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SAE-AISI 6150 Steel vs. S38815 Stainless Steel

Both SAE-AISI 6150 steel and S38815 stainless steel are iron alloys. They have 64% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 6150 steel and the bottom bar is S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 350
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 15 to 23
34
Fatigue Strength, MPa 300 to 750
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 400 to 730
410
Tensile Strength: Ultimate (UTS), MPa 630 to 1200
610
Tensile Strength: Yield (Proof), MPa 420 to 1160
290

Thermal Properties

Latent Heat of Fusion, J/g 250
370
Maximum Temperature: Mechanical, °C 420
860
Melting Completion (Liquidus), °C 1460
1360
Melting Onset (Solidus), °C 1410
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 12 to 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
19
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 2.0
3.8
Embodied Energy, MJ/kg 28
54
Embodied Water, L/kg 51
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
170
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3590
220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 43
22
Strength to Weight: Bending, points 21 to 32
21
Thermal Shock Resistance, points 20 to 38
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0.48 to 0.53
0 to 0.030
Chromium (Cr), % 0.8 to 1.1
13 to 15
Copper (Cu), % 0
0.75 to 1.5
Iron (Fe), % 96.7 to 97.7
56.1 to 67
Manganese (Mn), % 0.7 to 0.9
0 to 2.0
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 0
13 to 17
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
5.5 to 6.5
Sulfur (S), % 0 to 0.040
0 to 0.020
Vanadium (V), % 0.15 to 0.3
0