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EN 1.4310 Stainless Steel vs. EN 1.5918 Steel

Both EN 1.4310 stainless steel and EN 1.5918 steel are iron alloys. They have 76% 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 1.4310 stainless steel and the bottom bar is EN 1.5918 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 270
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 730 to 900
530 to 1390

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 910
440
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
43
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 14
3.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.9
1.6
Embodied Energy, MJ/kg 42
21
Embodied Water, L/kg 140
56

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 32
19 to 49
Strength to Weight: Bending, points 23 to 27
18 to 35
Thermal Diffusivity, mm2/s 4.0
12
Thermal Shock Resistance, points 15 to 18
15 to 41

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.14 to 0.2
Chromium (Cr), % 16 to 19
1.4 to 1.7
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 66.4 to 78
94.9 to 96.6
Manganese (Mn), % 0 to 2.0
0.5 to 0.9
Molybdenum (Mo), % 0 to 0.8
0
Nickel (Ni), % 6.0 to 9.5
1.4 to 1.7
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 2.0
0 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.025