Description
ZnAl(Zinc Aluminium alloy wire) is a product
in the thermal spray field, mainly due to technical and economic benefits listed below:
- Low porosity, very thin pores in the coating,
- Higher electrical-chemical potential and increased sacrified capacity
- Al acts as an inert coat, minimizing the dissolution of Zn, favouring the longer cycle life of steel and reducing the risk of white rust
- The coating has a density of 4,97 gr/cm³ and one pass in spray covers a surface of 20-30% higher than Zn only
- A sealing improves the adhesion
- Melting temperature is 385 °C (lower than Zn) with less over-spray, less powders and Zn fumes
- In avarage each pass of sprayng is 50 µ
- The corrosion resistance is especially effective on Steel, against sodium chloride (salt), sulfur dioxide and marine environments
Applications:
Steel infrastructure: bridge, piers, freeway
exterior of steel and iron pipes
Gas cylinders
Product code:ZA
Chemical composition:
| Item | Main elements (%) (min) | Impurities (≤)%(max) |
| Zn | Al | Fe | Pb | Cd | Cu | ∑ |
| ZA15 | REMAINING | 14-16 | 0.05 | 0.005 | 0.002 | 0.01 | 0.1 |
Mechanical characteristics:
| Item | Form | Tensile Strength Rm (N/mm2) | Elongation After Fracture A 100mm(%) | Specific Gravity (g/cm3) | Melting Range (ºC) | Volume Resistivity (mΩ·mm2/m) 20ºC |
| ZA15 | COLD-DRAW(Y) | ≥ 100 | ≥ 30 | 5.6-5.8 | 382-455 | ≤ 56 |
| ZA15 | ANNEAL(O) | ≥ 200 | ≥ 30 | 5.6-5.8 | 382-455 | ≤ 56 |
Diameter: 1.0mm≤Ф≤4.76mm
| DIAMETER | PERMISSIBLE |
| (MM) | VARIATION |
| 1.0≤Ф≤1.65 | +0.00,-0.03 |
| 1.65<Ф≤2.00 | +0.00,-0.04 |
| 2.00<Ф≤2.30 | +0.00,-0.05 |
| 2.30<Ф≤3.20 | +0.00,-0.06 |
| 3.20<Ф≤4.76 | +0.00,-0.07 |
Product packing:
| Hard paper drum | 100-230 kg | outer diameter 550 mm, inner diameter300mm, variable height |
| Hard paper drum | 20-50 kg | outer diameter 400 mm, inner diameter190mm. variable height |
| Plastic spool | 15 kg | flange270mm, width103mm, center hole:55mm |
| Steel drum | 250 kg | outer diameter 560 mm, inner diameter310mm, height 800mm |
| bundle | 20-25 kg | |
Pallet will be used, such as 1100mmX1100mm, 1200mmX800mm, 1000mmX1000mm, 800mmX800mm.
Thermal spraying with Zinc-aluminium alloy wire Zn85Al15 can be easily applied to a properly blasted surface up to a 0,5 mm thickness in just one application. The coating is dry on contact allowing sealers and/or topcoats to be applied immediately when specified. One application can last over 15 years without the need for maintenance. Long-lasting protection of the surface.
We are looking forward to your cooperation!
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