ASTM A358 SS EFW Pipes 

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.

ASTM A358 SS EFW Pipes Products

Whatever your industry or application in the energy sector, Petrosteel has the products you need.
We supply products for a wide range of industries including oil and gas, petrochemical, electrical and wind power, water and more. 

Our broad range of products – listed to the left and further under each category – covers applications of all kinds including construction of pipeline, fabrication of heat exchangers and pressure vessels, and construction of on- and off-shore structures.  Please contact us for assistance choosing the best product for your application.

We're sure to have whatever your specs require.