ASTM A789 S31803 Seamless Duplex Tube 2" OD with 200+ Ton Stock and 2-Week Delivery

S31803 duplex stainless steel combines the performance advantages of austenitic and ferritic steels, with yield strength nearly double that of traditional austenitic stainless steels. This material exhibits exceptional resistance to chloride stress corrosion cracking, pitting, and crevice corrosion, making it ideal for highly corrosive environments.

• Fluid conveyance systems for offshore oil and gas platforms
• Heat exchangers and pressure vessels in chemical processing plants
• Seawater desalination equipment

In high-pressure, high-temperature environments with highly corrosive media, SMLSCO's S31803 seamless tubes ensure long-term stability and safety for pipeline systems.

• Massive Inventory: Over 200 tons of S31803 seamless tube in stock covering 1/4" to 2" standard sizes
• 2-Week On-Time Delivery: Standard stock items prepared and delivered within 2 weeks
• Authoritative Certifications: PED/ISO/AD2000 certified for international quality standards
• Full Traceability: Comprehensive quality documentation including Material Test Certificates and 100% pre-shipment inspection reports

SMLSCO prioritizes quality with a rigorous three-tier inspection system:

• Sourcing high-quality raw materials from certified suppliers like TSINGSHAN
• Dimensional and performance inspections at critical production stages
• 100% pre-shipment inspection covering dimensions and surface finish
• 100% eddy current testing for precision tubes

All inspections are meticulously documented and support third-party verification.