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AISI 304 Stainless Steel vs. ASTM B631 Class C

AISI 304 stainless steel belongs to the iron alloys classification, while ASTM B631 class C belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.

For each property being compared, the top bar is AISI 304 stainless steel and the bottom bar is ASTM B631 class C.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180 to 190
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
66 to 71

Thermal Properties

Latent Heat of Fusion, J/g 290
140 to 150
Melting Completion (Liquidus), °C 1450
2090 to 2230
Specific Heat Capacity, J/kg-K 480
180
Thermal Conductivity, W/m-K 16
450 to 490
Thermal Expansion, µm/m-K 17
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
55 to 63
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
36 to 43

Otherwise Unclassified Properties

Density, g/cm3 7.8
13 to 14
Embodied Carbon, kg CO2/kg material 3.0
55 to 59
Embodied Energy, MJ/kg 43
860 to 920

Common Calculations

Stiffness to Weight: Axial, points 14
7.4 to 7.6
Stiffness to Weight: Bending, points 25
14
Thermal Diffusivity, mm2/s 4.2
180 to 200