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S21800 Stainless Steel vs. EN 1.3558 Steel

Both S21800 stainless steel and EN 1.3558 steel are iron alloys. They have 67% 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 1.3558 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
230
Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 740
770

Thermal Properties

Latent Heat of Fusion, J/g 340
240
Maximum Temperature: Mechanical, °C 900
490
Melting Completion (Liquidus), °C 1360
1810
Melting Onset (Solidus), °C 1310
1760
Specific Heat Capacity, J/kg-K 500
410
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 15
45
Density, g/cm3 7.5
9.3
Embodied Carbon, kg CO2/kg material 3.1
8.4
Embodied Energy, MJ/kg 45
130
Embodied Water, L/kg 150
90

Common Calculations

PREN (Pitting Resistance) 19
35
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 26
21
Strength to Weight: Axial, points 27
23
Strength to Weight: Bending, points 24
20
Thermal Shock Resistance, points 17
22

Alloy Composition

Carbon (C), % 0 to 0.1
0.7 to 0.8
Chromium (Cr), % 16 to 18
3.9 to 4.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 59.1 to 65.4
73.7 to 77.6
Manganese (Mn), % 7.0 to 9.0
0 to 0.4
Molybdenum (Mo), % 0
0 to 0.6
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 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0
17.5 to 19
Vanadium (V), % 0
1.0 to 1.3