Please refer to Steel Pipes & Tubes pages under this website, there are many types of Pipes or Tubes in Marine Industry,
Seamless Pressure Pipe acc. to ASTM A106 (also known as ASME SA106 pipe)
Welded Carbon or Alloy Steel Pipe
Pipes for use at low temperature according to ASTM A333
Alloy Steel Pipes
Stainless Steel Pipes
Copper or Aluminium Tubes
Resin Pipes made by fibreglass and polyethylene