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AISI 414 Stainless Steel vs. Nickel 686

AISI 414 stainless steel belongs to the iron alloys classification, while nickel 686 belongs to the nickel 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 AISI 414 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, % 17
51
Fatigue Strength, MPa 430 to 480
410
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
77
Shear Strength, MPa 550 to 590
560
Tensile Strength: Ultimate (UTS), MPa 900 to 960
780
Tensile Strength: Yield (Proof), MPa 700 to 790
350

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 750
980
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1400
1340
Specific Heat Capacity, J/kg-K 480
420
Thermal Conductivity, W/m-K 25
9.8
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
70
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 2.1
12
Embodied Energy, MJ/kg 29
170
Embodied Water, L/kg 100
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
320
Resilience: Unit (Modulus of Resilience), kJ/m3 1260 to 1590
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 32 to 34
24
Strength to Weight: Bending, points 27 to 28
21
Thermal Diffusivity, mm2/s 6.7
2.6
Thermal Shock Resistance, points 33 to 35
21

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.010
Chromium (Cr), % 11.5 to 13.5
19 to 23
Iron (Fe), % 81.8 to 87.3
0 to 5.0
Manganese (Mn), % 0 to 1.0
0 to 0.75
Molybdenum (Mo), % 0
15 to 17
Nickel (Ni), % 1.3 to 2.5
49.5 to 63
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.080
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0
0.020 to 0.25
Tungsten (W), % 0
3.0 to 4.4