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C87900 Brass vs. AWS ERNiCu-7

C87900 brass belongs to the copper alloys classification, while AWS ERNiCu-7 belongs to the nickel alloys. They have a modest 29% 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 C87900 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, % 25
34
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 41
61
Tensile Strength: Ultimate (UTS), MPa 480
550

Thermal Properties

Latent Heat of Fusion, J/g 190
280
Melting Completion (Liquidus), °C 930
1280
Melting Onset (Solidus), °C 900
1240
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 120
20
Thermal Expansion, µm/m-K 20
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
3.2
Electrical Conductivity: Equal Weight (Specific), % IACS 17
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 24
50
Density, g/cm3 8.1
8.7
Embodied Carbon, kg CO2/kg material 2.7
8.5
Embodied Energy, MJ/kg 46
120
Embodied Water, L/kg 320
250

Common Calculations

Stiffness to Weight: Axial, points 7.3
10
Stiffness to Weight: Bending, points 20
21
Strength to Weight: Axial, points 17
18
Strength to Weight: Bending, points 17
17
Thermal Diffusivity, mm2/s 37
5.3
Thermal Shock Resistance, points 16
19

Alloy Composition


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Aluminum (Al), % 0 to 0.15
0 to 1.3
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.15
Copper (Cu), % 63 to 69.2
18.3 to 36.5
Iron (Fe), % 0 to 0.4
0 to 2.5
Lead (Pb), % 0 to 0.25
0
Manganese (Mn), % 0 to 0.15
0 to 4.0
Nickel (Ni), % 0 to 0.5
62 to 69
Phosphorus (P), % 0 to 0.010
0 to 0.030
Silicon (Si), % 0.8 to 1.2
0 to 1.3
Sulfur (S), % 0 to 0.050
0 to 0.015
Tin (Sn), % 0 to 0.25
0
Titanium (Ti), % 0
1.5 to 3.0
Zinc (Zn), % 30 to 36
0
Residuals, % 0
0 to 0.5