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S21603 Stainless Steel vs. EN 1.5918 Steel

Both S21603 stainless steel and EN 1.5918 steel are iron alloys. They have 67% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is S21603 stainless steel and the bottom bar is EN 1.5918 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
160 to 190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 690
530 to 1390

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 990
440
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 17
3.4
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.6
1.6
Embodied Energy, MJ/kg 50
21
Embodied Water, L/kg 160
56

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
19 to 49
Strength to Weight: Bending, points 22
18 to 35
Thermal Shock Resistance, points 15
15 to 41

Alloy Composition

Carbon (C), % 0 to 0.030
0.14 to 0.2
Chromium (Cr), % 17.5 to 22
1.4 to 1.7
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 57.6 to 67.8
94.9 to 96.6
Manganese (Mn), % 7.5 to 9.0
0.5 to 0.9
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 5.0 to 7.0
1.4 to 1.7
Nitrogen (N), % 0.25 to 0.5
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 0.75
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.025