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S21900 Stainless Steel vs. EN 2.4816 Nickel

S21900 stainless steel belongs to the iron alloys classification, while EN 2.4816 nickel belongs to the nickel alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S21900 stainless steel and the bottom bar is EN 2.4816 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 50
34
Fatigue Strength, MPa 380
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
74
Shear Strength, MPa 510
470
Tensile Strength: Ultimate (UTS), MPa 710
700
Tensile Strength: Yield (Proof), MPa 390
270

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Mechanical, °C 980
1150
Melting Completion (Liquidus), °C 1400
1370
Melting Onset (Solidus), °C 1350
1320
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 15
55
Density, g/cm3 7.7
8.5
Embodied Carbon, kg CO2/kg material 3.0
9.0
Embodied Energy, MJ/kg 43
130
Embodied Water, L/kg 160
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
190
Resilience: Unit (Modulus of Resilience), kJ/m3 380
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 26
23
Strength to Weight: Bending, points 23
21
Thermal Diffusivity, mm2/s 3.8
3.8
Thermal Shock Resistance, points 15
20

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0 to 0.080
0.050 to 0.1
Chromium (Cr), % 19 to 21.5
14 to 17
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 59.4 to 67.4
6.0 to 10
Manganese (Mn), % 8.0 to 10
0 to 1.0
Nickel (Ni), % 5.5 to 7.5
72 to 80
Nitrogen (N), % 0.15 to 0.4
0
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0 to 0.3