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S41050 Stainless Steel vs. SAE-AISI A3 Steel

Both S41050 stainless steel and SAE-AISI A3 steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is S41050 stainless steel and the bottom bar is SAE-AISI A3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 470
700 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
37
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
9.7

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
6.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.9
4.4
Embodied Energy, MJ/kg 27
67
Embodied Water, L/kg 97
78

Common Calculations

PREN (Pitting Resistance) 12
8.9
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
25 to 77
Strength to Weight: Bending, points 17
23 to 48
Thermal Diffusivity, mm2/s 7.2
10
Thermal Shock Resistance, points 17
23 to 70

Alloy Composition

Carbon (C), % 0 to 0.040
1.2 to 1.3
Chromium (Cr), % 10.5 to 12.5
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 84.2 to 88.9
88.7 to 92
Manganese (Mn), % 0 to 1.0
0.4 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 0.6 to 1.1
0 to 0.3
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0.8 to 1.4