Supply and Drain Spiral Steel Pipe

Spiral-welded steel pipes for pressure fluid conveyance, utilizing GB/T9711-2023 spiral seam submerged arc welding pipes, mainly used for pipeline transportation of oil and natural gas.

Generally used for low-pressure fluid transportation, spiral seam submerged arc焊接钢管 according to GB/T3091-2015 and SY/T5037-2023, manufactured by double-sided automatic submerged arc welding, suitable for transporting general low-pressure fluids such as water, coal gas, air, and steam.

Common standards for spiral steel pipes typically include: SY/T5037-2023 (Ministry Standard, also known as Spiral Seam Submerged Arc Welded Steel Pipes for General Fluid Transportation), GB/T3091-2015, GB/T9711-2023 PSL1 and PSL2 (National Standard, also known as Steel Pipes for Petroleum and Natural Gas Industry Transportation, API-5L - American Petroleum Institute, also known as Line Pipe; which includes PSL1 and PSL2 grades), and SY/T5040-2008 (Piling Spiral Welded Steel Pipes).

SY/T5037-2023 is a general standard set by the Ministry of Petroleum, often referred to as the Ministry Standard.

GB/T9711-2023 PSL1/2 Standard Spiral Steel Pipe for oil and gas industry transportation.

Piling Spiral Welded Steel Pipe (SY5040-2008) is manufactured from hot-rolled steel strip coils as billets, formed by normal temperature spiral rolling, and produced through double-sided submerged arc welding or high-frequency welding. It is used for steel pipes in civil engineering structures, wharfs, bridges, and other foundation piles.