ALLY INTL CO manufacture, Stock and export optimum quality Stainless Steel Duplex Pipes & Tubes in various grades and specifications as per international standards with EN 10204 3.1/3.2 Test certifications complying to NACE MR 0175. Stainless Steel Duplex Pipes & Tubes are a cost effective solution for many applications where the 300 series stainless steels are susceptible to chloride stress corrosion cracking. Stress corrosion cracking occurs when stainless steels are subjected to tensile stress, while in contact with solutions containing chlorides. Increasing temperatures also increase the susceptibility of stainless steels to stress corrosion cracking. Specifications: ASTM A790, ASTM A789, ASTM A928 and others. Grades: UNS No. S31803, UNS No. S32205, 2205, W. Nr. 1.4462 Pipe Sizes: 1/8" NB to 12" NB (seamless) and upto 24" (Welded/EFW) - Thickness SCH 10 upto SCH XXS Tube Sizes: 3.175mm OD to 168.3mm OD (thickness 0.

Pipes and tubes, stainless steel
  • stainless-steel pipes
  • Duplex Stainless Steel Pipes And Tubes

Product features

Grade 347/347H, UNS. S34700/347009
Size 1/8" To 48"
Thickness Sch 5s To Sch XXS (Pipes) & 0.7mm To 25.4mm (Tubes)
Specification ASTM A312 / A213 / A269 / A249 / A358


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