Stainless Steel Pipes
Seamless & welded stainless steel pipes in austenitic, duplex and super-duplex grades for critical, corrosion-resistant service.
Product Overview
Ratnaraj Overseas supplies seamless and welded stainless steel pipes engineered for high-corrosion, high-temperature and hygienic service environments. Our stockyards carry austenitic, duplex and super-duplex grades sourced and tested against international specifications.
Every consignment leaves our warehouse with complete mill test certificates (EN 10204 3.1), giving your project full traceability from heat number through to final dimensional inspection.
Stainless Steel Pipes — In Our Stockyard
Available Grades
| Grade | Standard | Typical Service |
|---|---|---|
| TP304 / 304L | ASTM A312 / A358 | General purpose austenitic — food, pharma & chemical service |
| TP316 / 316L | ASTM A312 / A358 | Enhanced corrosion resistance — marine & chemical processing |
| TP310 / 310S | ASTM A312 | High-temperature oxidation resistance up to 1150°C |
| TP321 / 321H | ASTM A312 | Titanium-stabilised for elevated temperature service |
| TP347 / 347H | ASTM A312 | Niobium-stabilised, high-temperature pressure piping |
| Duplex 2205 | ASTM A790 | High strength, superior chloride stress-corrosion resistance |
| Super Duplex 2507 | ASTM A790 | Offshore & seawater piping, extreme pitting resistance |
Specifications
- Outside Diameter6mm – 610mm
- Wall Thickness0.8mm – 40mm
- LengthUp to 6m / 12m, random or cut
- ManufactureSeamless, ERW, EFW
- End FinishPlain, Bevelled, Threaded
- TestingHydrostatic, Eddy Current, RT/UT
- CertificationEN 10204 3.1 Mill Test Cert.
- PackingWooden crates, bundled with end caps
Technical Note — Supplied in seamless and welded construction across schedules 5S to XXS, with pickled, polished or bright-annealed finish. Dimensional tolerance and ovality are held per ASTM A999 / A530 general requirements for stainless steel pipe, and every heat is chemically and mechanically tested before dispatch.
Applications
Oil & Gas Processing
Chemical & Petrochemical
Food & Pharmaceutical
Marine & Shipbuilding
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