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How to judge the quality of spiral steel pipes
1. From the surface of the spiral steel pipe, see whether the production process of the spiral steel pipe is exquisite. Generally, it is necessary to study and analyze the spiral steel. The cross-section of the fake and inferior spiral steel pipe is elliptical. The reason is that the manufacturer...Read more -
Characteristics and applications of hydraulic steel pipes and seamless steel pipes
Hydraulic steel pipes and seamless steel pipes are common materials in the steel industry and are widely used in the industrial field. Hydraulic steel pipes are a type of pipeline specifically used to transport liquids or gases, while seamless steel pipes are a common material for manufacturing h...Read more -
Choose the right wall thickness to ensure the safe use of steel pipes
The wall thickness of ordinary steel pipes refers to the wall thickness of the steel pipe, which is one of the important parameters that determine the strength and service life of the steel pipe. When choosing ordinary steel pipes, reasonable wall thickness selection is very critical, which can n...Read more -
Effect of heat treatment temperature on 508x6mm straight seam steel pipe and its application
First, the importance of temperature Temperature is a crucial factor in the production and application of steel. The performance and characteristics of steel are often affected by temperature, and temperature control can have an important impact on the quality and use of steel. In the steel indus...Read more -
Advantages, applications, and purchase guide of 159 seamless steel pipes
Seamless steel pipes are an important steel product, which are widely used in various industries. Among them, 159 seamless steel pipes, as a common specification, have many unique advantages and characteristics. 1. Advantages of 159 seamless steel pipes 1.1 High strength: 159 seamless steel pipes...Read more -
Physical and chemical properties and appearance inspection of high-frequency welded pipes
Chemical properties of high-frequency welded pipes: room temperature mechanical properties, high-temperature mechanical properties, low-temperature properties, and corrosion resistance. The physical and chemical properties of high-frequency welded pipes mainly depend on the chemical composition o...Read more -
High-frequency welding process for submerged arc steel pipe
Introduction to high-frequency welding process for 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 an opening gap. The pressing amount of the ext...Read more -
What are the factors that cause horizontal lines in spiral seam submerged arc welded steel pipes
First, it may be due to the stress of spiral seam submerged arc welded steel pipes. That is, the residual stress and welding stress after the steel pipe is formed. Secondly, it is due to the presence of hydrogen. For example, the flux is not dried enough, the preheating temperature is not suffici...Read more -
Safety protection in the construction of anti-corrosion steel pipes
At present, the most commonly used steel pipes are anti-corrosion steel pipes. There are mainly 3PE anti-corrosion steel pipes, TEPE anti-corrosion steel pipes, epoxy resin anti-corrosion steel pipes, etc. So, what should be paid attention to during the construction of anti-corrosion steel pipes?...Read more -
Introduction to Common Methods of Steel Pipe Welding
At present, the commonly used methods for steel pipe welding include metal arc welding (SMAW), submerged arc welding (SAW), gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), flux-cored arc welding (FCAW) and downward welding. (1) The advantages of metal arc welding are simple equipme...Read more -
Common surface treatment types and characteristics of hot-dip galvanized steel coils
Analyze the common surface treatment types and characteristics of hot-dip galvanized steel coils to provide a reference for selecting appropriate surface treatment processes. 1. No treatment: No chemical passivation, oiling fingerprint-resistant film coating, or other surface treatments. This typ...Read more -
Three major factors of heat treatment deformation of thick-walled stainless steel pipes
It is well known that the performance of thick-walled stainless steel pipes will be better after heat treatment, and it will be more in line with the performance requirements of mechanical parts. However, during the heat treatment process, metal materials will have problems such as deformation. T...Read more