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Nickel 686 vs. EN 1.7378 Steel

Nickel 686 belongs to the nickel alloys classification, while EN 1.7378 steel belongs to the iron alloys. 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 1.7378 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 51
17
Fatigue Strength, MPa 410
330
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
74
Shear Strength, MPa 560
430
Tensile Strength: Ultimate (UTS), MPa 780
700
Tensile Strength: Yield (Proof), MPa 350
490

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Maximum Temperature: Mechanical, °C 980
460
Melting Completion (Liquidus), °C 1380
1470
Melting Onset (Solidus), °C 1340
1430
Specific Heat Capacity, J/kg-K 420
470
Thermal Conductivity, W/m-K 9.8
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 70
4.0
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 12
2.3
Embodied Energy, MJ/kg 170
33
Embodied Water, L/kg 300
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
110
Resilience: Unit (Modulus of Resilience), kJ/m3 280
630
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 24
25
Strength to Weight: Bending, points 21
22
Thermal Diffusivity, mm2/s 2.6
10
Thermal Shock Resistance, points 21
20

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.0015 to 0.0070
Carbon (C), % 0 to 0.010
0.050 to 0.1
Chromium (Cr), % 19 to 23
2.2 to 2.6
Iron (Fe), % 0 to 5.0
94.6 to 96.1
Manganese (Mn), % 0 to 0.75
0.3 to 0.7
Molybdenum (Mo), % 15 to 17
0.9 to 1.1
Nickel (Ni), % 49.5 to 63
0
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 0.080
0.15 to 0.45
Sulfur (S), % 0 to 0.020
0 to 0.010
Titanium (Ti), % 0.020 to 0.25
0.050 to 0.1
Tungsten (W), % 3.0 to 4.4
0
Vanadium (V), % 0
0.2 to 0.3