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As80 Aluminized Steel Tube

In the automotive aftermarket exhaust industry, material selection is always a balance between durability and cost. Unlike original equipment manufacturers

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As80 Aluminized Steel Tube

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AS80 Aluminized Steel Tube: The Lightweight Economy Coating for Aftermarket Exhaust Systems

In the automotive aftermarket exhaust industry, material selection is always a balance between durability and cost. Unlike original equipment manufacturers (OEMs) that often require 10-year vehicle lifetime performance, aftermarket exhaust producers usually target a shorter replacement cycle with competitive pricing.

This is why AS80 aluminized steel tube has become a popular choice for aftermarket exhaust systems. With a lower aluminum coating weight than AS120, AS80 provides sufficient corrosion resistance for typical replacement exhaust applications while reducing raw material costs.

This guide explains why AS80 is widely used in aftermarket exhaust manufacturing, how it compares with AS120, and how suppliers can optimize cost and product positioning.

1. What Is AS80 Aluminized Steel Tube?

AS80 refers to aluminized steel with approximately 80g/m² double-sided aluminum-silicon coating. The coating creates an aluminum oxide protection layer that improves resistance against oxidation, corrosion, and exhaust gas environments.

Parameter	AS80 Specification
Coating Type	Aluminum-silicon alloy coating
Coating Weight	Approx. 80g/m² (double side)
Main Application	Aftermarket exhaust systems
Typical Service Life Target	Approximately 3–5 years
Common Substrates	DX51D / DX53D aluminized steel

2. Why Does the Aftermarket Exhaust Industry Prefer AS80?

Aftermarket exhaust products have different requirements from OEM exhaust systems. The key factors are:

Competitive replacement part pricing
Reasonable corrosion resistance
Fast production cycles
Customer expectation of several years of service life
Lower manufacturing cost per vehicle

For many replacement exhaust applications, using AS120 or higher coating grades may increase cost without providing meaningful additional customer value.

Market	Typical Requirement	Preferred Coating
OEM Exhaust	10+ years vehicle lifetime	AS120 / SA1D
Aftermarket Exhaust	3–5 years replacement cycle	AS80
High-temperature racing exhaust	Extreme heat resistance	Higher heat-resistant grades

3. AS80 vs AS120: Cost and Performance Comparison

The main difference between AS80 and AS120 is coating weight. A heavier coating provides more aluminum reserve, but also increases material cost.

Item	AS80	AS120
Coating Weight	80g/m²	120g/m²
Material Cost	Lower	Higher
Typical Cost Difference	Base price	Approx. 8–15% higher
Corrosion Resistance	Good	Better
OEM Suitability	Limited	Common OEM choice
Aftermarket Suitability	Excellent	Over-spec for many applications

4. AS80 Salt Spray Performance and Real Road Experience

Laboratory corrosion testing provides a reference for coating durability. AS80 aluminized steel can provide reliable protection under moderate exhaust environments.

Test Item	AS80 Performance
Salt Spray Test	Approximately 500 hours reference level
Surface Protection	Aluminum oxide film prevents rapid oxidation
Road Environment	Suitable for normal climate aftermarket vehicles
Service Life	Typically 3–5 years depending on climate and usage

Actual service life depends on several factors:

Road salt exposure during winter
Driving distance and exhaust temperature
Short-trip condensation frequency
Tube wall thickness
Welding quality

5. Where AS80 Should Be Used

Component	AS80 Suitability	Recommendation
Rear exhaust pipe	Excellent	Preferred choice
Muffler replacement pipe	Good	Cost-effective solution
Intermediate exhaust section	Good	Depends on environment
Front exhaust pipe	Limited	Consider AS120
Turbo/EGR components	Not recommended	Use SA1D heat-resistant grades

6. AS80 Tube Manufacturing Cost Advantage

For aftermarket exhaust manufacturers, material cost directly affects final product competitiveness.

Cost Factor	AS80	AS120
Coating Material Consumption	Lower	Higher
Raw Material Cost	Lower	Higher
Tube Production Cost	More competitive	Higher
Market Position	Economy aftermarket	Premium replacement/OEM

7. Pricing Strategy Recommendations for Exhaust Manufacturers

Choosing the correct coating grade helps manufacturers avoid both over-engineering and premature failure.

Product Position	Recommended Material	Pricing Strategy
Budget replacement exhaust	AS80	Focus on competitive pricing
Mid-range aftermarket	AS80 + improved tube design	Balance price and durability
Premium replacement parts	AS120	Sell longer service life
OEM supply	AS120 / SA1D	Performance-oriented pricing

8. Common Mistakes When Selecting AS80

Using AS80 in extreme environments: Coastal regions with heavy salt exposure may require AS120.
Comparing only coating weight: Tube design and wall thickness also affect durability.
Ignoring welding quality: Poor weld areas can reduce exhaust life.
Using aftermarket standards for OEM projects: OEM durability requirements are much higher.

9. Why Choose Teda Ganghua AS80 Aluminized Steel Tube

Teda Ganghua supplies aluminized steel tube solutions for aftermarket exhaust manufacturers and automotive component producers worldwide.

Our products include AS80 aluminized steel tube, AS120 aluminized tube, and customized aluminized steel solutions based on customer requirements for cost, forming performance, and service life.

With strict control of coating weight, surface quality, mechanical properties, and production consistency, Teda Ganghua helps customers build competitive exhaust products while maintaining reliable performance.

Learn more:
Aluminized Steel Products

Conclusion

AS80 aluminized steel tube has become the preferred material for aftermarket exhaust systems because it delivers the right balance between cost and durability.

For customers requiring a 3–5 year service life, AS80 provides sufficient corrosion and oxidation protection without the additional cost of heavier coatings. For OEM applications or severe environments, AS120 or higher heat-resistant grades remain the better choice.

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