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S31277 Stainless Steel vs. SAE-AISI T1 Steel

Both S31277 stainless steel and SAE-AISI T1 steel are iron alloys. They have 46% of their average alloy composition in common. There are 20 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 S31277 stainless steel and the bottom bar is SAE-AISI T1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 860
770 to 2130

Thermal Properties

Latent Heat of Fusion, J/g 310
240
Melting Completion (Liquidus), °C 1460
1810
Melting Onset (Solidus), °C 1410
1750
Specific Heat Capacity, J/kg-K 460
410
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 36
45
Density, g/cm3 8.1
9.3
Embodied Carbon, kg CO2/kg material 6.7
8.2
Embodied Energy, MJ/kg 90
130
Embodied Water, L/kg 220
90

Common Calculations

PREN (Pitting Resistance) 51
34
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 29
23 to 64
Strength to Weight: Bending, points 25
20 to 40
Thermal Shock Resistance, points 19
23 to 64

Alloy Composition

Carbon (C), % 0 to 0.020
0.65 to 0.8
Chromium (Cr), % 20.5 to 23
3.8 to 4.5
Copper (Cu), % 0.5 to 1.5
0 to 0.25
Iron (Fe), % 35.5 to 46.2
73.2 to 77.2
Manganese (Mn), % 0 to 3.0
0.1 to 0.4
Molybdenum (Mo), % 6.5 to 8.0
0
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
0.2 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 0
17.3 to 18.8
Vanadium (V), % 0
0.9 to 1.3