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S21800 Stainless Steel vs. EN 1.5515 Steel

Both S21800 stainless steel and EN 1.5515 steel are iron alloys. They have 63% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is S21800 stainless steel and the bottom bar is EN 1.5515 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
150 to 170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Reduction in Area, % 62
64 to 69
Shear Modulus, GPa 75
72
Tensile Strength: Ultimate (UTS), MPa 740
490 to 1760

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Maximum Temperature: Mechanical, °C 900
400
Melting Completion (Liquidus), °C 1360
1460
Melting Onset (Solidus), °C 1310
1420
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 15
1.9
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.4
Embodied Energy, MJ/kg 45
19
Embodied Water, L/kg 150
47

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 27
17 to 63
Strength to Weight: Bending, points 24
18 to 41
Thermal Shock Resistance, points 17
14 to 52

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0 to 0.1
0.35 to 0.4
Chromium (Cr), % 16 to 18
0 to 0.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 59.1 to 65.4
97.8 to 98.9
Manganese (Mn), % 7.0 to 9.0
0.6 to 0.9
Nickel (Ni), % 8.0 to 9.0
0
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.060
0 to 0.025
Silicon (Si), % 3.5 to 4.5
0.15 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.025