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SAE-AISI 1140 Steel vs. EN 1.4841 Stainless Steel

Both SAE-AISI 1140 steel and EN 1.4841 stainless steel are iron alloys. They have 52% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1140 steel and the bottom bar is EN 1.4841 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 180
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14 to 18
32
Fatigue Strength, MPa 230 to 370
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Shear Strength, MPa 370 to 420
430
Tensile Strength: Ultimate (UTS), MPa 600 to 700
650
Tensile Strength: Yield (Proof), MPa 340 to 570
260

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 400
1150
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
25
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
4.3
Embodied Energy, MJ/kg 18
62
Embodied Water, L/kg 46
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 93
170
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 870
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 25
23
Strength to Weight: Bending, points 20 to 22
21
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 18 to 21
15

Alloy Composition

Carbon (C), % 0.37 to 0.44
0 to 0.2
Chromium (Cr), % 0
24 to 26
Iron (Fe), % 98.4 to 98.9
47.1 to 55.5
Manganese (Mn), % 0.7 to 1.0
0 to 2.0
Nickel (Ni), % 0
19 to 22
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
1.5 to 2.5
Sulfur (S), % 0.080 to 0.13
0 to 0.015