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EN 1.4857 Stainless Steel vs. EN 1.7027 Steel

Both EN 1.4857 stainless steel and EN 1.7027 steel are iron alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4857 stainless steel and the bottom bar is EN 1.7027 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 500
490 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1370
1460
Melting Onset (Solidus), °C 1320
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
45
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 34
2.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.7
1.4
Embodied Energy, MJ/kg 81
19
Embodied Water, L/kg 220
51

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
17 to 52
Strength to Weight: Bending, points 18
18 to 36
Thermal Diffusivity, mm2/s 3.4
12
Thermal Shock Resistance, points 11
14 to 43

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0.3 to 0.5
0.17 to 0.23
Chromium (Cr), % 24 to 27
0.9 to 1.2
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 31.4 to 41.7
97.1 to 98.5
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 33 to 36
0
Oxygen (O), % 0
0 to 0.0020
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 1.0 to 2.5
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.030