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Nickel 686 vs. EN 1.6957 Steel

Nickel 686 belongs to the nickel alloys classification, while EN 1.6957 steel belongs to the iron alloys. There are 30 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 nickel 686 and the bottom bar is EN 1.6957 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 51
18
Fatigue Strength, MPa 410
530
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 560
570
Tensile Strength: Ultimate (UTS), MPa 780
930
Tensile Strength: Yield (Proof), MPa 350
780

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 980
450
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1340
1420
Specific Heat Capacity, J/kg-K 420
470
Thermal Conductivity, W/m-K 9.8
47
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 70
5.0
Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 12
2.1
Embodied Energy, MJ/kg 170
29
Embodied Water, L/kg 300
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
160
Resilience: Unit (Modulus of Resilience), kJ/m3 280
1630
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 24
33
Strength to Weight: Bending, points 21
27
Thermal Diffusivity, mm2/s 2.6
13
Thermal Shock Resistance, points 21
27

Alloy Composition

Carbon (C), % 0 to 0.010
0.22 to 0.32
Chromium (Cr), % 19 to 23
1.2 to 1.8
Iron (Fe), % 0 to 5.0
92.7 to 94.7
Manganese (Mn), % 0 to 0.75
0.15 to 0.4
Molybdenum (Mo), % 15 to 17
0.25 to 0.45
Nickel (Ni), % 49.5 to 63
3.4 to 4.0
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 0.080
0 to 0.15
Sulfur (S), % 0 to 0.020
0 to 0.0070
Titanium (Ti), % 0.020 to 0.25
0
Tungsten (W), % 3.0 to 4.4
0
Vanadium (V), % 0
0.050 to 0.15