2205 duplex stainless steel pipe manufactured to ASTM A789 / A790, with outer diameter 21.3 mm and wall thickness 2.77 mm. Duplex 2205 combines roughly double the yield strength of standard austenitic grades with excellent resistance to stress corrosion cracking and pitting, ideal for aggressive offshore and chemical service. The duplex microstructure of ferrite and austenite gives this pipe roughly twice the yield strength of 316L together with superior resistance to chloride stress corrosion cracking.
Every pipe is produced under strict quality control, with full traceability from the raw coil or billet to the finished tube. Mill test certificates, chemical composition reports and mechanical property data are available with every shipment, and third-party inspection by SGS, BV or TUV can be arranged upon request.
| Parameter | Details |
|---|---|
| Material Grade | 2205 |
| Manufacturing Standard | ASTM A789 / A790 |
| Outer Diameter (OD) | 21.3 mm |
| Wall Thickness (WT) | 2.77 mm |
| Length | 6 m (random or cut lengths) |
| Surface Finish | Annealed and pickled |
| End Finish | Plain or beveled |
| Packaging | Plastic end caps, bundles secured by steel strips or export wooden crates |
This 2205 duplex stainless steel pipe is widely used in the following fields:
Custom sizes and non-standard specifications are available on request. Contact us for a quotation with your required OD, wall thickness and quantity, and our team will reply within 24 hours.