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AWS BNi-3 vs. Zamak 7

AWS BNi-3 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-3 and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170
86
Poisson's Ratio 0.31
0.25
Shear Modulus, GPa 66
33
Tensile Strength: Ultimate (UTS), MPa 430
280

Thermal Properties

Latent Heat of Fusion, J/g 350
120
Melting Completion (Liquidus), °C 1040
390
Melting Onset (Solidus), °C 980
380
Specific Heat Capacity, J/kg-K 480
410
Thermal Expansion, µm/m-K 10
27

Otherwise Unclassified Properties

Base Metal Price, % relative 60
11
Density, g/cm3 8.3
6.4
Embodied Carbon, kg CO2/kg material 9.9
3.0
Embodied Energy, MJ/kg 140
57
Embodied Water, L/kg 220
380

Common Calculations

Stiffness to Weight: Axial, points 12
7.5
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 14
12
Strength to Weight: Bending, points 15
15
Thermal Shock Resistance, points 17
8.6

Alloy Composition

Aluminum (Al), % 0 to 0.050
3.5 to 4.3
Boron (B), % 2.8 to 3.5
0
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0 to 0.060
0
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 0.5
0 to 0.075
Lead (Pb), % 0
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Nickel (Ni), % 90.1 to 93.3
0.0050 to 0.020
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 4.0 to 5.0
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