People always confused about how to describe steel pipe dimensions (sizes) in correct ways, or how to clarify to seller what exactly pipe size we are going to purchase. In case any misunderstandings or a different size we purchased, that will be a big trouble.

ASTM A335 pipe (with Grade P9, P11, P22, P91 pipes) has been widely used in different industries for high temperature, high pressure services. According to market data, it is one of the most consumption alloy pipes in boiler industry, heat exchanger, power station, high and super high pressure vessels.

People always confused about how to describe steel pipe dimensions (sizes) in correct ways, or how to clarify to seller what exactly pipe size we are going to purchase. In case any misunderstandings or a different size we purchased, that will be a big trouble.

Butt welding elbows are elbows that undergo a hot forming or forging process, and their primary method of connection is through direct butt welding to the pipe. These elbows are categorized based on their curvature radius, resulting in two main types: long radius butt welding elbows and short radius elbows. Additionally, they are classified according to pressure levels, aligning with approximately seventeen types that adhere to American pipe standards, with STD and XS being the most commonly utilized. Furthermore, based on the elbow angle, variations include 45-degree butt welding elbows, 90-degree butt welding elbows, 180-degree butt welding elbows, and elbows with other angles. In terms of material, butt welding elbows can be further divided into carbon steel elbows, alloy steel elbows, and stainless steel elbows.

Flanges play a crucial role in connecting pipes, valves, and other components in a piping system. The processing and connection of flanges involve specific steps and considerations to ensure a reliable and secure connection. Here is an overview of the flange processing and connection process:

Stainless steel pipe caps are end fittings or closures used to seal the ends of stainless steel pipes. Stainless steel pipe caps are typically designed to fit over the outside of the pipe's end and can be welded, threaded, or clamped in place, depending on the specific requirements of the application. They are available in various sizes, shapes, and materials, allowing them to be customized to suit the specific needs of different industries and projects. Read on to learn more about stainless steel pipe caps.

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Steel pipe production process

　　Stainless steel square tube is a kind of square tube material. In fact, it is a steel tube with the same length. The strip steel is processed and rolled. Usually, the strip is unpacked, flattened, crimped, welded to form a round tube, and then rolled into a square tube by a round tube and cut to a desired length. Stainless steel square tubes are mainly divided into two types: seamless and welded. The seamless square tube is formed by extruding a seamless tube. For those who want to buy stainless steel square tubes, it is necessary to know the specific price. So today, Xiaobian will tell you about the market price of 4*6 stainless steel square tube.

　　As a material with a wide range of applications, stainless steel has a very high market demand. So what is the current market for stainless steel? Next, Xiaobian will share with you the latest stainless steel price list, I hope you will like it.

　　The 316L is a model in stainless steel tubing and is currently very valuable in use and market demand. People who often pay attention to the price of stainless steel pipes will find that the price of stainless steel pipes fluctuates greatly, sometimes rising to exaggeration, and sometimes falling to the bottom. Only after we understand the factors affecting the price of stainless steel pipes can we be keenly aware of the fluctuations in the price of stainless steel pipes and respond well in advance. So what is the price of 316L steel pipe?

Precision spiral steel pipe is a kind of high-precision steel pipe after cold drawing or hot rolling. Because the inner and outer walls of precision spiral steel pipe have no oxide layer precision spiral steel pipe, high pressure and no leakage, high precision, high smoothness, no cold deformation, flaring, flattening without cracks, etc., it is mainly used to produce pneumatic or hydraulic components.

Burn-through and hydrogen-induced cracking in spiral steel pipe welding are hot topics at home and abroad. There are many influencing factors of these problems, including spiral steel pipe body, pre-weld treatment, welding process and post-weld treatment.

With the continuous development of China's economy, the country vigorously develops the energy industry. Pipeline long-distance oil and gas pipelines are an important way of energy security. In the anti-corrosion construction process of oil (gas) pipelines, the surface treatment of anti-corrosion spiral steel pipes determines the service life of pipelines. One of the key factors is the premise that the anti-corrosion layer and the steel pipe can be firmly combined. According to the research institute's verification, the life of the anti-corrosion layer depends on the coating type, coating quality and construction environment. The surface treatment of the anti-corrosion spiral steel pipe affects the life of the anti-corrosion layer by about 50%. Therefore, it should be strictly in accordance with the anti-corrosion layer. Standardize the requirements on the surface of steel pipes, continuously explore and summarize, and continuously improve the surface treatment methods of steel pipes.

　　There are many types of steel pipes and different uses, so their technical requirements are different and production methods are different.

　　The intermediate wave is formed at the side of the precision stainless steel strip and half of the center (1/4 inch from the side). The main reason is that the shape of the blank is not good and the intermediate roll shape curve is incorrect or the position is incorrect. The buck is a defect formed by the different English love in the thickness direction of the steel strip. The main reason is the result of the bending of the work rolls in the horizontal direction and the surface condition lubrication conditions of the upper and lower work rolls and the work mixed wear. Its manifestation is that it is rolled up laterally to form a "funnel shape".