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.

Any steel with two ends open and hollow section, and its length and section circumference are relatively large, can be called steel pipe. When the comparison between the length and the section circumference is small, it can be called pipe segments or tubular fittings, which belong to the category of pipe products.

For more than 60 years, architects have been using stainless steel to construct cost-effective permanent buildings. Many existing buildings fully illustrate the correctness of this choice. Some are very ornamental, like the Chrysler Building in New York City. But in many other applications, stainless steel plays a less dramatic role, but plays an important role in the aesthetics and performance of buildings. For example, because stainless steel is more abrasion and indentation resistant than other metal materials of the same thickness, it is the preferred material for designers when building sidewalks in places with high population flow.

Stainless steel has been used for more than 70 years as a structural material for the construction of new buildings and the restoration of historic sites. Early designs were calculated according to basic principles. Today, design codes, such as the American Society of Civil Engineers standard ANSI/ASCE-8-90" Design Code for Cold-formed Stainless Steel Structures "and the" Design Manual for Structural Stainless Steel "published jointly by NiDI and Euro Inox, have simplified the design of long-life, intact building structures.

Because the steel pipe has a hollow section, it is the most suitable for liquid, gas and solid transportation pipeline.

At the same time, compared with round steel of the same weight, steel pipe has a large section coefficient and a large bending and torsional strength, so it has also become an important material for various mechanical and building structures.

Structures and components made of stainless steel tubes have a larger section modulus than solid parts, if the weight is equal. Therefore, stainless steel pipe itself is a kind of economic section steel to save metal, it is an important part of efficient steel, especially in the oil drilling, smelting and transportation industry demand is large.

Secondly, geological drilling, chemical industry, construction industry, machinery industry, aircraft and automobile manufacturing, as well as boilers, medical equipment, furniture and bicycle manufacturing also need a large number of various steel pipes.

With the development of new technologies such as atomic energy, rockets, missiles and space industries, stainless steel pipes are becoming more and more important in the national defense industry, science and technology and economic construction.