Standard Length Range Of Seamless Pipes

Standard length range of seamless pipes

Stainless steel pipe and carbon steel pipe are the most common type of standard pipe used today. They are part of tubular goods, which are manufactured to different specifications and standards. Pipes are sold by "nominal pipe size" in sizes from 1/8" to 72". The two most common types of pipes are welded pipe and seamless pipe. Both are available in carbon steel and stainless steel. Welded pipe is also called ERW (Electric Resistance Welded) pipe.

According to international standards, the fixed length of seamless pipes should be between 3 and 12m. Among them, 3~5.8m is the normal length, and 6~12m is the double length. These standards are mainly applicable to seamless pipes in petroleum, chemical industry, natural gas, shipbuilding and other fields. Different industries use different pipes, and some industries may require different pipe lengths.

Most common specification for welded carbon steel pipe is A53. Seamless pipe is made by a process that requires no welding. Most common specification for seamless carbon steel pipe is A106B. Stainless Steel pipe is made to spec A312. Stainless steel pipe is also available in both seamless and welded configuration. Most common stainless material is 316 and 304.

 Domestic standards also have clear regulations on the fixed length of seamless pipes. The GB/T 8163-2008 standard stipulates that the fixed lengths of seamless steel pipes are 6m, 9m, and 12m. The GB/T 3087-2008 standard stipulates that the length of boiler seamless steel pipes is 4~12m. It is worth noting that some domestic manufacturers have their own special length specifications, and users should choose the manufacturer that meets their needs.