Aluminum-zinc Alloy Cage
Aluminum-zinc alloy cage, also called 5% Al-Zn alloy gabion, 10% Al-Zn alloy, Galfan gabion.
5%-10% Al-zn alloy (also called Galfan or rare earth alloy) is one of the emerging material in recent year, which used to replace of traditional zinc coating.
Experiments show that its corrosion resistance is 3 times more than traditional zinc coating, so it's getting more and more attention, European and American developed countries are using 5%-10% Al-Zn alloy gabion cages instead of the zinc coating gabion cages.
By using Al-Zn alloy wire woven into rectangular is 3 times more than traditional zinc coating, so it's getting more and more attention, uropean and American developed countries are using 5%-10% Al-Zn alloy gabion cages instead of the zinc coating gabion cages.
By using Al-Zn alloy wire woven into rectangular gabion cages, it's service life is about 70-80 years, it's 3 times of zinc coating steel wire.
The Al-Zn alloy wire accord with the national standard: GB/T 20492-2006.
Main size of 5%-10% Al-zn alloy wire:
| Nominal diameter and tolerance of the wire | Steel plating adhesion test core wire diameter | ||
| Nominal diameter | Allowable tolerances | Nominal diameter | Core wire diameter and wire nominal diameter ratio |
| >1.24-2.25 | ±0.03 | >1.24-2.25 | 3 |
| >2.25-3 | ±0.04 | >2.25-3 | 4 |
| >3-3.5 | ±0.05 | >3-3.5 | 5 |
| >3.5-5.5 | ±0.06 | >3.5-5.5 | 5 |
| The chemical composition of zinc-5%-Aluminum-rare earth alloy ingot | |||||||
| AL | Ce+La | Fe no more than | Si no more than | Cd no more than | Sn no more than | Each of other chemical elements no more than | Zn |
| 4.7-6.2 | 0.03-0.10 | 0.075 | 0.015 | 0.005 | 0.002 | 0.002 | Margin |
| Dimensions | Mesh Size | |||||
| 8 x 10 | 6 x 8 | |||||
| Length | Width | Height | Galvanized or coated | Galvanized or coated | ||
| Mesh wire diameter | Zinc Weight | Mesh wire diameter | Zinc Weight | |||
| 2m | 1m | 1m | 2.7mm | >245/m2 | 2.0mm | >215g/m2 |
| 3m | 1m | 1m | Edge wire diameter | Zinc Weight | Edge wire diameter | Zinc Weight |
| 4m | 1m | 1m | 3.4mm | >265g/m2 | 2.7mm | >245g/m2 |
| 6m | 1m | 1m | Tie wire specifications: 2.7mm | Tie wire specifications: 2.0mm | ||