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Nickel 686 vs. EN 1.7715 Steel

Nickel 686 belongs to the nickel alloys classification, while EN 1.7715 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 1.7715 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 51
21
Fatigue Strength, MPa 410
240
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 560
340
Tensile Strength: Ultimate (UTS), MPa 780
540
Tensile Strength: Yield (Proof), MPa 350
340

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 980
420
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
40
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 70
2.9
Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 12
2.2
Embodied Energy, MJ/kg 170
30
Embodied Water, L/kg 300
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
99
Resilience: Unit (Modulus of Resilience), kJ/m3 280
320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 24
19
Strength to Weight: Bending, points 21
19
Thermal Diffusivity, mm2/s 2.6
11
Thermal Shock Resistance, points 21
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.010
0.1 to 0.15
Chromium (Cr), % 19 to 23
0.3 to 0.6
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 0 to 5.0
96.5 to 98.3
Manganese (Mn), % 0 to 0.75
0.4 to 0.7
Molybdenum (Mo), % 15 to 17
0.5 to 0.7
Nickel (Ni), % 49.5 to 63
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.080
0.15 to 0.35
Sulfur (S), % 0 to 0.020
0 to 0.010
Titanium (Ti), % 0.020 to 0.25
0
Tungsten (W), % 3.0 to 4.4
0
Vanadium (V), % 0
0.22 to 0.28