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EN 1.4057 Stainless Steel vs. EN 1.8151 Steel

Both EN 1.4057 stainless steel and EN 1.8151 steel are iron alloys. They have 83% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.4057 stainless steel and the bottom bar is EN 1.8151 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 840 to 980
670 to 1940

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Mechanical, °C 850
410
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
50
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.2
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.2
1.8
Embodied Energy, MJ/kg 32
25
Embodied Water, L/kg 120
49

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30 to 35
24 to 70
Strength to Weight: Bending, points 26 to 28
22 to 45
Thermal Diffusivity, mm2/s 6.7
14
Thermal Shock Resistance, points 30 to 35
20 to 58

Alloy Composition

Carbon (C), % 0.12 to 0.22
0.4 to 0.5
Chromium (Cr), % 15 to 17
0.4 to 0.8
Iron (Fe), % 77.7 to 83.4
95.9 to 97.2
Manganese (Mn), % 0 to 1.5
0.6 to 0.9
Nickel (Ni), % 1.5 to 2.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
1.3 to 1.7
Sulfur (S), % 0 to 0.015
0 to 0.025
Vanadium (V), % 0
0.1 to 0.2

Comparable Variants