Al-Si Coated Steel Tube Dx54d+As
- Description
Description
Al-Si Coated Steel Tube Dx54D+AS: Aluminum-Silicon Coated Steel Pipe Overview
Al-Si coated steel tube Dx54D+AS is a high-performance coated steel pipe made from deep-drawing grade low-carbon steel (Dx54D) with an aluminum-silicon (Al-Si) alloy coating. It is designed to provide excellent corrosion resistance, high-temperature stability, and long service life in demanding industrial environments.
This material is widely used in automotive exhaust systems, heat exchangers, HVAC pipelines, and thermal equipment where oxidation resistance and durability are critical.
1. What Is Al-Si Coated Steel Tube Dx54D+AS?
| Item | Description |
|---|---|
| Base Material | Dx54D deep-drawing low carbon steel |
| Coating Type | Aluminum-Silicon (Al-Si) alloy coating |
| Coating Structure | Aluminum + silicon composite layer |
| Product Form | Welded or formed steel tube |
| Main Feature | High corrosion resistance and heat resistance |
2. Key Performance Advantages
- Excellent oxidation resistance: Al-Si coating forms a stable protective layer at high temperatures
- High heat resistance: Suitable for exhaust and thermal systems
- Good formability: Dx54D steel supports bending, stamping, and deep drawing
- Long service life: Reduces scaling and surface degradation
3. Comparison with Other Coated Steel Tubes
| Type | Corrosion Resistance | Heat Resistance | Cost Level |
|---|---|---|---|
| Al-Si Coated (Dx54D+AS) | High | Very High | Medium |
| Galvanized Steel Tube | Medium | Low | Low |
| Stainless Steel Tube | Very High | High | High |
4. Common Applications
| Industry | Application |
|---|---|
| Automotive | Exhaust pipes, emission systems, heat shields |
| HVAC systems | Air ducts and heat exchange pipelines |
| Industrial equipment | Thermal pipelines and protective tubing |
| Heat exchange systems | High-temperature fluid transfer tubes |
5. Why Al-Si Coating Is Important
The Al-Si coating combines aluminum’s corrosion resistance with silicon’s high-temperature stability. This creates a dense and stable surface layer that prevents oxidation and scaling even under continuous heat exposure.
- Forms a protective oxide barrier at high temperature
- Improves thermal stability and heat reflection
- Reduces surface scaling and rust formation
- Extends service life in harsh environments
6. Size and Specification Range
| Item | Typical Range |
|---|---|
| Outer Diameter | 15 mm – 101.6 mm (custom available) |
| Wall Thickness | 0.5 mm – 3.0 mm |
| Length | 3 m / 6 m / customized |
| Standards | EN 10346 / ASTM A463 / OEM specification |
7. Industrial Supply Capability
Teda Ganghua supplies Al-Si coated steel tubes Dx54D+AS with stable quality control, precise dimensional tolerance, and export-grade packaging. Our products are widely used in automotive, HVAC, and industrial thermal systems worldwide.
For related products, visit aluminized steel tubes.
FAQ
1. What does Dx54D+AS mean?
It refers to Dx54D deep-drawing steel with an aluminum-silicon coating (Al-Si).
2. What is Al-Si coated steel used for?
It is used in automotive exhaust systems, HVAC pipes, and heat-resistant applications.
3. Is Al-Si coating better than galvanizing?
Yes, it performs better in high-temperature and oxidation environments.
4. Can Al-Si coated tubes be welded?
Yes, but local coating removal is recommended before welding.
5. Does Teda Ganghua supply Al-Si coated steel tubes?
Yes, Teda Ganghua supplies high-quality Dx54D+AS Al-Si coated steel tubes for global customers.
