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S21800 Stainless Steel vs. EN 1.4415 Stainless Steel

Both S21800 stainless steel and EN 1.4415 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S21800 stainless steel and the bottom bar is EN 1.4415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 40
17 to 20
Fatigue Strength, MPa 330
470 to 510
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 510
520 to 570
Tensile Strength: Ultimate (UTS), MPa 740
830 to 930
Tensile Strength: Yield (Proof), MPa 390
730 to 840

Thermal Properties

Latent Heat of Fusion, J/g 340
280
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 900
790
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
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 15
13
Density, g/cm3 7.5
7.9
Embodied Carbon, kg CO2/kg material 3.1
3.6
Embodied Energy, MJ/kg 45
51
Embodied Water, L/kg 150
120

Common Calculations

PREN (Pitting Resistance) 19
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
150 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 390
1350 to 1790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 27
29 to 33
Strength to Weight: Bending, points 24
25 to 27
Thermal Shock Resistance, points 17
30 to 34

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 16 to 18
11.5 to 13.5
Iron (Fe), % 59.1 to 65.4
75.9 to 82.4
Manganese (Mn), % 7.0 to 9.0
0 to 0.5
Molybdenum (Mo), % 0
1.5 to 2.5
Nickel (Ni), % 8.0 to 9.0
4.5 to 6.5
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 3.5 to 4.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0 to 0.010
Vanadium (V), % 0
0.1 to 0.5