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EN 1.4361 Stainless Steel vs. Nickel 686

EN 1.4361 stainless steel belongs to the iron alloys classification, while nickel 686 belongs to the nickel alloys. They have a modest 36% 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 (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4361 stainless steel and the bottom bar is nickel 686.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 43
51
Fatigue Strength, MPa 220
410
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
77
Shear Strength, MPa 440
560
Tensile Strength: Ultimate (UTS), MPa 630
780
Tensile Strength: Yield (Proof), MPa 250
350

Thermal Properties

Latent Heat of Fusion, J/g 350
320
Maximum Temperature: Mechanical, °C 940
980
Melting Completion (Liquidus), °C 1370
1380
Melting Onset (Solidus), °C 1330
1340
Specific Heat Capacity, J/kg-K 490
420
Thermal Conductivity, W/m-K 14
9.8
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
70
Density, g/cm3 7.6
9.0
Embodied Carbon, kg CO2/kg material 3.6
12
Embodied Energy, MJ/kg 52
170
Embodied Water, L/kg 150
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
320
Resilience: Unit (Modulus of Resilience), kJ/m3 160
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 23
24
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 3.7
2.6
Thermal Shock Resistance, points 15
21

Alloy Composition

Carbon (C), % 0 to 0.015
0 to 0.010
Chromium (Cr), % 16.5 to 18.5
19 to 23
Iron (Fe), % 58.7 to 65.8
0 to 5.0
Manganese (Mn), % 0 to 2.0
0 to 0.75
Molybdenum (Mo), % 0 to 0.2
15 to 17
Nickel (Ni), % 14 to 16
49.5 to 63
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 3.7 to 4.5
0 to 0.080
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 0
0.020 to 0.25
Tungsten (W), % 0
3.0 to 4.4