Straight steel pipe in English (Straightsteel pipe), general welded pipe: general welded pipe is used to transport low-pressure fluid. It is made of Q195, Q215A, Q235A steel and Q235B ordinary carbon. It can also be manufactured by easy welding standard model and steel mother mild steel. Steel pipes need to be subjected to water pressure, bending, flattening and other experiments, and there are certain requirements for surface quality. Usually the delivery length is 4-10m, and fixed-length (or double-length) delivery is often required. The specifications of welded pipes are expressed by the nominal diameter (mm or inches). The nominal diameter is different from the actual. Welded pipes are divided into two types: ordinary steel pipes and thickened steel pipes according to the specified wall thickness. The steel pipes are divided into threaded and non-threaded types according to the tube end form.

The welding process of the submerged arc welding straight seam steel pipe is the submerged arc welding technology, which uses filler welding and particle protection flux submerged arc. The production caliber can reach 1500mm. LSAW is the abbreviation of submerged arc welded longitudinal seam steel pipe. The production process of submerged arc welded longitudinal seam steel pipe includes JCOE forming technology and coil forming submerged arc welding technology. When the caliber is large, two steel plates may be used for rolling, which will form a double weld phenomenon. The applicable standard GB/T3091-2008 low pressure fluid steel pipe production standard, GB/T9711.1-2 -1997 oil and natural gas steel pipe production and use standard, and the United States API 5L pipeline steel pipe implementation standard can also be implemented. Production material: Q195A-Q345E; 245R; Q345QA-D; L245-L485; X42-X70. The main pressure parameters are 2ST/T, S is the yield strength, and T is the wall thickness. Submerged arc welding has developed into two-wire submerged arc welding and multi-wire submerged arc welding, and the efficiency is further improved.

Cangzhou Shenlong pipe manufacture is a premier worldwide source for carbon steel pipe, stainless steel tube, seamless pipes, welded pipes,galvanized tubes,casing pipes and steel fittings.