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SAE-AISI 1137 Steel vs. S35125 Stainless Steel

Both SAE-AISI 1137 steel and S35125 stainless steel are iron alloys. They have 42% of their average alloy composition in common. There are 30 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 S35125 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 17
39
Fatigue Strength, MPa 250 to 400
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 430 to 460
370
Tensile Strength: Ultimate (UTS), MPa 700 to 760
540
Tensile Strength: Yield (Proof), MPa 370 to 650
230

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 12
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
36
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.4
6.4
Embodied Energy, MJ/kg 19
89
Embodied Water, L/kg 48
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 100
170
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 1130
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 27
19
Strength to Weight: Bending, points 22 to 24
18
Thermal Diffusivity, mm2/s 14
3.1
Thermal Shock Resistance, points 21 to 23
12

Alloy Composition

Carbon (C), % 0.32 to 0.39
0 to 0.1
Chromium (Cr), % 0
20 to 23
Iron (Fe), % 97.8 to 98.3
36.2 to 45.8
Manganese (Mn), % 1.4 to 1.7
1.0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
31 to 35
Niobium (Nb), % 0
0.25 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0.080 to 0.13
0 to 0.015