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SAE-AISI 1137 Steel vs. S39277 Stainless Steel

Both SAE-AISI 1137 steel and S39277 stainless steel are iron alloys. They have 61% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1137 steel and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 17
28
Fatigue Strength, MPa 250 to 400
480
Poisson's Ratio 0.29
0.27
Reduction in Area, % 34 to 39
57
Shear Modulus, GPa 73
80
Shear Strength, MPa 430 to 460
600
Tensile Strength: Ultimate (UTS), MPa 700 to 760
930
Tensile Strength: Yield (Proof), MPa 370 to 650
660

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
23
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
4.2
Embodied Energy, MJ/kg 19
59
Embodied Water, L/kg 48
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 100
240
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 1130
1070
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 27
33
Strength to Weight: Bending, points 22 to 24
27
Thermal Diffusivity, mm2/s 14
4.2
Thermal Shock Resistance, points 21 to 23
26

Alloy Composition

Carbon (C), % 0.32 to 0.39
0 to 0.025
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 97.8 to 98.3
56.8 to 64.3
Manganese (Mn), % 1.4 to 1.7
0 to 0.8
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
6.5 to 8.0
Nitrogen (N), % 0
0.23 to 0.33
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0.080 to 0.13
0 to 0.0020
Tungsten (W), % 0
0.8 to 1.2