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AWS E630 vs. Nickel 718

AWS E630 belongs to the iron alloys classification, while nickel 718 belongs to the nickel alloys. They have 40% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS E630 and the bottom bar is nickel 718.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.0
12 to 50
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 1040
930 to 1530

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Melting Completion (Liquidus), °C 1430
1340
Melting Onset (Solidus), °C 1380
1260
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 17
11
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
75
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 2.8
13
Embodied Energy, MJ/kg 40
190
Embodied Water, L/kg 140
250

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 37
31 to 51
Strength to Weight: Bending, points 29
25 to 35
Thermal Diffusivity, mm2/s 4.5
3.0
Thermal Shock Resistance, points 28
27 to 44

Alloy Composition

Aluminum (Al), % 0
0.2 to 0.8
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0 to 0.050
0 to 0.080
Chromium (Cr), % 16 to 16.8
17 to 21
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 3.3 to 4.0
0 to 0.3
Iron (Fe), % 71.6 to 75.9
11.1 to 24.6
Manganese (Mn), % 0.25 to 0.75
0 to 0.35
Molybdenum (Mo), % 0 to 0.75
2.8 to 3.3
Nickel (Ni), % 4.5 to 5.0
50 to 55
Niobium (Nb), % 0.15 to 0.3
4.8 to 5.5
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 0.75
0 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.65 to 1.2