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AWS E219 vs. Grade N7M Nickel

AWS E219 belongs to the iron alloys classification, while grade N7M nickel belongs to the nickel alloys. 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 E219 and the bottom bar is grade N7M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 17
22
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 78
85
Tensile Strength: Ultimate (UTS), MPa 690
590

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Melting Completion (Liquidus), °C 1400
1650
Melting Onset (Solidus), °C 1360
1590
Specific Heat Capacity, J/kg-K 480
390
Thermal Expansion, µm/m-K 15
9.9

Otherwise Unclassified Properties

Base Metal Price, % relative 15
75
Density, g/cm3 7.7
9.3
Embodied Carbon, kg CO2/kg material 3.1
16
Embodied Energy, MJ/kg 44
200
Embodied Water, L/kg 160
270

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 23
17
Thermal Shock Resistance, points 17
19

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.070
Chromium (Cr), % 19 to 21.5
0 to 1.0
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 58.6 to 67.4
0 to 3.0
Manganese (Mn), % 8.0 to 10
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
30 to 33
Nickel (Ni), % 5.5 to 7.0
60.9 to 70
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030