What is stainless steel? -- Understanding stainless steel

The stainless steel pipe is a hollow strip of circular steel that contains a specific proportion of chromium. Chromium provides corrosion resistance to stainless steel, resulting in various grades of stainless steel. However, all stainless steel must have a minimum chromium content of 10.5%, which can be increased up to 20% depending on the application requirements. Stainless steel pipes are widely used in industries such as petroleum, chemical, medical, food, light industry, mechanical instrumentation for transportation pipelines and structural components. Additionally, due to its comparable bending and torsional strength with lightweight properties, it finds extensive applications in the manufacturing of mechanical parts and engineering structures as well as being commonly utilized in furniture kitchenware.

For annealed stainless steel pipes with an inner diameter above 6.0mm and wall thickness below 13mm, the W-B75 Wechsler hardness tester can be employed for rapid and non-destructive qualification inspection purposes since it offers fast and simple testing capabilities. In cases where the inner diameter exceeds 30mm or the wall thickness surpasses 1.2mm, Rockwell hardness testers are utilized to measure HRB (Rockwell B) and HRC (Rockwell C) hardness values respectively.  For stainless steel pipes with an inner diameter greater than 30mm but a wall thickness less than 1.2mm, surface Rockwell hardness testers are used to determine HRT or HRN hardness values instead.

The production process of stainless steel welded pipes includes the following steps: raw material selection, strip preparation, pipe welding, end repair, polishing, inspection (printing), packaging, and shipping (warehousing) for decorative welded pipes. For piping weld pipe industry, the process involves raw material preparation, article shaping, welding and heat treatment processes to ensure correct alignment and straightness. Additionally, the ends are fixed and pickled before undergoing water pressure testing and inspection (spurts India). Finally, the pipes are packaged for shipment or transportation. 

Stainless steel pipes have anti-fouling and anti-corrosion effects. Corrosion is the number one enemy of metal pipes. The exterior of iron, steel, and concrete pipes can be damaged by soil and strong ultraviolet light. Other pipes may rust, become damaged by wear, or accumulate debris. Other types of pipe walls appear to rust, wear and tear, or accumulate debris. However, stainless steel has excellent corrosion resistance and is therefore better able to resist various elements. This gives stainless steel a clear advantage in industries such as sanitary water supply and hospital applications.

Stainless steel pipeIt accounts for about 8% to 16% of the total steel, and its application in the national economy is extremely wide. 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.

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 Stainless steel pipes have become an indispensable part of all walks of life because of their excellent performance and versatility. For more than four years, JingChangSheng has been supplying high quality stainless steel to various industries around the world. JingChangSheng has become synonymous with precision, reliability and innovation. To view our products or talk to our experts, please contact JingChangSheng today.