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EN 1.4669 Stainless Steel vs. S21800 Stainless Steel

Both EN 1.4669 stainless steel and S21800 stainless steel are iron alloys. They have 84% 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 EN 1.4669 stainless steel and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
40
Fatigue Strength, MPa 330
330
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
75
Shear Strength, MPa 500
510
Tensile Strength: Ultimate (UTS), MPa 780
740
Tensile Strength: Yield (Proof), MPa 450
390

Thermal Properties

Latent Heat of Fusion, J/g 290
340
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1030
900
Melting Completion (Liquidus), °C 1420
1360
Melting Onset (Solidus), °C 1370
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 13
15
Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 2.6
3.1
Embodied Energy, MJ/kg 38
45
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 26
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
250
Resilience: Unit (Modulus of Resilience), kJ/m3 510
390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 28
27
Strength to Weight: Bending, points 24
24
Thermal Shock Resistance, points 21
17

Alloy Composition

Carbon (C), % 0 to 0.045
0 to 0.1
Chromium (Cr), % 21.5 to 24
16 to 18
Copper (Cu), % 1.6 to 3.0
0
Iron (Fe), % 65.2 to 74.8
59.1 to 65.4
Manganese (Mn), % 1.0 to 3.0
7.0 to 9.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 1.0 to 3.0
8.0 to 9.0
Nitrogen (N), % 0.12 to 0.2
0.080 to 0.18
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0 to 1.0
3.5 to 4.5
Sulfur (S), % 0 to 0.030
0 to 0.030