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SAE-AISI 1151 Steel vs. S35140 Stainless Steel

Both SAE-AISI 1151 steel and S35140 stainless steel are iron alloys. They have 49% 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 1151 steel and the bottom bar is S35140 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 220
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 17
34
Fatigue Strength, MPa 260 to 410
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Shear Strength, MPa 430 to 480
460
Tensile Strength: Ultimate (UTS), MPa 710 to 800
690
Tensile Strength: Yield (Proof), MPa 390 to 660
310

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
14
Thermal Expansion, µm/m-K 12
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 1.8
31
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.4
5.5
Embodied Energy, MJ/kg 18
78
Embodied Water, L/kg 46
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 100
190
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 1170
250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 28
24
Strength to Weight: Bending, points 22 to 24
22
Thermal Diffusivity, mm2/s 14
3.7
Thermal Shock Resistance, points 22 to 25
16

Alloy Composition

Carbon (C), % 0.48 to 0.55
0 to 0.1
Chromium (Cr), % 0
20 to 22
Iron (Fe), % 98.3 to 98.7
44.1 to 52.7
Manganese (Mn), % 0.7 to 1.0
1.0 to 3.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 0
25 to 27
Niobium (Nb), % 0
0.25 to 0.75
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0.080 to 0.13
0 to 0.030