First, the surface of low-quality seamless steel pipes is prone to scarring. This is mainly caused by two reasons: (1) Low-quality seamless steel pipes have more impurities and uneven materials. (2) The guide equipment of low-quality pipe manufacturers is simple and is particularly easy to stick

When surfacing welding is performed on the surface of 304 stainless steel strips, defects are prone to occur during surfacing welding due to the different metal properties of the surfacing layer, resulting in a decrease in the overall quality of 304 stainless steel strips. What defects during surfac

1. Surface defect-induced quenching cracks When a certain unit rolls 26CrMo4s alloy structural pipes, small quenching cracks often appear on the inner wall. Photos of the polished micromorphology show that there are many surface defects such as pits and warping with a depth of no more than 0.2mm on

What is corrosion? Corrosion is an electrochemical process in which a metal reacts with its surroundings, and the resulting degradation triggers a loss of material properties such as mechanical strength, appearance, and impermeability to liquids and gases. The cause of corrosion is the energy diffe

First, different properties 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 the edge of the tube blank, and the pressure welding is carried out under the act

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

When you buy steel pipes, you often see the logo "DN800". What does this mean? This is describing the size of the steel pipe. Let me explain it to you in detail. 1. What does DN800 mean? "DN" stands for the abbreviation of "Diamètre Nominal", which is French for "nominal diameter" and is used to

First, understand the basic knowledge of 125-degree galvanized steel pipes. 1. What is a 125-degree galvanized steel pipe? - A 125-degree galvanized steel pipe is a steel pipe with high corrosion resistance. It is galvanized by immersing the surface of the steel pipe in molten zinc liquid. - Galv

Steel plays an important role in modern industry, and 45Mn2 seamless steel pipe, as steel with superior performance, is widely used in all walks of life. Its outstanding characteristics make it an indispensable material in the fields of construction, petroleum, chemical industry, machinery, etc.

Seamless steel elbows: steel elbows are a type of pipe fittings used at the bends of pipes. Among all the pipe fittings used in the pipeline system, the proportion is about 80%. Usually, different forming processes are selected for steel elbows of different materials or wall thicknesses. Common seam

In the construction sequence of steel pipe piles, we should first grasp all aspects of the project for comprehensive consideration and analysis, such as construction machinery, construction period, design requirements, geomorphic environment, engineering volume, layout, steel pipe pile specification

With the continuous development of industrial technology, the steel industry plays an important role in modern society. Among many steel products, precision hydraulic seamless steel pipes have attracted much attention for their unique characteristics and wide application fields. 1. Overview of pr

Galvanized steel pipe (SC) is a common steel pipe material, which is treated by hot-dip galvanizing technology during the manufacturing process. So, what does SC mean for galvanized steel pipe? 1. Basic concept of galvanized steel pipe A galvanized steel pipe refers to a pipe that is immersed in

First, the overview of 106B seamless steel pipe Seamless steel pipe is a common steel product, and 106B seamless steel pipe is one of them. It is made of high-quality carbon steel and has excellent heat resistance and pressure resistance. 106B seamless steel pipe is usually used in high-temperature

1. Definition of DN80 galvanized steel pipe DN80 galvanized steel pipe refers to a galvanized steel pipe with an outer diameter of 80 mm and a wall thickness of 3.5 mm. It is a medium-sized steel pipe, mainly used for transportation and structural purposes in industries such as liquids, gases, petr

The causes of surface defects of seamless steel pipes are complicated. There are hundreds of influencing factors listed. Sometimes the same defect has dozens of factors, and the generation of defects has a great relationship with the type of steel. This is the reason why the production of seamless s

Stainless steel precision tubes are called precision tubes because they have high precision, good tolerance control range, uniform wall thickness, smooth inner wall, no lines, and smoother surface roughness than ordinary tubes. 1. Definition of surface roughness First of all, let's understand wh

586 stainless steel pipe, as a high-quality stainless steel material, has many unique characteristics and wide applications. In the steel industry, 586 stainless steel pipe is favored for its superior performance and diverse uses and has become one of the indispensable materials. First, the chara