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AWS BNi-5 vs. Zamak 7

AWS BNi-5 belongs to the nickel alloys classification, while Zamak 7 belongs to the zinc alloys. There are 19 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-5 and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
86
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 72
33
Tensile Strength: Ultimate (UTS), MPa 470
280

Thermal Properties

Latent Heat of Fusion, J/g 470
120
Melting Completion (Liquidus), °C 1140
390
Melting Onset (Solidus), °C 1080
380
Specific Heat Capacity, J/kg-K 510
410
Thermal Expansion, µm/m-K 12
27

Otherwise Unclassified Properties

Base Metal Price, % relative 55
11
Density, g/cm3 7.7
6.4
Embodied Carbon, kg CO2/kg material 8.9
3.0
Embodied Energy, MJ/kg 130
57
Embodied Water, L/kg 260
380

Common Calculations

Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 17
12
Strength to Weight: Bending, points 17
15
Thermal Shock Resistance, points 15
8.6

Alloy Composition


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Aluminum (Al), % 0 to 0.050
3.5 to 4.3
Boron (B), % 0 to 0.030
0
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 18.5 to 19.5
0
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0
0 to 0.075
Lead (Pb), % 0
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Nickel (Ni), % 69.1 to 71.8
0.0050 to 0.020
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 9.8 to 10.5
0
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0
0 to 0.0010
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0
95.3 to 96.5
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0