Thick-walled straight seam steel pipes are made by rolling long strips of steel strips of certain specifications into round tubes through high-frequency welding units and welding them into straight seams. The shape of the steel pipe can be round, square, or special-shaped, depending on the sizing ro

Slag inclusion in welded steel pipes is slag remaining inside the weld. From a theoretical analysis, the main reasons for slag inclusion in submerged arc automatic welding welds are the following three points: ① There are many inclusions in the raw materials (including parent materials, welding wire

First, thick-walled steel pipes require daily maintenance during use: Thick-walled steel pipes are widely used steel varieties. It directly affects economic benefits and personnel lives. Countries around the world attach great importance to the inspection of thick-walled steel pipes and use various

First, the introduction of the high-frequency welding process of submerged arc steel pipe: 1. Control of weld gap: After multiple rollers roll, the strip steel is fed into the welded pipe unit. The strip steel is gradually rolled up to form a round tube blank with a tooth gap. The pressing amount o

1. Ultrasonic detection: When ultrasonic waves are propagated in the material being tested, the acoustic characteristics of the material and the changes in the internal structure have a certain impact on the propagation of ultrasonic waves. By detecting the degree and situation of the influence of u

First, straight seam steel pipe production temperature: In the process of producing straight seam steel pipes, the temperature must be strictly controlled to ensure the reliability of welding. If the temperature is too low, the welding position may not reach the temperature required for welding. Wh

Spiral welded steel pipe and straight seam welded steel pipe have different technical characteristics and production processes, and have many differences and distinctions in production. They have different functions and uses, and the value they show in use is also different. The comparison of techni

First, the leakage location and condition. The bolts connecting the flanges on both sides of the DN150 valve body are leaking. Due to the extremely small gap between the flange connections, it is impossible to eliminate the leakage by injecting sealant through the gap. The leakage medium is steam, t

A galvanized steel pipe is generally called a cold-dip steel pipe. It adopts an electroplating process. Only the outer wall of the steel pipe is galvanized, and the inner wall of the steel pipe is not galvanized. Hot-dip galvanized steel pipe adopts the hot-dip galvanizing process, and both the inne

1. Quality defects and prevention of tube billets: The tube billets used in the production of seamless steel pipes can be either continuous casting round tube billets, rolled (forged) round tube billets, centrifugally cast round hollow tube billets, or steel ingots can be used directly. In the actua

Seamless carbon steel pipes are a commonly used steel product that is widely used in many industries. Understanding the density of seamless carbon steel pipes is essential for the correct selection and use of steel pipes. First, what is the density of seamless carbon steel pipes? Density is the

In the steel industry, seamless steel pipe is a common and widely used steel product. 1. What is a 48-inch seamless steel pipe? 48-inch seamless steel pipe is a seamless steel pipe specification with a specific outer diameter and wall thickness. In this specification, "48 inches" means that the

359 inner diameter stainless steel pipe is a common steel product with many unique characteristics and is widely used in various fields. This article will introduce the characteristics, advantages, and applications of inner diameter 359 stainless steel pipes in industry and construction. 1. Chara

First, introduction The boiler is a common heat conversion equipment in our lives, and the boiler stainless steel pipe, as an important part of the boiler, plays a vital role in it. Second, common boiler stainless steel pipe series models 1. 304 stainless steel pipe: 304 stainless steel pipe is

Stainless steel high-pressure steel pipes are a type of pipe widely used in the industrial field. They are resistant to high pressure and corrosion and are widely used in the petroleum, chemical, aerospace, and other industries. When using stainless steel high-pressure steel pipes, it is very import

Stainless steel is a corrosion-resistant metal material that is widely used in various fields, among which stainless steel pipes are one of the most common applications. Stainless steel pipes have excellent corrosion resistance and beautiful appearance and are widely used in chemical, food, medicine

Among various building materials, steel pipes undoubtedly occupy an important position. There are many types of steel pipes, among which seamless stainless steel pipes are gradually gaining popularity due to their unique advantages. So, what are the benefits of seamless stainless steel pipes? Fir

As the pillar material of modern industry, the importance of the quality of steel pipe is self-evident. Among the many specifications of steel pipes, the quality of 65mm steel pipes is even more concerning due to its wide range of applications and high technical requirements. So, what is the quality