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EN 1.5662 Steel vs. S21800 Stainless Steel

Both EN 1.5662 steel and S21800 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.5662 steel and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 230
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
40
Fatigue Strength, MPa 380 to 450
330
Poisson's Ratio 0.29
0.28
Reduction in Area, % 56 to 57
62
Shear Modulus, GPa 73
75
Shear Strength, MPa 460 to 470
510
Tensile Strength: Ultimate (UTS), MPa 740 to 750
740
Tensile Strength: Yield (Proof), MPa 550 to 660
390

Thermal Properties

Latent Heat of Fusion, J/g 250
340
Maximum Temperature: Mechanical, °C 430
900
Melting Completion (Liquidus), °C 1460
1360
Melting Onset (Solidus), °C 1410
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
15
Density, g/cm3 8.0
7.5
Embodied Carbon, kg CO2/kg material 2.3
3.1
Embodied Energy, MJ/kg 31
45
Embodied Water, L/kg 63
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
250
Resilience: Unit (Modulus of Resilience), kJ/m3 810 to 1150
390
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 26
27
Strength to Weight: Bending, points 23
24
Thermal Shock Resistance, points 22
17

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.1
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 88.6 to 91.2
59.1 to 65.4
Manganese (Mn), % 0.3 to 0.8
7.0 to 9.0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 8.5 to 10
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.020
0 to 0.060
Silicon (Si), % 0 to 0.35
3.5 to 4.5
Sulfur (S), % 0 to 0.0050
0 to 0.030
Vanadium (V), % 0 to 0.050
0