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SAE-AISI 1137 Steel vs. S15500 Stainless Steel

Both SAE-AISI 1137 steel and S15500 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 32 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 S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
290 to 430
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
6.8 to 16
Fatigue Strength, MPa 250 to 400
350 to 650
Poisson's Ratio 0.29
0.28
Reduction in Area, % 34 to 39
17 to 40
Shear Modulus, GPa 73
75
Shear Strength, MPa 430 to 460
540 to 870
Tensile Strength: Ultimate (UTS), MPa 700 to 760
890 to 1490
Tensile Strength: Yield (Proof), MPa 370 to 650
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
820
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
17
Thermal Expansion, µm/m-K 13
11

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
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 19
39
Embodied Water, L/kg 48
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 100
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 1130
890 to 4460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 27
32 to 53
Strength to Weight: Bending, points 22 to 24
26 to 37
Thermal Diffusivity, mm2/s 14
4.6
Thermal Shock Resistance, points 21 to 23
30 to 50

Alloy Composition

Carbon (C), % 0.32 to 0.39
0 to 0.070
Chromium (Cr), % 0
14 to 15.5
Copper (Cu), % 0
2.5 to 4.5
Iron (Fe), % 97.8 to 98.3
71.9 to 79.9
Manganese (Mn), % 1.4 to 1.7
0 to 1.0
Nickel (Ni), % 0
3.5 to 5.5
Niobium (Nb), % 0
0.15 to 0.45
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