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EN 1.4592 Stainless Steel vs. SAE-AISI 1140 Steel

Both EN 1.4592 stainless steel and SAE-AISI 1140 steel are iron alloys. They have 66% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4592 stainless steel and the bottom bar is SAE-AISI 1140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 23
14 to 18
Fatigue Strength, MPa 340
230 to 370
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 82
72
Shear Strength, MPa 400
370 to 420
Tensile Strength: Ultimate (UTS), MPa 630
600 to 700
Tensile Strength: Yield (Proof), MPa 500
340 to 570

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
51
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 18
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.8
1.4
Embodied Energy, MJ/kg 52
18
Embodied Water, L/kg 180
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
89 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 610
310 to 870
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 23
21 to 25
Strength to Weight: Bending, points 21
20 to 22
Thermal Diffusivity, mm2/s 4.6
14
Thermal Shock Resistance, points 20
18 to 21

Alloy Composition

Carbon (C), % 0 to 0.025
0.37 to 0.44
Chromium (Cr), % 28 to 30
0
Iron (Fe), % 62.6 to 68.4
98.4 to 98.9
Manganese (Mn), % 0 to 1.0
0.7 to 1.0
Molybdenum (Mo), % 3.5 to 4.5
0
Nitrogen (N), % 0 to 0.045
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.010
0.080 to 0.13
Titanium (Ti), % 0.15 to 0.8
0