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S21800 Stainless Steel vs. EN 1.4405 Stainless Steel

Both S21800 stainless steel and EN 1.4405 stainless steel are iron alloys. They have 84% 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 1.4405 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 40
17
Fatigue Strength, MPa 330
370
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 740
860
Tensile Strength: Yield (Proof), MPa 390
610

Thermal Properties

Latent Heat of Fusion, J/g 340
280
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 900
870
Melting Completion (Liquidus), °C 1360
1450
Melting Onset (Solidus), °C 1310
1400
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 15
13
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.1
2.8
Embodied Energy, MJ/kg 45
39
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 19
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
130
Resilience: Unit (Modulus of Resilience), kJ/m3 390
950
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 27
31
Strength to Weight: Bending, points 24
26
Thermal Shock Resistance, points 17
29

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.060
Chromium (Cr), % 16 to 18
15 to 17
Iron (Fe), % 59.1 to 65.4
73.6 to 80.3
Manganese (Mn), % 7.0 to 9.0
0 to 1.0
Molybdenum (Mo), % 0
0.7 to 1.5
Nickel (Ni), % 8.0 to 9.0
4.0 to 6.0
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.060
0 to 0.035
Silicon (Si), % 3.5 to 4.5
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.025