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EN 2.4668 Nickel vs. AISI 440C Stainless Steel

EN 2.4668 nickel belongs to the nickel alloys classification, while AISI 440C stainless steel belongs to the iron alloys. They have a modest 36% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 2.4668 nickel and the bottom bar is AISI 440C stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14
2.0 to 14
Fatigue Strength, MPa 590
260 to 840
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 840
430 to 1120
Tensile Strength: Ultimate (UTS), MPa 1390
710 to 1970
Tensile Strength: Yield (Proof), MPa 1160
450 to 1900

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Mechanical, °C 980
870
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 13
22
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 75
9.0
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 13
2.2
Embodied Energy, MJ/kg 190
31
Embodied Water, L/kg 250
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
39 to 88
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 46
26 to 71
Strength to Weight: Bending, points 33
23 to 46
Thermal Diffusivity, mm2/s 3.5
6.0
Thermal Shock Resistance, points 40
26 to 71

Alloy Composition

Aluminum (Al), % 0.3 to 0.7
0
Boron (B), % 0.0020 to 0.0060
0
Carbon (C), % 0.020 to 0.080
1.0 to 1.2
Chromium (Cr), % 17 to 21
16 to 18
Cobalt (Co), % 0 to 1.0
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 11.2 to 24.6
78 to 83.1
Manganese (Mn), % 0 to 0.35
0 to 1.0
Molybdenum (Mo), % 2.8 to 3.3
0 to 0.75
Nickel (Ni), % 50 to 55
0
Niobium (Nb), % 4.7 to 5.5
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0.6 to 1.2
0