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Nickel 686 vs. EN 1.4762 Stainless Steel

Nickel 686 belongs to the nickel alloys classification, while EN 1.4762 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 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 nickel 686 and the bottom bar is EN 1.4762 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 51
13
Fatigue Strength, MPa 410
180
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 77
78
Shear Strength, MPa 560
370
Tensile Strength: Ultimate (UTS), MPa 780
620
Tensile Strength: Yield (Proof), MPa 350
310

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Mechanical, °C 980
1150
Melting Completion (Liquidus), °C 1380
1410
Melting Onset (Solidus), °C 1340
1370
Specific Heat Capacity, J/kg-K 420
490
Thermal Conductivity, W/m-K 9.8
17
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 70
12
Density, g/cm3 9.0
7.6
Embodied Carbon, kg CO2/kg material 12
2.5
Embodied Energy, MJ/kg 170
37
Embodied Water, L/kg 300
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
67
Resilience: Unit (Modulus of Resilience), kJ/m3 280
250
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 22
26
Strength to Weight: Axial, points 24
23
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 2.6
4.6
Thermal Shock Resistance, points 21
22

Alloy Composition

Aluminum (Al), % 0
1.2 to 1.7
Carbon (C), % 0 to 0.010
0 to 0.12
Chromium (Cr), % 19 to 23
23 to 26
Iron (Fe), % 0 to 5.0
69.7 to 75.1
Manganese (Mn), % 0 to 0.75
0 to 1.0
Molybdenum (Mo), % 15 to 17
0
Nickel (Ni), % 49.5 to 63
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.080
0.7 to 1.4
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0.020 to 0.25
0
Tungsten (W), % 3.0 to 4.4
0