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EN 1.3940 Stainless Steel vs. SAE-AISI 5160 Steel

Both EN 1.3940 stainless steel and SAE-AISI 5160 steel are iron alloys. They have 70% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.3940 stainless steel and the bottom bar is SAE-AISI 5160 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
12 to 18
Fatigue Strength, MPa 190
180 to 650
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 540
660 to 1150
Tensile Strength: Yield (Proof), MPa 240
280 to 1010

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 930
420
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
43
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 17
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
1.4
Embodied Energy, MJ/kg 47
19
Embodied Water, L/kg 150
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
73 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 150
200 to 2700
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
23 to 41
Strength to Weight: Bending, points 19
22 to 31
Thermal Diffusivity, mm2/s 4.1
12
Thermal Shock Resistance, points 16
19 to 34

Alloy Composition

Carbon (C), % 0 to 0.030
0.56 to 0.61
Chromium (Cr), % 16.5 to 18.5
0.7 to 0.9
Iron (Fe), % 64.2 to 71.4
97.1 to 97.8
Manganese (Mn), % 0 to 2.0
0.75 to 1.0
Nickel (Ni), % 12 to 14
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.020
0 to 0.040