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EN 2.4632 Nickel vs. S21640 Stainless Steel

EN 2.4632 nickel belongs to the nickel alloys classification, while S21640 stainless steel belongs to the iron alloys. They have a modest 26% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 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 EN 2.4632 nickel and the bottom bar is S21640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
46
Fatigue Strength, MPa 430
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
78
Shear Strength, MPa 770
520
Tensile Strength: Ultimate (UTS), MPa 1250
740
Tensile Strength: Yield (Proof), MPa 780
350

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 1010
940
Melting Completion (Liquidus), °C 1340
1430
Melting Onset (Solidus), °C 1290
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 13
15
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 75
17
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 9.4
3.6
Embodied Energy, MJ/kg 130
51
Embodied Water, L/kg 350
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
280
Resilience: Unit (Modulus of Resilience), kJ/m3 1570
300
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 42
27
Strength to Weight: Bending, points 31
23
Thermal Diffusivity, mm2/s 3.3
4.0
Thermal Shock Resistance, points 39
16

Alloy Composition

Aluminum (Al), % 1.0 to 2.0
0
Boron (B), % 0 to 0.020
0
Carbon (C), % 0 to 0.13
0 to 0.080
Chromium (Cr), % 18 to 21
17.5 to 19.5
Cobalt (Co), % 15 to 21
0
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 1.5
63 to 74.3
Manganese (Mn), % 0 to 1.0
3.5 to 6.5
Molybdenum (Mo), % 0
0.5 to 2.0
Nickel (Ni), % 49 to 64
4.0 to 6.5
Niobium (Nb), % 0
0.1 to 1.0
Nitrogen (N), % 0
0.080 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.060
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 2.0 to 3.0
0
Zirconium (Zr), % 0 to 0.15
0