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AWS ERNi-1 vs. Nickel 718

Both AWS ERNi-1 and nickel 718 are nickel alloys. They have 55% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS ERNi-1 and the bottom bar is nickel 718.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Elongation at Break, % 22
12 to 50
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 69
75
Tensile Strength: Ultimate (UTS), MPa 470
930 to 1530

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Melting Completion (Liquidus), °C 1360
1340
Melting Onset (Solidus), °C 1310
1260
Specific Heat Capacity, J/kg-K 450
450
Thermal Conductivity, W/m-K 73
11
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 19
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 19
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 60
75
Density, g/cm3 8.7
8.3
Embodied Carbon, kg CO2/kg material 11
13
Embodied Energy, MJ/kg 150
190
Embodied Water, L/kg 230
250

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 15
31 to 51
Strength to Weight: Bending, points 15
25 to 35
Thermal Diffusivity, mm2/s 19
3.0
Thermal Shock Resistance, points 17
27 to 44

Alloy Composition

Aluminum (Al), % 0 to 1.5
0.2 to 0.8
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 0
17 to 21
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 0 to 1.0
11.1 to 24.6
Manganese (Mn), % 0 to 1.0
0 to 0.35
Molybdenum (Mo), % 0
2.8 to 3.3
Nickel (Ni), % 93 to 98
50 to 55
Niobium (Nb), % 0
4.8 to 5.5
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0 to 0.75
0 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 2.0 to 3.5
0.65 to 1.2
Residuals, % 0 to 0.5
0