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EN 2.4669 Nickel vs. AISI 446 Stainless Steel

EN 2.4669 nickel belongs to the nickel alloys classification, while AISI 446 stainless steel belongs to the iron alloys. They have a modest 24% 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 (6, in this case) are not shown.

For each property being compared, the top bar is EN 2.4669 nickel and the bottom bar is AISI 446 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
23
Fatigue Strength, MPa 390
200
Poisson's Ratio 0.29
0.27
Reduction in Area, % 31
50
Shear Modulus, GPa 73
79
Shear Strength, MPa 680
360
Tensile Strength: Ultimate (UTS), MPa 1110
570
Tensile Strength: Yield (Proof), MPa 720
300

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Mechanical, °C 960
1180
Melting Completion (Liquidus), °C 1380
1510
Melting Onset (Solidus), °C 1330
1430
Specific Heat Capacity, J/kg-K 460
490
Thermal Conductivity, W/m-K 12
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 60
12
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 10
2.4
Embodied Energy, MJ/kg 150
35
Embodied Water, L/kg 260
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1380
230
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 37
21
Strength to Weight: Bending, points 28
20
Thermal Diffusivity, mm2/s 3.1
4.6
Thermal Shock Resistance, points 33
19

Alloy Composition

Aluminum (Al), % 0.4 to 1.0
0
Carbon (C), % 0 to 0.080
0 to 0.2
Chromium (Cr), % 14 to 17
23 to 27
Cobalt (Co), % 0 to 1.0
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 5.0 to 9.0
69.2 to 77
Manganese (Mn), % 0 to 1.0
0 to 1.5
Nickel (Ni), % 65.9 to 77.7
0 to 0.75
Niobium (Nb), % 0.7 to 1.2
0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 2.3 to 2.8
0