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AWS ENiCu-7 vs. C69710 Brass

AWS ENiCu-7 belongs to the nickel alloys classification, while C69710 brass belongs to the copper alloys. They have a modest 31% 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 C69710 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
110
Elongation at Break, % 34
25
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 62
41
Tensile Strength: Ultimate (UTS), MPa 550
470

Thermal Properties

Latent Heat of Fusion, J/g 280
240
Melting Completion (Liquidus), °C 1270
930
Melting Onset (Solidus), °C 1230
880
Specific Heat Capacity, J/kg-K 430
400
Thermal Conductivity, W/m-K 21
40
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 50
26
Density, g/cm3 8.7
8.3
Embodied Carbon, kg CO2/kg material 8.0
2.7
Embodied Energy, MJ/kg 110
44
Embodied Water, L/kg 250
310

Common Calculations

Stiffness to Weight: Axial, points 10
7.3
Stiffness to Weight: Bending, points 21
19
Strength to Weight: Axial, points 17
16
Strength to Weight: Bending, points 17
16
Thermal Diffusivity, mm2/s 5.5
12
Thermal Shock Resistance, points 18
16

Alloy Composition

Aluminum (Al), % 0 to 0.75
0
Arsenic (As), % 0
0.030 to 0.060
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 20.6 to 38
75 to 80
Iron (Fe), % 0 to 2.5
0 to 0.2
Lead (Pb), % 0
0.5 to 1.5
Manganese (Mn), % 0 to 4.0
0 to 0.4
Nickel (Ni), % 62 to 69
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 1.5
2.5 to 3.5
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0 to 1.0
0
Zinc (Zn), % 0
13.8 to 22
Residuals, % 0
0 to 0.5