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EN 2.4654 Nickel vs. S81921 Stainless Steel

EN 2.4654 nickel belongs to the nickel alloys classification, while S81921 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 28 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 2.4654 nickel and the bottom bar is S81921 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
29
Fatigue Strength, MPa 460
370
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 770
460
Tensile Strength: Ultimate (UTS), MPa 1250
710
Tensile Strength: Yield (Proof), MPa 850
500

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Maximum Temperature: Mechanical, °C 1000
990
Melting Completion (Liquidus), °C 1390
1430
Melting Onset (Solidus), °C 1330
1390
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 13
15
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 75
14
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 10
2.9
Embodied Energy, MJ/kg 150
41
Embodied Water, L/kg 340
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
180
Resilience: Unit (Modulus of Resilience), kJ/m3 1810
630
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 42
25
Strength to Weight: Bending, points 31
23
Thermal Diffusivity, mm2/s 3.3
4.0
Thermal Shock Resistance, points 37
20

Alloy Composition

Aluminum (Al), % 1.2 to 1.6
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0.020 to 0.1
0 to 0.030
Chromium (Cr), % 18 to 21
19 to 22
Cobalt (Co), % 12 to 15
0
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 2.0
66.7 to 75.9
Manganese (Mn), % 0 to 1.0
2.0 to 4.0
Molybdenum (Mo), % 3.5 to 5.0
1.0 to 2.0
Nickel (Ni), % 50.6 to 62.5
2.0 to 4.0
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.15
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 2.8 to 3.3
0
Zirconium (Zr), % 0.020 to 0.080
0