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S21800 Stainless Steel vs. EN 1.4845 Stainless Steel

Both S21800 stainless steel and EN 1.4845 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S21800 stainless steel and the bottom bar is EN 1.4845 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 40
38
Fatigue Strength, MPa 330
200
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
78
Shear Strength, MPa 510
410
Tensile Strength: Ultimate (UTS), MPa 740
600
Tensile Strength: Yield (Proof), MPa 390
240

Thermal Properties

Latent Heat of Fusion, J/g 340
310
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 900
1050
Melting Completion (Liquidus), °C 1360
1400
Melting Onset (Solidus), °C 1310
1360
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 15
25
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.1
4.3
Embodied Energy, MJ/kg 45
61
Embodied Water, L/kg 150
190

Common Calculations

PREN (Pitting Resistance) 19
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
180
Resilience: Unit (Modulus of Resilience), kJ/m3 390
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 27
21
Strength to Weight: Bending, points 24
20
Thermal Shock Resistance, points 17
14

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.1
Chromium (Cr), % 16 to 18
24 to 26
Iron (Fe), % 59.1 to 65.4
48.2 to 57
Manganese (Mn), % 7.0 to 9.0
0 to 2.0
Nickel (Ni), % 8.0 to 9.0
19 to 22
Nitrogen (N), % 0.080 to 0.18
0 to 0.1
Phosphorus (P), % 0 to 0.060
0 to 0.045
Silicon (Si), % 3.5 to 4.5
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.015