What are the welding requirements for stainless steel pipes

Stainless steel welded pipe is referred to as stainless steel welded pipe. Stainless steel welded pipe has a simple production process, efficient production, many varieties and specifications, and less equipment. It is widely used in all walks of life, and has replaced seamless steel pipes in more and more fields. Many people do not know what the welding requirements of stainless steel pipes are, nor what are the welding problems of stainless steel pipes. For these problems, we understand the design.

What are the welding requirements for stainless steel pipes

1. Check the welder's qualification certificate and whether the welding operation is carried out in accordance with the specifications. And supervise and inspect the use of covered electrode insulating cylinders. On-site welders must correctly use a well-insulated electrode insulation cylinder with a cover. If the insulation effect cannot be achieved, it must be replaced.

2. Visit the welding site, monitor and check whether the welding parameters are correct or not. Welding preheating temperature and preheating method Check and check whether the preheating method [preheating method and heating range] conforms to the regulations. When the minimum preheating temperature is found to be lower than the specified minimum preheating temperature, the welding should be stopped. Welding shall not be continued until the welding has been reheated to the specified preheat temperature value.

3. Confirm and check the setting and quality of the welding test plate.

4. Supervision, inspection and inspection of post-weld heat treatment.

5. Post-weld heat treatment must be carried out in accordance with the specified methods and heat treatment parameters.

6. Post-weld heat treatment should be performed by trained personnel. In the heat treatment work, the parameters of the heat treatment specification should be recorded in detail

What are the uses of stainless steel pipe welding

Stainless steel welded pipe is safe, reliable, economical, hygienic and environmentally friendly, making it widely used in the national economy. At the same time, it has good resistance to acid and alkali corrosion, and the surface has a protective film, but it is very hard. With its good surface effect, it is often used in decorative tubes, props tubes and product tubes. Its pressure bearing performance is average, and it is mainly used to transport water, oil, gas, air, and general low-pressure fluids such as heating hot water or steam.

The quality of stainless steel welded pipe is relatively light, which is convenient for transportation, storage and installation. It has a hollow section, so it is most suitable for liquid, gas and solid transportation pipelines. Structural parts made of stainless steel welded pipes have a larger section modulus than solid parts under the same weight. Therefore, stainless steel pipe itself is an economical section steel that saves metal. It is an important part of high-efficiency steel, and it has also become an important material for various machinery and building structures. Hygienic, safe and reliable to use, with the desired properties required of a building material, it has been certified by architects as one of the cost-effective materials.

When you want to buy and stainless steel welded pipes, you can choose according to your own needs, and choose a stainless steel welded pipe with suitable product specifications. The above question is a related information requirement about the welding technical requirements of stainless steel pipes and the welding uses of stainless steel pipes. I hope that I can help all of us to buy stainless steel welded pipes. Only suitable stainless steel pipes can be used for more. In life The scope of applied research is very wide.