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AWS ERNiCu-7 vs. C32000 Brass

AWS ERNiCu-7 belongs to the nickel alloys classification, while C32000 brass belongs to the copper alloys. They have a modest 28% 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 ERNiCu-7 and the bottom bar is C32000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
110
Elongation at Break, % 34
6.8 to 29
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 61
41
Tensile Strength: Ultimate (UTS), MPa 550
270 to 470

Thermal Properties

Latent Heat of Fusion, J/g 280
190
Melting Completion (Liquidus), °C 1280
1020
Melting Onset (Solidus), °C 1240
990
Specific Heat Capacity, J/kg-K 440
380
Thermal Conductivity, W/m-K 20
160
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.2
36
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
37

Otherwise Unclassified Properties

Base Metal Price, % relative 50
28
Density, g/cm3 8.7
8.7
Embodied Carbon, kg CO2/kg material 8.5
2.6
Embodied Energy, MJ/kg 120
42
Embodied Water, L/kg 250
310

Common Calculations

Stiffness to Weight: Axial, points 10
7.1
Stiffness to Weight: Bending, points 21
18
Strength to Weight: Axial, points 18
8.8 to 15
Strength to Weight: Bending, points 17
11 to 16
Thermal Diffusivity, mm2/s 5.3
47
Thermal Shock Resistance, points 19
9.5 to 16

Alloy Composition

Aluminum (Al), % 0 to 1.3
0
Carbon (C), % 0 to 0.15
0
Copper (Cu), % 18.3 to 36.5
83.5 to 86.5
Iron (Fe), % 0 to 2.5
0 to 0.1
Lead (Pb), % 0
1.5 to 2.2
Manganese (Mn), % 0 to 4.0
0
Nickel (Ni), % 62 to 69
0 to 0.25
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.3
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 1.5 to 3.0
0
Zinc (Zn), % 0
10.6 to 15
Residuals, % 0
0 to 0.4