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SAE-AISI 1050 Steel vs. S41425 Stainless Steel

Both SAE-AISI 1050 steel and S41425 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1050 steel and the bottom bar is S41425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 220
280
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 17
17
Fatigue Strength, MPa 260 to 400
450
Poisson's Ratio 0.29
0.28
Reduction in Area, % 34 to 45
51
Shear Modulus, GPa 72
77
Shear Strength, MPa 430 to 470
570
Tensile Strength: Ultimate (UTS), MPa 690 to 790
920
Tensile Strength: Yield (Proof), MPa 390 to 650
750

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
810
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
16
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
13
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
2.9
Embodied Energy, MJ/kg 18
40
Embodied Water, L/kg 46
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 100
150
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 1130
1420
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 28
33
Strength to Weight: Bending, points 22 to 24
27
Thermal Diffusivity, mm2/s 14
4.4
Thermal Shock Resistance, points 22 to 25
33

Alloy Composition

Carbon (C), % 0.48 to 0.55
0 to 0.050
Chromium (Cr), % 0
12 to 15
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 98.5 to 98.9
74 to 81.9
Manganese (Mn), % 0.6 to 0.9
0.5 to 1.0
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0
4.0 to 7.0
Nitrogen (N), % 0
0.060 to 0.12
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.0050