ASTM A358 / A358M

    This specification cover electric-fusion-welded austenitic chromium-nickel stainless steel pipe suitable for corrosive or high-temperature service, or both, or for general applications. The pipes come in five classes

  • Class1:

    Pipe is double welded by processes employing filler metal in all passes and are completely radiographed.

  • Class2:

    Pipe is double welded by processes employing filler metal in all passes without radiography

  • Class3:

    Pipe is single welded by processes employing filler metal in all passes and are completely radiographed.

  • Class4:

    Same as Class 3 except that the weld pass exposed to the inside pipe surface may be made without the addition of filler metal.

  • Class5:

    Pipe is double welded by processes employing filler metal in all passes and is spot radiographed.

  • Application:

    High-temperature and general corrosive service

  • Pipe Grades:

    304,304L, 304H, 316, 316L, 316H, 321, 321H, 317, 317L, 347, 347H, 309, 309S, 310, 310S.

  • Available Sizes:

    Any size can be provided but this process is usually used sizes of NPS 8’’ and upper.


    • Other grades or sizes may be available upon request.

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Petrosteel Technologies Inc., #1500-701 West Georgia St., Vancouver, BC, V7Y 1C6, Canada,T: +1 (604) 781-5494, F: +1 (360) 351-9152, E: sales@petrosteel.ca, Site by: cgdc