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AWS BNi-5a vs. ZA-27

AWS BNi-5a belongs to the nickel alloys classification, while ZA-27 belongs to the zinc alloys. There are 19 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-5a and the bottom bar is ZA-27.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
78
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
31
Tensile Strength: Ultimate (UTS), MPa 480
400 to 430

Thermal Properties

Latent Heat of Fusion, J/g 420
130
Melting Completion (Liquidus), °C 1150
480
Melting Onset (Solidus), °C 1070
380
Specific Heat Capacity, J/kg-K 500
530
Thermal Expansion, µm/m-K 12
26

Otherwise Unclassified Properties

Base Metal Price, % relative 55
11
Density, g/cm3 7.9
5.0
Embodied Carbon, kg CO2/kg material 9.0
4.2
Embodied Energy, MJ/kg 130
80
Embodied Water, L/kg 260
570

Common Calculations

Stiffness to Weight: Axial, points 13
8.6
Stiffness to Weight: Bending, points 24
28
Strength to Weight: Axial, points 17
22 to 24
Strength to Weight: Bending, points 17
24 to 25
Thermal Shock Resistance, points 15
14 to 15

Alloy Composition

Aluminum (Al), % 0 to 0.050
25 to 28
Boron (B), % 1.0 to 1.5
0
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 18.5 to 19.5
0
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
2.0 to 2.5
Iron (Fe), % 0 to 0.5
0 to 0.1
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.010 to 0.020
Nickel (Ni), % 70.1 to 73.5
0 to 0.020
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 7.0 to 7.5
0 to 0.080
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0
69.3 to 73
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0