API-5L standard spiral steel pipe is a standard specification for pipeline steel spiral steel pipe launched by the American Petroleum Institute (API). It is one of the most widely used and popular pipeline steel standards in the world.
The API-5L standard covers the production requirements for pipeline steel spiral steel pipes, especially regarding tensile strength, yield strength, room temperature impact toughness, elongation at break, etc. According to the type of pipe steel, API-5L is divided into general steel pipes and special steel pipes, and general steel pipes are further divided into ordinary steel pipes and high-strength steel pipes. my country's GB/T9711-2017 standard and API-5L American Petroleum Institute steel pipe standard are basically the same and can be adopted equally.
The steel plate material used in API-5L standard spiral steel pipe is X42-X100, which corresponds to our L245-L690. The manufacturing capacity of spiral steel pipes reaches the GB/T3091-2015 standard, GB/T9711-2017 standard and APL-5L standard. Spiral steel pipe GB/T3091-2015 standard and GB/T9711-2017 standard are both national standards. GB/T3091-2015 standard, GB/T9711-2017 standard, API standards, used to express the performance requirements and physical, chemical and mechanical properties of pipeline steel.
