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EN 1.5918 Steel vs. EN 1.4864 Stainless Steel

Both EN 1.5918 steel and EN 1.4864 stainless steel are iron alloys. They have 50% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.5918 steel and the bottom bar is EN 1.4864 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 190
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
75
Tensile Strength: Ultimate (UTS), MPa 530 to 1390
650

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 43
13
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
30
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.6
5.3
Embodied Energy, MJ/kg 21
75
Embodied Water, L/kg 56
180

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19 to 49
23
Strength to Weight: Bending, points 18 to 35
21
Thermal Diffusivity, mm2/s 12
3.3
Thermal Shock Resistance, points 15 to 41
17

Alloy Composition

Carbon (C), % 0.14 to 0.2
0 to 0.15
Chromium (Cr), % 1.4 to 1.7
15 to 17
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 94.9 to 96.6
41.7 to 51
Manganese (Mn), % 0.5 to 0.9
0 to 2.0
Nickel (Ni), % 1.4 to 1.7
33 to 37
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.3
1.0 to 2.0
Sulfur (S), % 0 to 0.025
0 to 0.015