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S31730 Stainless Steel vs. SAE-AISI T6 Steel

Both S31730 stainless steel and SAE-AISI T6 steel are iron alloys. They have 63% of their average alloy composition in common. 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 S31730 stainless steel and the bottom bar is SAE-AISI T6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 540
880 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Melting Completion (Liquidus), °C 1430
1830
Melting Onset (Solidus), °C 1390
1770
Specific Heat Capacity, J/kg-K 470
400
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 24
70
Density, g/cm3 8.0
9.5
Embodied Carbon, kg CO2/kg material 4.6
11
Embodied Energy, MJ/kg 63
170
Embodied Water, L/kg 180
160

Common Calculations

PREN (Pitting Resistance) 30
39
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 19
26 to 63
Strength to Weight: Bending, points 18
21 to 39
Thermal Shock Resistance, points 12
26 to 64

Alloy Composition

Carbon (C), % 0 to 0.030
0.75 to 0.85
Chromium (Cr), % 17 to 19
4.0 to 4.8
Cobalt (Co), % 0
11 to 13
Copper (Cu), % 4.0 to 5.0
0 to 0.25
Iron (Fe), % 52.4 to 61
55.9 to 63.5
Manganese (Mn), % 0 to 2.0
0.2 to 0.4
Molybdenum (Mo), % 3.0 to 4.0
0.4 to 1.0
Nickel (Ni), % 15 to 16.5
0 to 0.3
Nitrogen (N), % 0 to 0.045
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 0
18.5 to 21
Vanadium (V), % 0
1.5 to 2.1