- Description
Description
Dx54D+AS120 Aluminized Steel Tube: High Corrosion-Resistant Specification Overview
Dx54D+AS120 aluminized steel tube is a high-performance coated steel pipe made from deep-drawing grade low-carbon steel (Dx54D) with an aluminum-silicon alloy coating (AS120). It is designed for environments requiring strong corrosion resistance, heat resistance, and long service life.
This material is widely used in automotive exhaust systems, heat exchangers, HVAC systems, and industrial thermal equipment where both strength and anti-oxidation performance are required.
1. What Is Dx54D+AS120 Aluminized Steel Tube?
| Item | Description |
|---|---|
| Base Material | Dx54D deep-drawing low carbon steel |
| Coating Type | Aluminum-Silicon alloy (Al-Si) |
| Coating Weight | AS120 (approx. 120 g/m² total both sides) |
| Product Form | Welded or formed steel tube |
| Main Feature | High corrosion and heat resistance |
2. Key Performance Advantages
Dx54D+AS120 combines the formability of low-carbon steel with the protective properties of aluminized coating, making it suitable for harsh working environments.
- Excellent corrosion resistance: Strong protection against moisture, acid condensate, and oxidizing gases
- High-temperature stability: Suitable for heat exposure environments such as exhaust and heating systems
- Good formability: Dx54D base steel supports bending, flaring, and deep forming
- Long service life: Al-Si coating reduces rust and surface degradation
3. Common Applications
| Industry | Application |
|---|---|
| Automotive | Exhaust pipes, emission systems, fuel and air ducts |
| HVAC systems | Refrigerant and heat exchange pipelines |
| Industrial heating | Radiant heating tubes and furnace components |
| Heat exchangers | Thermal transfer tubing systems |
4. Why AS120 Coating Is Important
The AS120 coating refers to an aluminum-silicon alloy layer that forms a stable protective barrier on the steel surface. This layer improves oxidation resistance and prevents rapid corrosion in high-temperature environments.
- Forms a dense protective oxide layer
- Improves heat reflectivity and thermal stability
- Reduces scaling at elevated temperatures
- Enhances durability in humid or corrosive environments
5. 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 |
6. Industrial Supply Capability
Teda Ganghua supplies Dx54D+AS120 aluminized steel tubes with stable quality control, precise dimensional tolerance, and export-grade packaging. Products are widely used in automotive systems, HVAC pipelines, and industrial heat applications worldwide.
For related products, visit aluminized steel tubes.
FAQ
1. What does Dx54D+AS120 mean?
Dx54D is a deep-drawing steel grade, and AS120 refers to an aluminum-silicon coating of about 120 g/m².
2. What is aluminized steel tube used for?
It is mainly used in automotive exhaust systems, heat exchangers, and HVAC pipelines.
3. Is aluminized steel better than galvanized steel?
Yes, it offers better high-temperature resistance and oxidation protection.
4. Can Dx54D+AS120 be welded?
Yes, but coating may need local removal to ensure welding quality.
5. Does Teda Ganghua supply aluminized steel tubes?
Yes, Teda Ganghua provides high-quality Dx54D+AS120 aluminized steel tubes for global industrial use.
