- Description
Description
DX53D+AS120 Aluminized Steel Pipe: Deep Drawing Grade for Complex Exhaust Component Forming
DX53D+AS120 aluminized steel pipe combines a deep-drawing grade DX53D steel substrate with a double-sided 120 g/m² Al-Si aluminized coating (AS120). This combination is specifically engineered for complex forming, multi-stage stamping, and automotive exhaust system components.
It is widely used where both excellent formability and high-temperature corrosion resistance are required at the same time.
1. What DX53D+AS120 Actually Means
| Component | Meaning | Function |
|---|---|---|
| DX53D | Deep drawing quality steel (EN standard) | Excellent ductility for complex forming |
| AS120 | Aluminized coating 120 g/m² (both sides) | High oxidation & corrosion resistance |
| Al-Si coating | Aluminum + ~10% Silicon | Improves coating stability during forming & heat exposure |
2. Why DX53D Is Critical for Exhaust Forming
| Property | Benefit in Exhaust Manufacturing |
|---|---|
| High elongation | Supports deep drawing and complex geometry forming |
| Low yield strength | Reduces cracking during bending and hydroforming |
| Stable forming behavior | Consistent performance in mass production stamping |
DX53D is often selected when exhaust parts require multi-step forming without cracking or coating damage.
3. AS120 Coating Advantage (120 g/m² Double-Sided)
| Feature | Performance Benefit |
|---|---|
| High coating mass (120 g/m²) | Stronger corrosion resistance and longer service life |
| Double-sided protection | Internal + external pipe protection |
| Al-Si layer stability | Resists oxidation up to ~800°C in exhaust environments |
4. Exhaust System Manufacturing Requirements
| Requirement | Why DX53D+AS120 Works |
|---|---|
| Complex geometry forming | High ductility of DX53D base steel |
| Mandrel bending | Stable coating adhesion prevents cracking |
| Thermal cycling resistance | Al-Si coating resists oxidation at high temperature |
| Mass production consistency | Stable mechanical properties for stamping lines |
5. Key Application Areas
| Industry | Application |
|---|---|
| Automotive | Exhaust pipes, resonators, catalytic converter shells |
| OEM forming plants | Deep-drawn exhaust components |
| Heat systems | Moderate-temperature ducting and connectors |
6. Typical Order Parameters Checklist
| Parameter | Common Specification |
|---|---|
| Steel grade | DX53D |
| Coating type | AS120 (Al-Si aluminized) |
| Coating mass | 120 g/m² (both sides) |
| Tube diameter | Custom (typical exhaust sizes 25–63 mm) |
| Wall thickness | 1.0 – 2.5 mm |
| Length | Cut-to-length / coil-based forming |
7. Why Buyers Choose Teda Ganghua
At Teda Ganghua, we supply DX53D+AS120 aluminized steel pipes designed for deep drawing, complex forming, and automotive exhaust system manufacturing. Our products ensure stable coating adhesion and consistent forming performance in high-volume production.
We support OEM cutting, forming preparation, and export packaging for global exhaust system manufacturers.
Explore our aluminized steel tube products here:
Aluminized Steel Tube Products
Conclusion
DX53D+AS120 aluminized steel pipe is a premium solution for complex exhaust component forming. Its combination of deep drawing capability and high-mass aluminized coating ensures both manufacturability and long-term high-temperature corrosion resistance.
