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S21800 Stainless Steel vs. EN 1.8869 Steel

Both S21800 stainless steel and EN 1.8869 steel are iron alloys. They have 64% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is S21800 stainless steel and the bottom bar is EN 1.8869 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 40
25
Fatigue Strength, MPa 330
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 510
350
Tensile Strength: Ultimate (UTS), MPa 740
540
Tensile Strength: Yield (Proof), MPa 390
360

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Maximum Temperature: Mechanical, °C 900
410
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
2.4
Density, g/cm3 7.5
7.9
Embodied Carbon, kg CO2/kg material 3.1
1.6
Embodied Energy, MJ/kg 45
21
Embodied Water, L/kg 150
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
120
Resilience: Unit (Modulus of Resilience), kJ/m3 390
340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 27
19
Strength to Weight: Bending, points 24
19
Thermal Shock Resistance, points 17
16

Alloy Composition

Boron (B), % 0
0 to 0.0050
Carbon (C), % 0 to 0.1
0 to 0.16
Chromium (Cr), % 16 to 18
0 to 0.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 59.1 to 65.4
96.4 to 100
Manganese (Mn), % 7.0 to 9.0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.25
Nickel (Ni), % 8.0 to 9.0
0 to 0.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0.080 to 0.18
0 to 0.015
Phosphorus (P), % 0 to 0.060
0 to 0.020
Silicon (Si), % 3.5 to 4.5
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.0050
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.060
Zirconium (Zr), % 0
0 to 0.050