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AWS E383 vs. Grade N7M Nickel

AWS E383 belongs to the iron alloys classification, while grade N7M nickel belongs to the nickel alloys. They have a modest 38% 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 (8, in this case) are not shown.

For each property being compared, the top bar is AWS E383 and the bottom bar is grade N7M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
220
Elongation at Break, % 34
22
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 80
85
Tensile Strength: Ultimate (UTS), MPa 580
590

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1420
1650
Melting Onset (Solidus), °C 1370
1590
Specific Heat Capacity, J/kg-K 470
390
Thermal Expansion, µm/m-K 14
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 37
75
Density, g/cm3 8.1
9.3
Embodied Carbon, kg CO2/kg material 6.4
16
Embodied Energy, MJ/kg 89
200
Embodied Water, L/kg 240
270

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 20
18
Strength to Weight: Bending, points 19
17
Thermal Shock Resistance, points 15
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.070
Chromium (Cr), % 26.5 to 29
0 to 1.0
Copper (Cu), % 0.6 to 1.5
0
Iron (Fe), % 28.8 to 39.2
0 to 3.0
Manganese (Mn), % 0.5 to 2.5
0 to 1.0
Molybdenum (Mo), % 3.2 to 4.2
30 to 33
Nickel (Ni), % 30 to 33
60.9 to 70
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.9
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030