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EN 1.4855 Stainless Steel vs. EN 1.5918 Steel

Both EN 1.4855 stainless steel and EN 1.5918 steel are iron alloys. They have 51% of their average alloy composition in common. There are 23 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 1.4855 stainless steel and the bottom bar is EN 1.5918 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
160 to 190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 500
530 to 1390

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1050
440
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
43
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 34
3.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 5.9
1.6
Embodied Energy, MJ/kg 85
21
Embodied Water, L/kg 200
56

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
19 to 49
Strength to Weight: Bending, points 18
18 to 35
Thermal Diffusivity, mm2/s 3.7
12
Thermal Shock Resistance, points 11
15 to 41

Alloy Composition

Carbon (C), % 0.3 to 0.5
0.14 to 0.2
Chromium (Cr), % 23 to 25
1.4 to 1.7
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 42.6 to 51.9
94.9 to 96.6
Manganese (Mn), % 0 to 2.0
0.5 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 23 to 25
1.4 to 1.7
Niobium (Nb), % 0.8 to 1.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 1.0 to 2.5
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.025