Stainless Oval Exhaust Tubing

Our Stainless Oval Exhaust Tubing is a flat oval stainless steel welded tube manufactured in accordance with ASTM A554 standards. The oval cross-section not only reduces ground clearance, saving chassis space, but also reduces exhaust backpressure, resulting in a richer exhaust sound. Stainless steel offers excellent corrosion resistance, resisting exhaust gas corrosion, making it ideal for automotive and motorcycle exhaust systems.
Outer Diameter:38×1938×19mm-100×50100×50mm (customizable)
Wall Thickness: 0.8mm-3mm (customizable)
Length: Can be customized upon request
Steel Grade:301 302 304 304L 305 309S 309S-Cb 310S 316 316L 317 321 330 347 429 430 430-Ti

Products Description

Our Advantages

1. Material Advantages

Our stainless oval exhaust tubing is made of high-quality 304/316L material, offering excellent high-temperature and corrosion resistance. Welding is performed under full nitrogen shielding and pure hydrogen annealing to ensure strong welds.
Our tubing is inspected with a spectrometer to ensure compliance with standard specifications.

2. Weld Quality

Our stainless oval exhaust tubing undergoes eddy current testing and hydrostatic pressure testing to ensure surface defects such as cracks and inclusions, and to ensure a complete seal.
The tubing undergoes flattening and flaring tests to demonstrate excellent ductility, confirming that the welds can withstand bending, flanging, and vibration during exhaust system assembly and repair.

3. Surface Quality

Our tubing is pickled, passivated, and mirror-finished, achieving both corrosion resistance and aesthetics, meeting automotive and interior design standards.
We offer a variety of finishes, including satin and brushed, to provide specialized solutions.

4. Packaging and Shipping

We offer a variety of packaging options, including plastic caps, plastic film, woven bags, and wooden crates, to prevent damage or contamination during transportation. We offer moisture-proof and rust-proof packaging, ensuring each package is clearly labeled and has a traceability code.
We offer a variety of shipping methods, including sea, land, air, and express delivery. We also offer sample shipping.

application areas

Automotive Exhaust Systems: Suitable for main exhaust pipes, muffler inlet and outlet connections, catalytic converters, and resonator pipes for passenger cars, commercial vehicles, and performance vehicles.
Motorcycle Exhaust Systems: Suitable for headers, center pipes, connecting pipes, tail pipes, and muffler housings.
Marine Exhaust Systems: Suitable for engine exhaust ports and cooling water discharge pipe components for ships and yachts.

Chemical Composition

Element	C (max)	Mn (max)	Si (max)	Cr (%)	Ni (%)	Mo (%)	Fe (%)
304	0.08	2.00	1.00	18.0–20.0	8.0–10.5	-	Balance
316	0.08	2.00	1.00	16.0–18.0	10.0–14.0	2.0–3.0	Balance
409	0.03	1.00	1.00	10.5–11.75	≤0.5	-	Balance
430	0.12	1.00	1.00	16.0–18.0	≤0.75	-	Balance

Mechanical Properties

Property	Tensile Strength (MPa)	Yield Strength 0.2% (MPa)	Elongation (%)
304	≥515	≥205	≥40
316	≥515	≥205	≥40
409	≥380	≥170	≥20
430	≥450	≥205	≥22

Possible Alternative Grades

Alternative Grades	Reasons
904L	Excellent chloride resistance, suitable for marine or chemical environments.
321	Titanium-stabilized grade, offering improved resistance to high-temperature oxidation and intergranular corrosion in exhaust gas environments.
439	Titanium-stabilized ferritic grade, offering improved weldability and corrosion resistance compared to 430.