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SAE-AISI 1040 Steel vs. EN 1.4592 Stainless Steel

Both SAE-AISI 1040 steel and EN 1.4592 stainless 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 SAE-AISI 1040 steel and the bottom bar is EN 1.4592 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 13 to 20
23
Fatigue Strength, MPa 220 to 340
340
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
82
Shear Strength, MPa 350 to 390
400
Tensile Strength: Ultimate (UTS), MPa 570 to 640
630
Tensile Strength: Yield (Proof), MPa 320 to 530
500

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
17
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
3.0

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 96
130
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 760
610
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 20 to 23
23
Strength to Weight: Bending, points 19 to 21
21
Thermal Diffusivity, mm2/s 14
4.6
Thermal Shock Resistance, points 18 to 20
20

Alloy Composition

Carbon (C), % 0.37 to 0.44
0 to 0.025
Chromium (Cr), % 0
28 to 30
Iron (Fe), % 98.6 to 99.03
62.6 to 68.4
Manganese (Mn), % 0.6 to 0.9
0 to 1.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.010
Titanium (Ti), % 0
0.15 to 0.8