Stainless steel pipe fittings are used in water supply engineering, petrochemical industry, electric power industry, chemical industry, agricultural irrigation, and urban construction. It is one of the 20 key products developed in my country. For gas transportation: coal gas, steam, liquefied petroleum gas. For structural purposes: as piling pipes and bridges; pipes for docks, roads, and building structures.
1. According to the manufacturing process, welded pipe can be divided into: straight seam welded steel pipe, coil butt welded steel pipe, submerged arc welded steel pipe, and welded pipe thermally expanded steel pipe.
2. The manufacturing process of stainless steel pipe fittings is divided into the basic categories: hot rolled (extrusion), cold rolled (drawn), and hot expanded steel pipe.
3. According to the shape of the steel pipe, it can be divided into square pipe, rectangular pipe, octagonal, hexagonal and D-shaped. Complicated section steel pipe, double concave steel pipe, five-petal plum-shaped steel pipe, conical steel pipe, corrugated steel pipe, melon seed steel pipe, double convex steel pipe, etc.
4. Classification by purpose-steel pipes for pipelines, steel pipes for thermal equipment, steel pipes for machinery industry, steel pipes for petroleum, geological drilling, container steel pipes, steel pipes for chemical industry, steel pipes for special purposes, etc.
