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S21800 Stainless Steel vs. EN 1.4874 Stainless Steel

Both S21800 stainless steel and EN 1.4874 stainless steel are iron alloys. They have 58% of their average alloy composition in common. There are 28 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 1.4874 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
140
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 40
6.7
Fatigue Strength, MPa 330
180
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 740
480
Tensile Strength: Yield (Proof), MPa 390
360

Thermal Properties

Latent Heat of Fusion, J/g 340
300
Maximum Temperature: Corrosion, °C 410
560
Maximum Temperature: Mechanical, °C 900
1150
Melting Completion (Liquidus), °C 1360
1450
Melting Onset (Solidus), °C 1310
1400
Specific Heat Capacity, J/kg-K 500
450
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 15
70
Density, g/cm3 7.5
8.4
Embodied Carbon, kg CO2/kg material 3.1
7.6
Embodied Energy, MJ/kg 45
110
Embodied Water, L/kg 150
290

Common Calculations

PREN (Pitting Resistance) 19
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
29
Resilience: Unit (Modulus of Resilience), kJ/m3 390
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 27
16
Strength to Weight: Bending, points 24
16
Thermal Shock Resistance, points 17
11

Alloy Composition

Carbon (C), % 0 to 0.1
0.35 to 0.65
Chromium (Cr), % 16 to 18
19 to 22
Cobalt (Co), % 0
18.5 to 22
Iron (Fe), % 59.1 to 65.4
23 to 38.9
Manganese (Mn), % 7.0 to 9.0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 8.0 to 9.0
18 to 22
Niobium (Nb), % 0
0.75 to 1.3
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 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
2.0 to 3.0