Stainless steel pipe is a kind of hollow long circular steel, mainly widely used in petroleum, chemical, medical, food, light industry, mechanical instrumentation and other industrial transportation pipes and mechanical structural components. In addition, the bending and torsional strength are the same, and the weight is light, so it is also widely used in the manufacture of mechanical parts and engineering structures. Also commonly used as furniture kitchenware.

Carbon steel pipes are divided into hot rolled and cold rolled (drawn) steel pipes. Hot rolled carbon steel pipe is divided into general steel pipe, low and medium pressure boiler steel pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, petroleum cracking pipe, geological steel pipe and other steel pipes. Cold rolled (dial) carbon steel pipe in addition to general steel pipe, low and medium pressure boiler steel pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, oil cracking pipe, other steel pipe, also includes carbon thin-wall steel pipe, alloy thin-wall steel pipe, stainless thin-wall steel pipe, special-shaped steel pipe. The outer diameter of the hot-rolled seamless pipe is generally greater than 32mm, the wall thickness is 2.5-75mm, the outer diameter of the cold-rolled seamless steel pipe can be 6mm, the wall thickness can be 0.25mm, the outer diameter of the thin-walled pipe can be 5mm, the wall thickness is less than 0.25mm, and the size accuracy is higher than that of the hot-rolled seamless pipe.

Stainless steel pipe fittings belong to a kind of pipe fittings, it is made of stainless steel material so called stainless steel pipe fittings, it includes: stainless steel elbow, stainless steel tee, stainless steel four, stainless steel reducing pipe, stainless steel pipe cap, etc., according to the connection method can be divided into socket stainless steel pipe fittings, threaded stainless steel pipe fittings, flange stainless steel pipe fittings and welded stainless steel pipe fittings four categories. Stainless steel elbow is used for turning places of pipe fittings; The flange is used to connect the parts of the pipe with the pipe, connected to the end of the pipe, and the stainless steel tee pipe is used for the place where the three pipes are gathered; Stainless steel four-way pipe is used for the place where four pipes are gathered; Stainless steel reducing pipe is used where two pipes of different diameters are connected. Main stainless steel material: 304, 304L, 316, 316L

The main products include carbon steel elbow, carbon steel flange, carbon steel tee, carbon steel four, carbon steel reducing pipe (size head), carbon steel head (pipe cap) and so on. The main implementation standards include national standard, American standard, Japanese standard, etc., which also includes the Ministry of Chemical Industry standard, Sinopec pipe fitting standard, power pipe fitting standard.