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AWS ENiCu-7 vs. Class 4 Tungsten

AWS ENiCu-7 belongs to the nickel alloys classification, while class 4 tungsten belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AWS ENiCu-7 and the bottom bar is class 4 tungsten.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
270
Elongation at Break, % 34
2.3
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 62
110
Tensile Strength: Ultimate (UTS), MPa 550
790

Thermal Properties

Latent Heat of Fusion, J/g 280
170
Specific Heat Capacity, J/kg-K 430
130
Thermal Conductivity, W/m-K 21
30
Thermal Expansion, µm/m-K 13
4.5

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
17
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
9.7

Otherwise Unclassified Properties

Density, g/cm3 8.7
16
Embodied Carbon, kg CO2/kg material 8.0
24
Embodied Energy, MJ/kg 110
360
Embodied Water, L/kg 250
150

Common Calculations

Stiffness to Weight: Axial, points 10
9.6
Stiffness to Weight: Bending, points 21
14
Strength to Weight: Axial, points 17
14
Strength to Weight: Bending, points 17
12
Thermal Diffusivity, mm2/s 5.5
15
Thermal Shock Resistance, points 18
46

Alloy Composition


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Aluminum (Al), % 0 to 0.75
0
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 20.6 to 38
0
Iron (Fe), % 0 to 2.5
0
Manganese (Mn), % 0 to 4.0
0
Nickel (Ni), % 62 to 69
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0 to 1.0
0
Tungsten (W), % 0
97
Residuals, % 0 to 0.5
3.0