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AWS BNi-7 vs. C87800 Brass

AWS BNi-7 belongs to the nickel alloys classification, while C87800 brass belongs to the copper alloys. There are 19 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-7 and the bottom bar is C87800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170
110
Poisson's Ratio 0.3
0.33
Shear Modulus, GPa 67
42
Tensile Strength: Ultimate (UTS), MPa 550
590

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 890
920
Melting Onset (Solidus), °C 890
820
Specific Heat Capacity, J/kg-K 490
410
Thermal Expansion, µm/m-K 11
18

Otherwise Unclassified Properties

Base Metal Price, % relative 55
27
Density, g/cm3 8.0
8.3
Embodied Carbon, kg CO2/kg material 8.8
2.7
Embodied Energy, MJ/kg 120
44
Embodied Water, L/kg 240
300

Common Calculations

Stiffness to Weight: Axial, points 12
7.4
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 19
20
Strength to Weight: Bending, points 19
19
Thermal Shock Resistance, points 21
21

Alloy Composition

Aluminum (Al), % 0 to 0.050
0 to 0.15
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 13 to 15
0
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
80 to 84.2
Iron (Fe), % 0 to 0.2
0 to 0.15
Lead (Pb), % 0
0 to 0.15
Magnesium (Mg), % 0
0 to 0.010
Manganese (Mn), % 0 to 0.040
0 to 0.15
Nickel (Ni), % 73.3 to 77.3
0 to 0.2
Phosphorus (P), % 9.7 to 10.5
0 to 0.010
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.1
3.8 to 4.2
Sulfur (S), % 0 to 0.020
0 to 0.050
Tin (Sn), % 0
0 to 0.25
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0
12 to 16
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.5