Zhejiang Seamless Pipe Co., Ltd.
                                                                                                           
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TP2205 Duplex Steel Seamless Pipe 1/4"-24" OD with ISO/PED Certification for Marine Corrosion Resistance

Price Negotiable
Price: Above 2usd/kg
MOQ: 1pc
Delivery Time: 2 weeks/container
Brand: SMLSCO
Product Description
TP2205 Duplex Steel Seamless Pipe Overview
TP2205 duplex stainless steel seamless pipe combines austenite-ferrite structure with exceptional corrosion resistance, making it ideal for demanding marine applications. With high yield strength and excellent pitting resistance, this pipe ensures long-term reliability in chloride-rich environments.
Technical Specifications
AttributeValue
MaterialTP2205
CertificatesISO, PED
PackageWoven Bag
Surface TreatmentAnnealed & Pickled
LengthStandard 6m / Customized available
Manufacturing MethodSeamless (Cold-drawn)
Size RangeOD: 1/4" - 24", WT: Sch5s - XXS
StandardsASTM A790
Material Properties
TP2205 features a balanced austenite-ferrite duplex structure with 25% Cr + 5% Ni + 3% Mo composition, providing superior resistance to pitting and crevice corrosion in seawater and chloride-containing media. The material offers yield strength approximately 1.8 times higher than 304L stainless steel, maintaining structural stability under medium-to-high pressure pulsating loads.
Marine Industry Applications
TP2205 duplex steel seamless pipes are essential for modern marine engineering, offering twice the strength of traditional 316L stainless steel while enabling thinner pipe walls for weight reduction and fuel efficiency.
Key Application Areas:
  • Exhaust gas scrubbing systems (desulfurization towers) - resistant to high temperature and high acidity scrubbing water corrosion
  • Ballast water treatment systems - withstands corrosive environments during chemical or physical treatment processes
  • Seawater cooling and fire protection systems - ensures stability and reliability for pipelines in long-term seawater contact
  • Chemical cargo oil pipelines - suitable for transporting corrosive chemicals
Packaging & Quality Assurance
For sea LCL shipments, we use plywood wooden boxes with pipe caps. Full container loads are bundled with woven bags with pipe caps on both ends. All wooden packaging meets ISPM-15 standards for direct entry into European and American automated warehousing systems. Anti-salt spray and anti-collision design prevents rust and surface damage during long-distance transport.
Manufacturing Process
Our TP2205 seamless pipes undergo advanced manufacturing including high-quality steel billet selection, precise piercing, multi-pass cold drawing or cold rolling for exact dimensional tolerances, solution annealing for optimized crystal structure, and pickling/passivation for enhanced corrosion resistance.
TP2205 duplex steel seamless pipe manufacturing process showing cold drawing and annealing stages
TP2205 seamless pipes in stock ready for marine applications

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Zhejiang Seamless Pipe Co., Ltd.
Location No. 501, Changsheng South Road, Jiaxing, Zhejiang, China
Contact Person Lee

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