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S82011 Stainless Steel vs. S31277 Stainless Steel

Both S82011 stainless steel and S31277 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 67% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S82011 stainless steel and the bottom bar is S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
45
Fatigue Strength, MPa 410
380
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
80
Shear Strength, MPa 490
600
Tensile Strength: Ultimate (UTS), MPa 730
860
Tensile Strength: Yield (Proof), MPa 510
410

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 430
430
Maximum Temperature: Mechanical, °C 1010
1100
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 12
36
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 2.6
6.7
Embodied Energy, MJ/kg 37
90
Embodied Water, L/kg 150
220

Common Calculations

PREN (Pitting Resistance) 27
51
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
320
Resilience: Unit (Modulus of Resilience), kJ/m3 660
410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
29
Strength to Weight: Bending, points 24
25
Thermal Shock Resistance, points 20
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 20.5 to 23.5
20.5 to 23
Copper (Cu), % 0 to 0.5
0.5 to 1.5
Iron (Fe), % 68.6 to 76.3
35.5 to 46.2
Manganese (Mn), % 2.0 to 3.0
0 to 3.0
Molybdenum (Mo), % 0.1 to 1.0
6.5 to 8.0
Nickel (Ni), % 1.0 to 2.0
26 to 28
Nitrogen (N), % 0.15 to 0.27
0.3 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.010