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Nickel 625 vs. AWS ERNiCu-7

Both nickel 625 and AWS ERNiCu-7 are nickel alloys. They have 66% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is nickel 625 and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
160
Elongation at Break, % 33 to 34
34
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 79
61
Tensile Strength: Ultimate (UTS), MPa 790 to 910
550

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Melting Completion (Liquidus), °C 1350
1280
Melting Onset (Solidus), °C 1290
1240
Specific Heat Capacity, J/kg-K 440
440
Thermal Conductivity, W/m-K 11
20
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
3.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 80
50
Density, g/cm3 8.6
8.7
Embodied Carbon, kg CO2/kg material 14
8.5
Embodied Energy, MJ/kg 190
120
Embodied Water, L/kg 290
250

Common Calculations

Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 23
21
Strength to Weight: Axial, points 26 to 29
18
Strength to Weight: Bending, points 22 to 24
17
Thermal Diffusivity, mm2/s 2.9
5.3
Thermal Shock Resistance, points 22 to 25
19

Alloy Composition

Aluminum (Al), % 0 to 0.4
0 to 1.3
Carbon (C), % 0 to 0.1
0 to 0.15
Chromium (Cr), % 20 to 23
0
Cobalt (Co), % 0 to 1.0
0
Copper (Cu), % 0
18.3 to 36.5
Iron (Fe), % 0 to 5.0
0 to 2.5
Manganese (Mn), % 0 to 0.5
0 to 4.0
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 58 to 68.9
62 to 69
Niobium (Nb), % 3.2 to 4.2
0
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.3
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0 to 0.4
1.5 to 3.0
Residuals, % 0
0 to 0.5