3 Inch Stainless Steel Exhaust Pipe 90 Degree Elbow High Temp Corrosion Resistant Exhaust Bend
Premium 3 inch stainless steel exhaust pipe 90 degree elbow for auto, marine & generator exhaust systems. 304/316 stainless, seamless mandrel bent, high temperature resistant, custom sizes & wholesale supply.
Description
3 Inch Stainless Steel Exhaust Pipe 90 Degree Elbow is a specialized steering pipe fitting for automotive modification, ships, generator sets, and engineering machinery exhaust systems. It is compatible with 3-inch standard exhaust pipes and can achieve 90 ° airflow steering, balancing low exhaust resistance and long-term high temperature and corrosion resistance.
II. Core Technical Parameters of seamless stainless steel 90 degree elbow
This product adopts a seamless one-piece bending process. All dimensions strictly follow international pipe fitting standards ASME B16.9 and ASTM A312, with unified and standardized parameters, suitable for overseas bulk procurement:
| Parameter | Specification |
|---|---|
| Nominal pipe size | 3 inch (DN80) |
| Forming process | mandrel bent stainless steel mandrel bending |
| Main materials | 304 / 316 stainless steel |
| Bend angle | 90°, long radius 1.5D |
| Operating temperature | -20℃ ~ 850℃ |
| Connection type | Plain ends for welding; V-band clamp ends available on request |
| Surface treatment | Mechanical polishing / pickling and passivation |
III. Process advantages of mandrel bent stainless exhaust elbow
Unlike ordinary stamped and welded elbows, the mandrel bent stainless exhaust elbow is cold-formed by CNC mandrel bending in one piece, with no welded seams, a smooth inner wall free of carbon deposit dead zones, significantly reducing exhaust backpressure and improving engine power output. After pickling and passivation, a dense anti-oxidation film is formed to resist high-temperature exhaust oxidation and coastal salt spray corrosion, offering a service life far exceeding that of carbon steel elbows.
IV. Multi-scenario applications of 304 stainless steel exhaust pipe elbow
-
Exhaust system modification for fuel-powered vehicles and diesel vehicles;
-
Marine exhaust piping for yachts and fishing boats;
-
Exhaust flue pipes for industrial generator sets and agricultural machinery;
-
High-temperature exhaust retrofitting for outdoor boilers and thermal equipment.
V. Bulk procurement supporting services
OEM size customization is supported, with original material test reports provided. In-stock inventory enables fast delivery, and free sample testing is available. The full range of fittings has passed dual tests for high-temperature pressure resistance and salt spray corrosion, meeting the procurement access requirements for the European and American HVAC and automotive modification industries.
4. Buyer Q&A
Q1: How to choose between 304 and 316 for the 3 Inch Stainless Steel Exhaust Pipe 90 Degree Elbow?
A: For ordinary land vehicles and generator sets, 304 stainless steel is sufficient and more cost-effective. For marine applications, coastal equipment, or long-term high-humidity salt-spray conditions, 316 stainless steel is recommended – its molybdenum content resists chloride ion corrosion and provides stronger high-temperature oxidation resistance.
Q2: Does this mandrel bent stainless steel 90° exhaust elbow support custom length and connection types?
A: Yes. We can customize straight leg lengths, V-band clamp ends, and threaded ends. We can also produce short-radius 1D elbows on request. Complete dimensional drawings, material certificates, and CE certification documents are available to suit overseas engineering bulk procurement.
More Products
