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SAE-AISI 1137 Steel vs. AISI 201 Stainless Steel

Both SAE-AISI 1137 steel and AISI 201 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1137 steel and the bottom bar is AISI 201 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
200 to 440
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 17
4.6 to 51
Fatigue Strength, MPa 250 to 400
280 to 600
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 430 to 460
450 to 840
Tensile Strength: Ultimate (UTS), MPa 700 to 760
650 to 1450
Tensile Strength: Yield (Proof), MPa 370 to 650
300 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
880
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.6
Embodied Energy, MJ/kg 19
38
Embodied Water, L/kg 48
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 100
61 to 340
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 1130
230 to 2970
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 27
23 to 52
Strength to Weight: Bending, points 22 to 24
22 to 37
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 21 to 23
14 to 32

Alloy Composition

Carbon (C), % 0.32 to 0.39
0 to 0.15
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 97.8 to 98.3
67.5 to 75
Manganese (Mn), % 1.4 to 1.7
5.5 to 7.5
Nickel (Ni), % 0
3.5 to 5.5
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0.080 to 0.13
0 to 0.030