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AISI 201 Stainless Steel vs. S31277 Stainless Steel

Both AISI 201 stainless steel and S31277 stainless steel are iron alloys. They have 64% 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 AISI 201 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, % 4.6 to 51
45
Fatigue Strength, MPa 280 to 600
380
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Shear Strength, MPa 450 to 840
600
Tensile Strength: Ultimate (UTS), MPa 650 to 1450
860
Tensile Strength: Yield (Proof), MPa 300 to 1080
410

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 410
430
Maximum Temperature: Mechanical, °C 880
1100
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 17
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 38
90
Embodied Water, L/kg 140
220

Common Calculations

PREN (Pitting Resistance) 19
51
Resilience: Ultimate (Unit Rupture Work), MJ/m3 61 to 340
320
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 2970
410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23 to 52
29
Strength to Weight: Bending, points 22 to 37
25
Thermal Shock Resistance, points 14 to 32
19

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.020
Chromium (Cr), % 16 to 18
20.5 to 23
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 67.5 to 75
35.5 to 46.2
Manganese (Mn), % 5.5 to 7.5
0 to 3.0
Molybdenum (Mo), % 0
6.5 to 8.0
Nickel (Ni), % 3.5 to 5.5
26 to 28
Nitrogen (N), % 0 to 0.25
0.3 to 0.4
Phosphorus (P), % 0 to 0.060
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010