon, kg CO2/kg material 49
3.7
Embodied Energy, MJ/kg 760
52

Common Calculations

Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 14
25
Thermal Diffusivity, mm2/s 190
4.1