Grade N7M Nickel vs. AWS ENiCu-7

Both grade N7M nickel and AWS ENiCu-7 are nickel alloys. They have 68% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade N7M nickel and the bottom bar is AWS ENiCu-7.

Grade N7M (J30007) Cast Nickel AWS ENiCu-7 (W84190) Weld Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		220
Elastic (Young's, Tensile) Modulus, GPa		160

Elongation at Break, %		22
Elongation at Break, %		34

Poisson's Ratio		0.31
Poisson's Ratio		0.32

Shear Modulus, GPa		85
Shear Modulus, GPa		62

Tensile Strength: Ultimate (UTS), MPa		590
Tensile Strength: Ultimate (UTS), MPa		550

Thermal Properties

Latent Heat of Fusion, J/g		320
Latent Heat of Fusion, J/g		280

Melting Completion (Liquidus), °C		1650
Melting Completion (Liquidus), °C		1270

Melting Onset (Solidus), °C		1590
Melting Onset (Solidus), °C		1230

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		430

Thermal Expansion, µm/m-K		9.9
Thermal Expansion, µm/m-K		13

Otherwise Unclassified Properties

Base Metal Price, % relative		75
Base Metal Price, % relative		50

Density, g/cm³		9.3
Density, g/cm³		8.7

Embodied Carbon, kg CO₂/kg material		16
Embodied Carbon, kg CO₂/kg material		8.0

Embodied Energy, MJ/kg		200
Embodied Energy, MJ/kg		110

Embodied Water, L/kg		270
Embodied Water, L/kg		250

Common Calculations

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		10

Stiffness to Weight: Bending, points		22
Stiffness to Weight: Bending, points		21

Strength to Weight: Axial, points		18
Strength to Weight: Axial, points		17

Strength to Weight: Bending, points		17
Strength to Weight: Bending, points		17

Thermal Shock Resistance, points		19
Thermal Shock Resistance, points		18

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.75

Carbon (C), %		0 to 0.070
Carbon (C), %		0 to 0.1

Chromium (Cr), %		0 to 1.0
Chromium (Cr), %		0

Copper (Cu), %		0
Copper (Cu), %		20.6 to 38

Iron (Fe), %		0 to 3.0
Iron (Fe), %		0 to 2.5

Manganese (Mn), %		0 to 1.0
Manganese (Mn), %		0 to 4.0

Molybdenum (Mo), %		30 to 33
Molybdenum (Mo), %		0

Nickel (Ni), %		60.9 to 70
Nickel (Ni), %		62 to 69

Phosphorus (P), %		0 to 0.040
Phosphorus (P), %		0 to 0.020

Silicon (Si), %		0 to 1.0
Silicon (Si), %		0 to 1.5

Sulfur (S), %		0 to 0.030
Sulfur (S), %		0 to 0.015

Titanium (Ti), %		0
Titanium (Ti), %		0 to 1.0

Residuals, %		0
Residuals, %		0 to 0.5