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Duplex & Super Duplex Pipes & Tubes

**Duplex & Super Duplex Pipes & Tubes** are high-performance stainless steel products known for their excellent combination of strength, corrosion resistance, and durability. These pipes and tubes offer superior resistance to pitting, crevice corrosion, and stress corrosion cracking, making them ideal for demanding applications in industries such as oil & gas, chemical processing, marine, and desalination. With higher mechanical strength than conventional austenitic stainless steels, Duplex and Super Duplex grades ensure longer service life and reliable performance in harsh and corrosive environments.

Specification Table

Specification Details
Grades Duplex 2205, Duplex 2304, Super Duplex 2507, Super Duplex Z100
UNS No. S32205, S32304, S32750, S32760
Standards ASTM A790 (Seamless & Welded Pipes)
ASTM A789 (Tubes)
ASME SA790 / SA789
EN 10216-5 / EN 10297-2
Type Seamless, Welded, ERW, EFW
Outer Diameter ½” NB to 48” NB
Wall Thickness SCH 10, SCH 20, SCH 40, SCH 80, SCH 160, XXS
Length Single Random, Double Random, Cut Length
Finish Annealed, Pickled, Bright Annealed
End Type Plain End (PE), Beveled End (BE)
Applications Oil & Gas, Marine, Chemical Processing, Desalination Plants

Application of grades

Grade Application
Duplex 2205 (S32205) Oil & gas pipelines, pressure vessels, heat exchangers
Duplex 2304 (S32304) Chemical processing equipment and storage tanks
Super Duplex 2507 (S32750) Offshore platforms, seawater systems, desalination plants
Super Duplex Z100 (S32760) Marine, subsea piping, high-corrosion offshore environments