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EN 1.4057 Stainless Steel vs. Nickel 686

EN 1.4057 stainless steel belongs to the iron alloys classification, while nickel 686 belongs to the nickel alloys. They have a modest 21% 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 (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4057 stainless steel and the bottom bar is nickel 686.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 11 to 17
51
Fatigue Strength, MPa 320 to 430
410
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
77
Shear Strength, MPa 520 to 580
560
Tensile Strength: Ultimate (UTS), MPa 840 to 980
780
Tensile Strength: Yield (Proof), MPa 530 to 790
350

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Maximum Temperature: Mechanical, °C 850
980
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1390
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 9.5
70
Density, g/cm3 7.7
9.0
Embodied Carbon, kg CO2/kg material 2.2
12
Embodied Energy, MJ/kg 32
170
Embodied Water, L/kg 120
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 130
320
Resilience: Unit (Modulus of Resilience), kJ/m3 700 to 1610
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 30 to 35
24
Strength to Weight: Bending, points 26 to 28
21
Thermal Diffusivity, mm2/s 6.7
2.6
Thermal Shock Resistance, points 30 to 35
21

Alloy Composition

Carbon (C), % 0.12 to 0.22
0 to 0.010
Chromium (Cr), % 15 to 17
19 to 23
Iron (Fe), % 77.7 to 83.4
0 to 5.0
Manganese (Mn), % 0 to 1.5
0 to 0.75
Molybdenum (Mo), % 0
15 to 17
Nickel (Ni), % 1.5 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 0.015
0 to 0.020
Titanium (Ti), % 0
0.020 to 0.25
Tungsten (W), % 0
3.0 to 4.4