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Stainless Steel Pipes — ASTM A312 304L / 316L

Pipe Steel Industries supplies stainless steel pipes to ASTM A312 and ASTM A358 Class 1 in seamless and EFW forms. Grade 304L offers superior weldability, while 316L adds molybdenum for enhanced corrosion resistance in marine and chemical environments.

Matching stainless buttweld fittings (ASTM A403) and forged fittings and flanges (ASTM A182) are available from the same source, simplifying procurement and certification for complete piping packages.

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Stainless steel pipes in 304L and 316L grades

Standards & Grades

PropertyDetails
StandardsASTM A312, ASTM A358 CL 1
FormsSeamless (SMLS), EFW
Grades304/304L/304H, 316/316L/316H, 321/321H
Buttweld fittingsASTM A403 Gr. 304/L/H, 316/L/H, 321/H
Forged fittings & flangesASTM A182 Gr. 304/L/H, 316/L/H, 321/H
DocumentationMill test certificates EN 10204 3.1

Applications

  • Marine and offshore piping
  • Petrochemical and chemical processing
  • Food processing and pharmaceutical plants
  • High-temperature and corrosive service
  • Water treatment and desalination

Finishes & Options

  • Annealed and pickled
  • Polished finishes on request
  • Beveled or plain ends
  • Cut-to-length and custom fabrication

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