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AWS ERNiCu-7 vs. S66286 Stainless Steel

AWS ERNiCu-7 belongs to the nickel alloys classification, while S66286 stainless steel belongs to the iron alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCu-7 and the bottom bar is S66286 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 34
17 to 40
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 61
75
Tensile Strength: Ultimate (UTS), MPa 550
620 to 1020

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 1280
1430
Melting Onset (Solidus), °C 1240
1370
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 20
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.2
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 50
26
Density, g/cm3 8.7
7.9
Embodied Carbon, kg CO2/kg material 8.5
6.0
Embodied Energy, MJ/kg 120
87
Embodied Water, L/kg 250
170

Common Calculations

Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 18
22 to 36
Strength to Weight: Bending, points 17
20 to 28
Thermal Diffusivity, mm2/s 5.3
4.0
Thermal Shock Resistance, points 19
13 to 22

Alloy Composition

Aluminum (Al), % 0 to 1.3
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 0
13.5 to 16
Copper (Cu), % 18.3 to 36.5
0
Iron (Fe), % 0 to 2.5
49.1 to 59.5
Manganese (Mn), % 0 to 4.0
0 to 2.0
Molybdenum (Mo), % 0
1.0 to 1.5
Nickel (Ni), % 62 to 69
24 to 27
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.3
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 1.5 to 3.0
1.9 to 2.4
Vanadium (V), % 0
0.1 to 0.5
Residuals, % 0 to 0.5
0