Bureau Standard Spiral Steel Pipe

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

General low-pressure fluid transportation, spiral seam submerged arc welded steel pipes according to GB/T3091-2015 and SY/T5037-2023, manufactured using double-sided automatic submerged arc welding for the transportation of general low-pressure fluids such as water, gas, air, and steam.

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

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.

Piled steel spiral-welded pipes (SY5040-2008) are manufactured from hot-rolled steel strip coils as billets, typically formed by normal temperature spiral rolling, and are produced using double-sided submerged arc welding or high-frequency welding. They are used for steel pipes in civil engineering structures, docks, bridges, and other foundation piles.