Duplex Steel Seamless Tube

UNS S31803 duplex stainless steel seamless tube offers high strength and exceptional corrosion resistance for heat exchangers, boilers, and offshore piping. Bright annealed surface, ASTM A789 compliant, with 100% nondestructive testing. Supports SGS/TUV inspection and custom lengths.

High-strength S31803 duplex stainless steel seamless tubes with exceptional corrosion resistance for demanding applications. Features 1/4" to 2" OD range, bright annealing process, 100% eddy current testing, and PED/ISO/AD2000 certifications. Ideal for offshore oil & gas, chemical processing, and seawater desalination systems.

S32750 super duplex seamless tube with PREN ≥40 and min yield strength ≥550 MPa. Stock available for fast 2-week delivery. Certified PED, ISO 9001, AD2000. Ideal for marine, oil and gas, and chemical high-pressure applications.

SMLSCO supplies high-strength 2507 super duplex seamless hydraulic tubing with PREN ≥40. Certified to PED and ISO 9001, our tubes offer double the yield strength of 316L. Available in bright annealed finish with 100% eddy current and hydrostatic testing. Rapid global delivery within 2 weeks.

Cold drawn 2205 super duplex seamless tube per ASTM A789. 3/4 OD x 0.065 WT. High strength, PREN ≥35, resists chloride corrosion. Ideal for offshore, chemical, and seawater systems. PED/ISO certified. Stock available for fast delivery.

ASTM A789 32205 duplex stainless steel heat-treated tubes offer exceptional corrosion resistance and high strength for demanding industrial applications. Featuring 6.35mm-50.8mm outer diameter range, PED/ISO/AD2000 certifications, and 2-week delivery. Ideal for chemical processing, marine engineering, and oil & gas pressure systems.

Cold drawn S32750 super duplex seamless tubes with 6m fixed length, 1/4"-2" OD range, and bright annealed finish. Superior corrosion resistance and double the strength of 316L stainless steel. Certified to PED, ISO, and AD2000 standards with 100% eddy current testing. Ideal for offshore, petrochemical, and desalination heat exchangers.

ASTM A789 certified duplex steel seamless tubes with polished 320# OD surface finish. Available in Duplex 2205 and Super Duplex 2507 grades for chemical processing, oil & gas, and desalination applications. Features ISO/PED certifications, cold drawn manufacturing, and comprehensive quality control for reliable performance in corrosive environments.

32750 2205 duplex steel seamless pressure tubes offer exceptional corrosion resistance against pitting, crevice corrosion, and stress corrosion cracking. With density of 7.8 g/cm³ and thermal conductivity of 19.0 W/m·K, these tubes provide reliable performance for offshore, chemical processing, and oil and gas applications.