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C69400 Brass vs. AWS ERNiCu-7

C69400 brass belongs to the copper alloys classification, while AWS ERNiCu-7 belongs to the nickel 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 C69400 brass and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
160
Elongation at Break, % 17
34
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 42
61
Tensile Strength: Ultimate (UTS), MPa 570
550

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 920
1280
Melting Onset (Solidus), °C 820
1240
Specific Heat Capacity, J/kg-K 410
440
Thermal Conductivity, W/m-K 26
20
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.2
3.2
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 27
50
Density, g/cm3 8.3
8.7
Embodied Carbon, kg CO2/kg material 2.7
8.5
Embodied Energy, MJ/kg 44
120
Embodied Water, L/kg 300
250

Common Calculations

Stiffness to Weight: Axial, points 7.4
10
Stiffness to Weight: Bending, points 19
21
Strength to Weight: Axial, points 19
18
Strength to Weight: Bending, points 18
17
Thermal Diffusivity, mm2/s 7.7
5.3
Thermal Shock Resistance, points 20
19

Alloy Composition

Aluminum (Al), % 0
0 to 1.3
Carbon (C), % 0
0 to 0.15
Copper (Cu), % 80 to 83
18.3 to 36.5
Iron (Fe), % 0 to 0.2
0 to 2.5
Lead (Pb), % 0 to 0.3
0
Manganese (Mn), % 0
0 to 4.0
Nickel (Ni), % 0
62 to 69
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 3.5 to 4.5
0 to 1.3
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
1.5 to 3.0
Zinc (Zn), % 11.5 to 16.5
0
Residuals, % 0
0 to 0.5