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EN 1.4123 Stainless Steel vs. SAE-AISI 1042 Steel

Both EN 1.4123 stainless steel and SAE-AISI 1042 steel are iron alloys. They have 82% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4123 stainless steel and the bottom bar is SAE-AISI 1042 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 720 to 810
620 to 700

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 840
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
52
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 10
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 4.2
1.4
Embodied Energy, MJ/kg 62
18
Embodied Water, L/kg 120
46

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 29
22 to 25
Strength to Weight: Bending, points 23 to 25
21 to 22
Thermal Diffusivity, mm2/s 6.3
14
Thermal Shock Resistance, points 26 to 29
20 to 22

Alloy Composition

Carbon (C), % 0.35 to 0.5
0.4 to 0.47
Chromium (Cr), % 14 to 16.5
0
Iron (Fe), % 76.7 to 84.6
98.5 to 99
Manganese (Mn), % 0 to 1.0
0.6 to 0.9
Molybdenum (Mo), % 1.0 to 2.5
0
Nickel (Ni), % 0 to 0.5
0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0 to 0.050
Vanadium (V), % 0 to 1.5
0