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SAE-AISI 1137 Steel vs. S43037 Stainless Steel

Both SAE-AISI 1137 steel and S43037 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1137 steel and the bottom bar is S43037 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 17
25
Fatigue Strength, MPa 250 to 400
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 430 to 460
260
Tensile Strength: Ultimate (UTS), MPa 700 to 760
410
Tensile Strength: Yield (Proof), MPa 370 to 650
230

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
880
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 12
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
9.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.3
Embodied Energy, MJ/kg 19
32
Embodied Water, L/kg 48
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 100
88
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 1130
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 27
15
Strength to Weight: Bending, points 22 to 24
16
Thermal Diffusivity, mm2/s 14
6.7
Thermal Shock Resistance, points 21 to 23
14

Alloy Composition

Carbon (C), % 0.32 to 0.39
0 to 0.030
Chromium (Cr), % 0
16 to 19
Iron (Fe), % 97.8 to 98.3
77.9 to 83.9
Manganese (Mn), % 1.4 to 1.7
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0.080 to 0.13
0 to 0.030
Titanium (Ti), % 0
0.1 to 1.0