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S31277 Stainless Steel vs. SAE-AISI O6 Steel

Both S31277 stainless steel and SAE-AISI O6 steel are iron alloys. They have 43% 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 S31277 stainless steel and the bottom bar is SAE-AISI O6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
180
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
71
Tensile Strength: Ultimate (UTS), MPa 860
670 to 2070

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.3
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 6.7
1.5
Embodied Energy, MJ/kg 90
21
Embodied Water, L/kg 220
47

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
24 to 74
Strength to Weight: Bending, points 25
22 to 47
Thermal Shock Resistance, points 19
22 to 69

Alloy Composition

Carbon (C), % 0 to 0.020
1.3 to 1.6
Chromium (Cr), % 20.5 to 23
0 to 0.3
Copper (Cu), % 0.5 to 1.5
0 to 0.25
Iron (Fe), % 35.5 to 46.2
94.6 to 97.7
Manganese (Mn), % 0 to 3.0
0.3 to 1.1
Molybdenum (Mo), % 6.5 to 8.0
0.2 to 0.3
Nickel (Ni), % 26 to 28
0 to 0.3
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
0.55 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.030