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SAE-AISI 6150 Steel vs. S41050 Stainless Steel

Both SAE-AISI 6150 steel and S41050 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 6150 steel and the bottom bar is S41050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 350
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 15 to 23
25
Fatigue Strength, MPa 300 to 750
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 400 to 730
300
Tensile Strength: Ultimate (UTS), MPa 630 to 1200
470
Tensile Strength: Yield (Proof), MPa 420 to 1160
230

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 420
720
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
27
Thermal Expansion, µm/m-K 12 to 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
7.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.9
Embodied Energy, MJ/kg 28
27
Embodied Water, L/kg 51
97

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
98
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3590
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 43
17
Strength to Weight: Bending, points 21 to 32
17
Thermal Diffusivity, mm2/s 13
7.2
Thermal Shock Resistance, points 20 to 38
17

Alloy Composition

Carbon (C), % 0.48 to 0.53
0 to 0.040
Chromium (Cr), % 0.8 to 1.1
10.5 to 12.5
Iron (Fe), % 96.7 to 97.7
84.2 to 88.9
Manganese (Mn), % 0.7 to 0.9
0 to 1.0
Nickel (Ni), % 0
0.6 to 1.1
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030
Vanadium (V), % 0.15 to 0.3
0