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S21800 Stainless Steel vs. EN 1.3963 Alloy

Both S21800 stainless steel and EN 1.3963 alloy are iron alloys. They have 71% of their average alloy composition in common. There are 24 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 S21800 stainless steel and the bottom bar is EN 1.3963 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 40
29
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 75
72
Shear Strength, MPa 510
290
Tensile Strength: Ultimate (UTS), MPa 740
440
Tensile Strength: Yield (Proof), MPa 390
310

Thermal Properties

Latent Heat of Fusion, J/g 340
270
Melting Completion (Liquidus), °C 1360
1430
Melting Onset (Solidus), °C 1310
1390
Specific Heat Capacity, J/kg-K 500
460
Thermal Expansion, µm/m-K 16
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 15
25
Density, g/cm3 7.5
8.2
Embodied Carbon, kg CO2/kg material 3.1
4.8
Embodied Energy, MJ/kg 45
66
Embodied Water, L/kg 150
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
110
Resilience: Unit (Modulus of Resilience), kJ/m3 390
260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
23
Strength to Weight: Axial, points 27
15
Strength to Weight: Bending, points 24
16
Thermal Shock Resistance, points 17
110

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.050
Chromium (Cr), % 16 to 18
0 to 0.25
Iron (Fe), % 59.1 to 65.4
60.5 to 64.9
Manganese (Mn), % 7.0 to 9.0
0 to 0.5
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 8.0 to 9.0
35 to 37
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.060
0 to 0.030
Silicon (Si), % 3.5 to 4.5
0 to 0.5
Sulfur (S), % 0 to 0.030
0.1 to 0.2