Straight seam steel pipe production process is simple, high production efficiency, low cost and rapid development. Therefore, the smaller diameter steel pipe is mostly made of LSAW steel pipe, and the large diameter steel pipe is mostly made of SSAW steel pipe.
1. Steel pipes for the transport of low-pressure fluids (GB/T3092-1993) are also called general steel pipes, commonly known as black pipes. Is used to transport water, gas, air, oil and heating steam and other generally lower pressure fluids and other uses of steel pipe. Steel pipe wall thickness is divided into general steel pipe and thicker steel pipe; the receiving end method is divided into non-threaded steel pipe (light pipe) and threaded steel pipe. The specification of the steel pipe is indicated by the nominal diameter (mm), and the nominal diameter is an approximate value of the inner diameter. Commonly used in inches to indicate that steel pipes for low pressure fluid transportation are used directly for transporting fluids, but they are also used as primary pipes for galvanized steel pipes for low pressure fluid transportation.
2. Galvanized steel-joined steel pipes for low-pressure fluid transport (GB/T3091-1993) are also called galvanized steel pipes, commonly known as white pipes. It is a hot dip galvanized steel (furnace steel or electric steel) steel pipe for the transportation of water, gas, air oil, heating steam, warm water, and other general low pressure fluids or other uses. Steel pipe wall thickness is divided into general galvanized steel pipe and thick galvanized steel pipe; the receiving end method is divided into non-threaded galvanized steel pipe and threaded galvanized steel pipe. The specification of the steel pipe is indicated by the nominal diameter (mm), and the nominal diameter is an approximate value of the inner diameter.
3. General carbon steel wire bushings (GB3640-88) are steel pipes used to protect wires in industrial and civil buildings, equipment, machinery and other electrical equipment.
4. Straight seam electric steel pipe (YB242-63) is a longitudinally parallel steel pipe with steel seam. Generally divided into metric electric steel pipe, electric steel thin-walled pipe, transformer cooling oil pipe and so on.