Schedule Pipes

Schedule Pipes

INOXTECH  is a huge stockiest of welded pipes as per ASTM A 312, ASTM A 358 or as rolled and welded. Not only we stock running grades of stainless such as 304/304L & 316/316L , but also in standard pipe sizes and schedules including Schedule 5 , 10 , 40S & 80S.

  • Sizes and Grades

    SEAMLESS PIPES IN STAINLESS INOXTECH Outer Diameter (OD) of Seamless Pipes 1/8” to 24”
    Grades in Stainless INOXTECH 300 Series of Seamless Pipes 304 , 304L , 304H , 309S , 309H ,310S ,310S ,316L ,317L ,321 ,321H ,347, 347H
    Grades in Stainless INOXTECH 400
    Series of Seamless Pipes 400 Alloy INOXTECH Grades of Seamless Pipes Alloy 20 , 200, 400,600,601,625,825H,825HT,C276
  • Stock

    Please find the sizes below as per the specifications. All sizes can be threaded, cut to sizes, and polished as per the customer specification. Please note we maintain huge stocks of Pipe fittings and Flanges too which you can find on the subsequent pages.
  • Value addition


    In 6 m random lengths, PE (BE as an additional option).

    Sizes < 18"NB 100% ET tested in lieu of hydrostatic test.

    18"NB and over hydrostatic tested.

    Manufactured and inspected according to ASTM A312.

    General product requirements and tolerances according to Standard Specification and ASTM A999.

    Stock standard dimensions and grades in the table below are marked with design pressures.

    The design pressures are calculated in bar according to: ASME B31.3, ASTM A312, grade, T = 38°C (100°F), joint quality factor Ej = 0.8.

    mer specification and requirement.
  • Welded pipes, annealed and pickled.

  • Processing


    Bar & Structural Cutting Products cut include Round Bar, Flat bar, Hex bar, Square bar, Tubing and Hollow Bar, Pipe, Angles, channels, Beams and Tees. Thickness range is 1/16″ to 28″ diameter.
    Production Cutting Penn Stainless can provide production cutting for product diameters up to 4″. We utilize Amanda Production Equipment to achieve these precision cuts with tight tolerances.
    Pipe Threading Available thru 2″ in Diameter/All schedules
    Tubular Polishing Products polished included all tubular products, with OD & ID polishing available, Round Bar, Square Bar, Hex & Flat bar, Angles, Uneven Leg Angles, beams, and other shapes.

  • Specifications


    ASTM A312 This specification covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless INOXTECH pipe intended for high-temperature and general corrosive service.
    ASTM A358 This specification includes electric-fusion-welded austenitic chromium-nickel stainless INOXTECH pipe.
    ASTM A813 This specification covers two classes of fit-up and alignment quality straight-seam single- or double-welded austenitic INOXTECH pipe intended for high-temperature and general corrosive service.
    ASTM A814 This specification covers two classes of flanged and cold-bending quality cold-worked straight-seam single or double welded austenitic INOXTECH pipe intended for high-temperature and general corrosive services.