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S21800 Stainless Steel vs. EN 1.4477 Stainless Steel

Both S21800 stainless steel and EN 1.4477 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S21800 stainless steel and the bottom bar is EN 1.4477 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
270
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 40
22 to 23
Fatigue Strength, MPa 330
420 to 490
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
81
Shear Strength, MPa 510
550 to 580
Tensile Strength: Ultimate (UTS), MPa 740
880 to 930
Tensile Strength: Yield (Proof), MPa 390
620 to 730

Thermal Properties

Latent Heat of Fusion, J/g 340
300
Maximum Temperature: Corrosion, °C 410
460
Maximum Temperature: Mechanical, °C 900
1100
Melting Completion (Liquidus), °C 1360
1430
Melting Onset (Solidus), °C 1310
1380
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 15
20
Density, g/cm3 7.5
7.7
Embodied Carbon, kg CO2/kg material 3.1
3.7
Embodied Energy, MJ/kg 45
52
Embodied Water, L/kg 150
190

Common Calculations

PREN (Pitting Resistance) 19
41
Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
180 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 390
940 to 1290
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 27
31 to 33
Strength to Weight: Bending, points 24
26 to 27
Thermal Shock Resistance, points 17
23 to 25

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 16 to 18
28 to 30
Copper (Cu), % 0
0 to 0.8
Iron (Fe), % 59.1 to 65.4
56.6 to 63.6
Manganese (Mn), % 7.0 to 9.0
0.8 to 1.5
Molybdenum (Mo), % 0
1.5 to 2.6
Nickel (Ni), % 8.0 to 9.0
5.8 to 7.5
Nitrogen (N), % 0.080 to 0.18
0.3 to 0.4
Phosphorus (P), % 0 to 0.060
0 to 0.030
Silicon (Si), % 3.5 to 4.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015