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S21800 Stainless Steel vs. EN 1.4612 Stainless Steel

Both S21800 stainless steel and EN 1.4612 stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S21800 stainless steel and the bottom bar is EN 1.4612 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 40
11
Fatigue Strength, MPa 330
860 to 950
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 510
1010 to 1110
Tensile Strength: Ultimate (UTS), MPa 740
1690 to 1850
Tensile Strength: Yield (Proof), MPa 390
1570 to 1730

Thermal Properties

Latent Heat of Fusion, J/g 340
280
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 900
790
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
16
Density, g/cm3 7.5
7.9
Embodied Carbon, kg CO2/kg material 3.1
3.6
Embodied Energy, MJ/kg 45
50
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 19
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
190 to 210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 27
60 to 65
Strength to Weight: Bending, points 24
40 to 43
Thermal Shock Resistance, points 17
58 to 63

Alloy Composition

Aluminum (Al), % 0
1.4 to 1.8
Carbon (C), % 0 to 0.1
0 to 0.015
Chromium (Cr), % 16 to 18
11 to 12.5
Iron (Fe), % 59.1 to 65.4
71.5 to 75.5
Manganese (Mn), % 7.0 to 9.0
0 to 0.1
Molybdenum (Mo), % 0
1.8 to 2.3
Nickel (Ni), % 8.0 to 9.0
10.2 to 11.3
Nitrogen (N), % 0.080 to 0.18
0 to 0.010
Phosphorus (P), % 0 to 0.060
0 to 0.010
Silicon (Si), % 3.5 to 4.5
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.0050
Titanium (Ti), % 0
0.2 to 0.5