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EN 1.4859 Stainless Steel vs. S21800 Stainless Steel

Both EN 1.4859 stainless steel and S21800 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 28 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 1.4859 stainless steel and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
40
Fatigue Strength, MPa 140
330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 490
740
Tensile Strength: Yield (Proof), MPa 210
390

Thermal Properties

Latent Heat of Fusion, J/g 310
340
Maximum Temperature: Corrosion, °C 560
410
Maximum Temperature: Mechanical, °C 1050
900
Melting Completion (Liquidus), °C 1410
1360
Melting Onset (Solidus), °C 1360
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 36
15
Density, g/cm3 8.0
7.5
Embodied Carbon, kg CO2/kg material 6.2
3.1
Embodied Energy, MJ/kg 88
45
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 21
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
250
Resilience: Unit (Modulus of Resilience), kJ/m3 110
390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 17
27
Strength to Weight: Bending, points 17
24
Thermal Shock Resistance, points 11
17

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.1
Chromium (Cr), % 19 to 21
16 to 18
Iron (Fe), % 40.3 to 49
59.1 to 65.4
Manganese (Mn), % 0 to 2.0
7.0 to 9.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 31 to 33
8.0 to 9.0
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0.5 to 1.5
3.5 to 4.5
Sulfur (S), % 0 to 0.030
0 to 0.030