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EN 1.3975 Stainless Steel vs. SAE-AISI O2 Steel

Both EN 1.3975 stainless steel and SAE-AISI O2 steel are iron alloys. They have 64% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is EN 1.3975 stainless steel and the bottom bar is SAE-AISI O2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Tensile Strength: Ultimate (UTS), MPa 660
640 to 2050

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Melting Completion (Liquidus), °C 1360
1450
Melting Onset (Solidus), °C 1320
1410
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.4
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.3
1.8
Embodied Energy, MJ/kg 47
26
Embodied Water, L/kg 150
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 24
23 to 73
Strength to Weight: Bending, points 22
21 to 46
Thermal Shock Resistance, points 15
22 to 70

Alloy Composition

Carbon (C), % 0 to 0.050
0.85 to 1.0
Chromium (Cr), % 16 to 18
0 to 0.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 58.2 to 65.4
95 to 97.8
Manganese (Mn), % 7.0 to 9.0
1.4 to 1.8
Molybdenum (Mo), % 0 to 1.0
0 to 0.3
Nickel (Ni), % 8.0 to 9.0
0 to 0.3
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 3.5 to 4.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0 to 0.3