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SAE-AISI 5140 Steel vs. S30601 Stainless Steel

Both SAE-AISI 5140 steel and S30601 stainless steel are iron alloys. They have 60% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 5140 steel and the bottom bar is S30601 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 290
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 29
37
Fatigue Strength, MPa 220 to 570
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 360 to 600
450
Tensile Strength: Ultimate (UTS), MPa 560 to 970
660
Tensile Strength: Yield (Proof), MPa 290 to 840
300

Thermal Properties

Latent Heat of Fusion, J/g 250
370
Maximum Temperature: Mechanical, °C 420
950
Melting Completion (Liquidus), °C 1460
1360
Melting Onset (Solidus), °C 1420
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
20
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 1.4
3.9
Embodied Energy, MJ/kg 19
55
Embodied Water, L/kg 49
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76 to 180
200
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1880
230
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20 to 34
24
Strength to Weight: Bending, points 19 to 28
22
Thermal Shock Resistance, points 16 to 29
16

Alloy Composition

Carbon (C), % 0.38 to 0.43
0 to 0.015
Chromium (Cr), % 0.7 to 0.9
17 to 18
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 97.3 to 98.1
56.9 to 60.5
Manganese (Mn), % 0.7 to 0.9
0.5 to 0.8
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0
17 to 18
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
5.0 to 5.6
Sulfur (S), % 0 to 0.040
0 to 0.013