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S44401 Stainless Steel vs. SAE-AISI 6150 Steel

Both S44401 stainless steel and SAE-AISI 6150 steel are iron alloys. They have 79% of their average alloy composition in common. There are 30 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 S44401 stainless steel and the bottom bar is SAE-AISI 6150 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 21
15 to 23
Fatigue Strength, MPa 200
300 to 750
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 300
400 to 730
Tensile Strength: Ultimate (UTS), MPa 480
630 to 1200
Tensile Strength: Yield (Proof), MPa 300
420 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 930
420
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 22
46
Thermal Expansion, µm/m-K 10
12 to 13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.9
2.0
Embodied Energy, MJ/kg 40
28
Embodied Water, L/kg 130
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
130 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 230
460 to 3590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
22 to 43
Strength to Weight: Bending, points 18
21 to 32
Thermal Diffusivity, mm2/s 5.9
13
Thermal Shock Resistance, points 17
20 to 38

Alloy Composition

Carbon (C), % 0 to 0.025
0.48 to 0.53
Chromium (Cr), % 17.5 to 19.5
0.8 to 1.1
Iron (Fe), % 75.1 to 80.6
96.7 to 97.7
Manganese (Mn), % 0 to 1.0
0.7 to 0.9
Molybdenum (Mo), % 1.8 to 2.5
0
Nickel (Ni), % 0 to 1.0
0
Nitrogen (N), % 0 to 0.035
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040
Titanium (Ti), % 0.2 to 0.8
0
Vanadium (V), % 0
0.15 to 0.3