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S35135 Stainless Steel vs. SAE-AISI O7 Steel

Both S35135 stainless steel and SAE-AISI O7 steel are iron alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is S35135 stainless steel and the bottom bar is SAE-AISI O7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 590
680 to 2110

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Melting Completion (Liquidus), °C 1430
1480
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 37
6.0
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 6.8
2.3
Embodied Energy, MJ/kg 94
33
Embodied Water, L/kg 220
52

Common Calculations

PREN (Pitting Resistance) 37
3.6
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
24 to 74
Strength to Weight: Bending, points 19
22 to 46
Thermal Shock Resistance, points 13
23 to 70

Alloy Composition

Carbon (C), % 0 to 0.080
1.1 to 1.3
Chromium (Cr), % 20 to 25
0.35 to 0.85
Copper (Cu), % 0 to 0.75
0 to 0.25
Iron (Fe), % 28.3 to 45
92.9 to 97.6
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 4.0 to 4.8
0 to 0.3
Nickel (Ni), % 30 to 38
0 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0.6 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0.4 to 1.0
0
Tungsten (W), % 0
1.0 to 2.0
Vanadium (V), % 0
0 to 0.4