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S15700 Stainless Steel vs. SAE-AISI O2 Steel

Both S15700 stainless steel and SAE-AISI O2 steel are iron alloys. They have 75% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is S15700 stainless steel and the bottom bar is SAE-AISI O2 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 77
72
Tensile Strength: Ultimate (UTS), MPa 1180 to 1890
640 to 2050

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
43
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.4
1.8
Embodied Energy, MJ/kg 47
26
Embodied Water, L/kg 140
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 42 to 67
23 to 73
Strength to Weight: Bending, points 32 to 43
21 to 46
Thermal Diffusivity, mm2/s 4.2
12
Thermal Shock Resistance, points 39 to 63
22 to 70

Alloy Composition

Aluminum (Al), % 0.75 to 1.5
0
Carbon (C), % 0 to 0.090
0.85 to 1.0
Chromium (Cr), % 14 to 16
0 to 0.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 69.6 to 76.8
95 to 97.8
Manganese (Mn), % 0 to 1.0
1.4 to 1.8
Molybdenum (Mo), % 2.0 to 3.0
0 to 0.3
Nickel (Ni), % 6.5 to 7.7
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0 to 0.3

Comparable Variants