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AWS ENiCu-7 vs. CC750S Brass

AWS ENiCu-7 belongs to the nickel alloys classification, while CC750S brass belongs to the copper alloys. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 24 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AWS ENiCu-7 and the bottom bar is CC750S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
110
Elongation at Break, % 34
13
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 62
40
Tensile Strength: Ultimate (UTS), MPa 550
200

Thermal Properties

Latent Heat of Fusion, J/g 280
170
Melting Completion (Liquidus), °C 1270
860
Melting Onset (Solidus), °C 1230
810
Specific Heat Capacity, J/kg-K 430
380
Thermal Conductivity, W/m-K 21
110
Thermal Expansion, µm/m-K 13
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
24
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
26

Otherwise Unclassified Properties

Base Metal Price, % relative 50
25
Density, g/cm3 8.7
8.2
Embodied Carbon, kg CO2/kg material 8.0
2.8
Embodied Energy, MJ/kg 110
46
Embodied Water, L/kg 250
330

Common Calculations

Stiffness to Weight: Axial, points 10
7.1
Stiffness to Weight: Bending, points 21
19
Strength to Weight: Axial, points 17
6.8
Strength to Weight: Bending, points 17
9.3
Thermal Diffusivity, mm2/s 5.5
35
Thermal Shock Resistance, points 18
6.7

Alloy Composition

Aluminum (Al), % 0 to 0.75
0 to 0.1
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 20.6 to 38
62 to 67
Iron (Fe), % 0 to 2.5
0 to 0.8
Lead (Pb), % 0
1.0 to 3.0
Manganese (Mn), % 0 to 4.0
0 to 0.2
Nickel (Ni), % 62 to 69
0 to 1.0
Phosphorus (P), % 0 to 0.020
0 to 0.050
Silicon (Si), % 0 to 1.5
0 to 0.050
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 1.5
Titanium (Ti), % 0 to 1.0
0
Zinc (Zn), % 0
26.3 to 36
Residuals, % 0 to 0.5
0