Dx54d+As120 Hot-Dip Aluminized Tubing
- Description
Description
Dx54D+AS120 Hot-Dip Aluminized Tubing: High-Performance Coated Steel Pipe Overview
Dx54D+AS120 hot-dip aluminized tubing is a high-performance steel pipe made from deep-drawing grade low-carbon steel (Dx54D) with a hot-dip aluminum-silicon alloy coating (AS120). It is engineered for excellent corrosion resistance, high-temperature stability, and long-term durability in demanding industrial environments.
This type of aluminized tubing is widely used in automotive exhaust systems, heat exchangers, HVAC pipelines, and thermal engineering applications where oxidation resistance and heat endurance are critical.
1. What Is Dx54D+AS120 Hot-Dip Aluminized Tubing?
| Item | Description |
|---|---|
| Base Material | Dx54D deep-drawing low carbon steel |
| Coating Type | Hot-dip Aluminum-Silicon alloy (Al-Si) |
| Coating Weight | AS120 (approx. 120 g/m² total both sides) |
| Manufacturing Process | Hot-dip aluminizing + tube forming |
| Main Feature | High corrosion resistance and heat resistance |
2. Key Performance Advantages
- Excellent oxidation resistance: Al-Si coating forms a dense protective layer at high temperature
- Superior heat resistance: Suitable for continuous thermal exposure environments
- Good formability: Dx54D base steel supports bending, stamping, and forming
- Long service life: Reduces scaling, rust, and surface degradation
3. AS120 Coating Function and Importance
The AS120 aluminum-silicon coating provides a strong metallurgical bond with the steel substrate, forming a stable protective layer that improves performance in both high-temperature and corrosive environments.
- Enhances high-temperature oxidation resistance
- Improves surface stability under thermal cycling
- Reduces scaling and surface cracking
- Extends service life in harsh operating conditions
4. Common Applications
| Industry | Application |
|---|---|
| Automotive | Exhaust systems, emission pipes, heat shields |
| HVAC systems | Air ducts and heat exchange pipelines |
| Industrial heating | Furnace tubing and thermal transport systems |
| Heat exchangers | High-temperature fluid transfer tubing |
5. Hot-Dip Aluminizing vs Other Coating Types
| Coating Type | Corrosion Resistance | Heat Resistance | Service Life |
|---|---|---|---|
| Hot-Dip Aluminized (AS120) | High | Very High | Long |
| Galvanized Steel | Medium | Low | Medium |
| Uncoated Carbon Steel | Low | Medium | Short |
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 / custom cut |
| Standards | EN 10346 / ASTM A463 / OEM specification |
7. Industrial Supply Capability
Teda Ganghua supplies Dx54D+AS120 hot-dip aluminized tubing with strict quality control, stable coating performance, and precise dimensional accuracy. Our products are widely used in automotive, HVAC, and industrial thermal systems across global markets.
For related products, visit aluminized steel tubes.
FAQ
1. What is Dx54D+AS120 hot-dip aluminized tubing?
It is a steel tube made from Dx54D steel with a hot-dip aluminum-silicon coating (AS120).
2. What are its main advantages?
It offers excellent corrosion resistance and high-temperature stability.
3. Where is it commonly used?
It is used in automotive exhaust systems, HVAC ducts, and heat exchangers.
4. Is it better than galvanized tubing?
Yes, especially in high-temperature environments where galvanized steel performs poorly.
5. Does Teda Ganghua supply this product?
Yes, Teda Ganghua supplies high-quality Dx54D+AS120 hot-dip aluminized tubing for global customers.
