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EN 1.4310 Stainless Steel vs. S21800 Stainless Steel

Both EN 1.4310 stainless steel and S21800 stainless steel are iron alloys. They have 89% 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 EN 1.4310 stainless steel and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 270
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 45
40
Fatigue Strength, MPa 240 to 330
330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Shear Strength, MPa 510 to 550
510
Tensile Strength: Ultimate (UTS), MPa 730 to 900
740
Tensile Strength: Yield (Proof), MPa 260 to 570
390

Thermal Properties

Latent Heat of Fusion, J/g 290
340
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 910
900
Melting Completion (Liquidus), °C 1420
1360
Melting Onset (Solidus), °C 1380
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 18
16

Otherwise Unclassified Properties

Base Metal Price, % relative 14
15
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 2.9
3.1
Embodied Energy, MJ/kg 42
45
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 20
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 260
250
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 830
390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 26 to 32
27
Strength to Weight: Bending, points 23 to 27
24
Thermal Shock Resistance, points 15 to 18
17

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.1
Chromium (Cr), % 16 to 19
16 to 18
Iron (Fe), % 66.4 to 78
59.1 to 65.4
Manganese (Mn), % 0 to 2.0
7.0 to 9.0
Molybdenum (Mo), % 0 to 0.8
0
Nickel (Ni), % 6.0 to 9.5
8.0 to 9.0
Nitrogen (N), % 0 to 0.1
0.080 to 0.18
Phosphorus (P), % 0 to 0.045
0 to 0.060
Silicon (Si), % 0 to 2.0
3.5 to 4.5
Sulfur (S), % 0 to 0.015
0 to 0.030