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EN 1.5026 Steel vs. EN 1.3940 Stainless Steel

Both EN 1.5026 steel and EN 1.3940 stainless steel are iron alloys. They have 69% of their average alloy composition in common. There are 24 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 1.5026 steel and the bottom bar is EN 1.3940 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Tensile Strength: Ultimate (UTS), MPa 660 to 1980
540

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Mechanical, °C 400
930
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 47
15
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
17
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.5
3.3
Embodied Energy, MJ/kg 19
47
Embodied Water, L/kg 46
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 71
19
Strength to Weight: Bending, points 22 to 45
19
Thermal Diffusivity, mm2/s 13
4.1
Thermal Shock Resistance, points 20 to 60
16

Alloy Composition

Carbon (C), % 0.52 to 0.6
0 to 0.030
Chromium (Cr), % 0
16.5 to 18.5
Iron (Fe), % 96.5 to 97.3
64.2 to 71.4
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Nickel (Ni), % 0
12 to 14
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 1.6 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.020