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AWS ERNiCu-7 vs. S32615 Stainless Steel

AWS ERNiCu-7 belongs to the nickel alloys classification, while S32615 stainless steel belongs to the iron alloys. They have a modest 25% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCu-7 and the bottom bar is S32615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 34
28
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 61
75
Tensile Strength: Ultimate (UTS), MPa 550
620

Thermal Properties

Latent Heat of Fusion, J/g 280
370
Melting Completion (Liquidus), °C 1280
1350
Melting Onset (Solidus), °C 1240
1310
Specific Heat Capacity, J/kg-K 440
500
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 50
24
Density, g/cm3 8.7
7.6
Embodied Carbon, kg CO2/kg material 8.5
4.4
Embodied Energy, MJ/kg 120
63
Embodied Water, L/kg 250
170

Common Calculations

Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 18
23
Strength to Weight: Bending, points 17
21
Thermal Shock Resistance, points 19
15

Alloy Composition

Aluminum (Al), % 0 to 1.3
0
Carbon (C), % 0 to 0.15
0 to 0.070
Chromium (Cr), % 0
16.5 to 19.5
Copper (Cu), % 18.3 to 36.5
1.5 to 2.5
Iron (Fe), % 0 to 2.5
46.4 to 57.9
Manganese (Mn), % 0 to 4.0
0 to 2.0
Molybdenum (Mo), % 0
0.3 to 1.5
Nickel (Ni), % 62 to 69
19 to 22
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 1.3
4.8 to 6.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 1.5 to 3.0
0
Residuals, % 0 to 0.5
0