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EN 1.3558 Steel vs. S21800 Stainless Steel

Both EN 1.3558 steel and S21800 stainless 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 EN 1.3558 steel and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

Carbon (C), % 0.7 to 0.8
0 to 0.1
Chromium (Cr), % 3.9 to 4.3
16 to 18
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 73.7 to 77.6
59.1 to 65.4
Manganese (Mn), % 0 to 0.4
7.0 to 9.0
Molybdenum (Mo), % 0 to 0.6
0
Nickel (Ni), % 0
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.025
0 to 0.060
Silicon (Si), % 0 to 0.4
3.5 to 4.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 1.0 to 1.3
0