1. Process the two plate edges into the required form at one time. Steel plate milling machine: machine the two sides of the plate material used for pipe making, and make the parallelism of the two plate edges reach the specified tolerance range, in preparation for manufacturing high-precision steel

Horizontal fixed welding of thick-walled stainless steel pipes: Stainless steel pipes are a kind of hollow long steel strips, that are widely used as pipelines for conveying fluids, such as oil, natural gas, water, coal gas, steam, etc. Stainless steel pipes are light in weight when the bending and

First, pre-welding of straight seam steel pipes: Pre-welding includes joints and welds. 1. The joint (also known as the forming seam) has no misalignment or the misalignment is less than the specified value. Generally, the misalignment is ≤8% of the plate thickness, and the maximum is no more than

First, the properties of high-frequency welded steel pipe and straight seam welded steel pipe are different. 1. High-frequency welded steel pipe: After the hot-rolled coil is formed by the forming machine, the skin effect and proximity effect of the high-frequency current are used to heat and melt

Galvanized steel pipes have the dual advantages of corrosion resistance and long service life, and the price is relatively low, so now its usage rate is getting higher and higher, but some users are not careful when welding galvanized pipes, which leads to some unnecessary troubles. So what problems

In addition to brand, material, and production process, the most important factor affecting the price of stainless steel pipes is the surface treatment method of the steel pipe. In order to further improve the characteristics of pipeline materials, there are generally four methods for treating the i

In the steel industry, hot-dip galvanized seamless steel pipe is widely used in many fields due to its excellent anti-corrosion performance and stable structural characteristics. The material selection of hot-dip galvanized seamless steel pipe not only determines its service life and safety but also

In the steel industry, d1420 steel pipe, as a leading material technology, is being favored by more and more industries. d1420 steel pipe not only has excellent performance but also has a wide range of applications in many fields. Next, we will explore in depth the characteristics, applications, and

DN450 seamless steel pipe is a common pipe in the steel industry, with a wide range of applications and unique characteristics. First, the application scope of DN450 seamless steel pipe DN450 seamless steel pipe, as a commonly used pipe, has been widely used in many fields 1. Oil and gas indust

Steel pipes play an important role as an indispensable material in construction, engineering, and manufacturing. Among them, Q24G steel pipes, as a common tight-fitting steel pipe, have always attracted much attention for their materials. In the steel industry, understanding the characteristics of s

First, introduction to DN150 galvanized steel pipe DN150 galvanized steel pipe is a steel pipe with an outer diameter of 150mm and an inner diameter of 127mm, mainly used to transport fluids such as water, gas, and air. A galvanized steel pipe is a steel pipe that has been hot-dip galvanized and ha

In the steel industry, the seamless steel pipe A179 standard is one of the important standards that has attracted much attention. As a commonly used pipe, seamless steel pipe is widely used in industrial production and construction. The A179 standard refers to the specific production standards and t

16Mn spiral steel pipe is a steel product commonly used in structural construction. Its excellent performance and wide application fields make it popular. From material to processing technology, and then to application fields, the following will introduce you to the relevant knowledge of 16Mn spiral

DN15 plastic coated steel pipe is a pipe widely used in construction, industry, and civil fields. It has excellent corrosion resistance, high strength, and good sealing, and is widely used to transport various media such as liquids, gases, and solids. 1. Characteristics of DN15 plastic coated ste

1. Insufficient filling of steel section corners. 1.1 Defect characteristics: Insufficient filling of steel section corners caused by insufficient filling of finished product holes, resulting in a lack of metal at the edges and corners of steel sections. Its surface is rough, mostly along the entir

OD75 steel pipe is a common steel pipe specification with a wide range of applications. Its outer diameter is 75 mm, which is a medium-sized steel pipe. First, the characteristics of OD75 steel pipe OD75 steel pipe has the following significant characteristics: 1. Moderate size: The OD75 mm ste

Seamless steel pipe is a commonly used pipe material, widely used in oil, natural gas, chemical industry, electricity, heating, gas supply, machinery, construction, and other fields. Seamless steel pipes can be divided into various specifications according to wall thickness and diameter, and seamles

First, introduction Steel pipe, as an important metal material, is widely used in various fields. The wall thickness of steel pipe is one of the important indicators to measure its quality and performance. Second, the classification of common steel pipe wall thickness Steel pipe wall thickness