What are the standards for the length range of seamless pipes?

What are the standards for the length range of seamless pipes?

1. International standards

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 may require different pipe lengths.

2. Chinese standards

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 seamless steel pipes for boilers 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.

3. Common length range

The fixed length range of seamless pipes is generally between 3 and 12m, but different industries have different requirements for pipe lengths. For example, some short-distance transportation pipelines often require a length between 1 and 3m. Some pipes that require extensive bending need to be shortened to facilitate processing. For some large buildings or equipment pipes, longer lengths are required, up to more than 18m.

4. How to choose the appropriate seamless pipe length?

There are several factors to consider when selecting the appropriate seamless pipe length. The first is the purpose of the pipe and the range of lengths required. Different application scenarios have different requirements for pipeline length, and selections need to be made based on specific circumstances. The second is the requirements for manufacturers. Some manufacturers have special specifications of fixed lengths or provide higher quality pipes, which you need to choose according to your own needs. Finally, there is the consideration of price. The prices of pipes of different lengths are also different, so you need to choose according to the actual situation.

In short, the standards for the fixed length range of seamless pipes are divided into international standards and domestic standards. The length range is generally between 3 and 12m, but different industries have different requirements for pipeline length. Selecting the appropriate seamless pipe length requires consideration of many factors, including the pipe's intended use and required length range, manufacturer's specifications, price, and more.

Warm reminder: ASTM A106 (ASME SA106) seamless pipe can transport fluid or gas under high temperature and high pressure. There are three levels: A, B, and C. The most commonly used ASTM A106 Grade B is widely used in oil and gas refineries, power plants, petrochemical project plants, boilers. and shipbuilding. These pipelines must carry fluids and gases with higher temperature and pressure levels.