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Nickel 725 vs. AWS E349

Nickel 725 belongs to the nickel alloys classification, while AWS E349 belongs to the iron alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 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 nickel 725 and the bottom bar is AWS E349.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
29
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 860
770

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Melting Completion (Liquidus), °C 1340
1470
Melting Onset (Solidus), °C 1270
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 75
25
Density, g/cm3 8.5
7.9
Embodied Carbon, kg CO2/kg material 13
4.9
Embodied Energy, MJ/kg 190
72
Embodied Water, L/kg 270
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 28
27
Strength to Weight: Bending, points 24
24
Thermal Shock Resistance, points 23
20

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Carbon (C), % 0 to 0.030
0 to 0.13
Chromium (Cr), % 19 to 22.5
18 to 21
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 2.3 to 15.3
60.5 to 71.1
Manganese (Mn), % 0 to 0.35
0.5 to 2.5
Molybdenum (Mo), % 7.0 to 9.5
0.35 to 0.65
Nickel (Ni), % 55 to 59
8.0 to 10
Niobium (Nb), % 2.8 to 4.0
0.75 to 1.2
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 1.0 to 1.7
0 to 0.15
Tungsten (W), % 0
1.3 to 1.8
Vanadium (V), % 0
0.1 to 0.3