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S31277 Stainless Steel vs. S32050 Stainless Steel

Both S31277 stainless steel and S32050 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 92% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S31277 stainless steel and the bottom bar is S32050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 45
46
Fatigue Strength, MPa 380
340
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
81
Shear Strength, MPa 600
540
Tensile Strength: Ultimate (UTS), MPa 860
770
Tensile Strength: Yield (Proof), MPa 410
370

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 430
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 36
31
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 6.7
6.0
Embodied Energy, MJ/kg 90
81
Embodied Water, L/kg 220
210

Common Calculations

PREN (Pitting Resistance) 51
48
Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
290
Resilience: Unit (Modulus of Resilience), kJ/m3 410
330
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
27
Strength to Weight: Bending, points 25
23
Thermal Shock Resistance, points 19
17

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 20.5 to 23
22 to 24
Copper (Cu), % 0.5 to 1.5
0 to 0.4
Iron (Fe), % 35.5 to 46.2
43.1 to 51.8
Manganese (Mn), % 0 to 3.0
0 to 1.5
Molybdenum (Mo), % 6.5 to 8.0
6.0 to 6.6
Nickel (Ni), % 26 to 28
20 to 23
Nitrogen (N), % 0.3 to 0.4
0.21 to 0.32
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.020