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What are the detection methods for oil casing
Oil casing is a high-end product produced by steel pipes. There are many types of casings, and there are many types and requirements for the buckle types of casing ends. The buckle types that can be processed include STC, LC, BC, VAM, etc. The production and installation process of oil casing inv...Read more -
The purpose of preheating the spiral steel pipes before welding
Important components of alloy steel and thick parts must be preheated before welding. The purpose of preheating before welding is as follows: (1) Preheating can slow down the cooling rate after welding, allowing hydrogen to diffuse and escape in the weld metal, avoiding cracking caused by hydroge...Read more -
Quality problems in the production process of seamless steel pipes – quality defects and prevention of oil well pipes
The quality defects of oil well pipes mainly come from three aspects: First, the quality defects of the oil well pipe body itself, such as the mechanical properties, internal connection, and weighing of the pipe body that does not meet the requirements; Second, the quality defects caused by the o...Read more -
What are the requirements for the storage of anti-corrosion steel pipes
1. The appearance of anti-corrosion steel pipes entering and leaving the warehouse needs to be checked as follows: ① Check each pipe to ensure that the surface of the polyethylene layer is flat and smooth, without dark bubbles, pitting, wrinkles, or cracks, and the overall color needs to be unifo...Read more -
Surface defects and causes of seamless steel pipes
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 seamles...Read more -
Understanding the weight of industrial DN50 steel pipes
In construction, engineering, and manufacturing, steel pipes are indispensable materials, and as one of the common specifications, the weight of DN50 steel pipes is crucial for engineering design and construction. 1. Size and weight of DN50 steel pipes DN50 steel pipes refer to pipes with a nomin...Read more -
Choose the appropriate outer diameter of 300 steel pipe
Choosing the appropriate outer diameter of 300 steel pipe is crucial for the smooth progress of the project. The choice of the outer diameter of 300 steel pipe involves many aspects such as the safety, load-bearing capacity, and use effect of the project. Therefore, it is necessary to consider va...Read more -
Industrial seamless steel pipe DN1250 outer diameter
In the steel industry, seamless steel pipe DN1250 outer diameter is an important steel product. It not only plays an important role in the steel industry but also plays a key role in construction projects. 1. Understanding seamless steel pipe DN1250 outer diameter Seamless steel pipe is a steel p...Read more -
How to choose the right DZ55 steel pipe
DZ55 steel pipe is a common steel pipe material, widely used in construction, machinery, petroleum, and other fields. But among the many steel pipe varieties, how to choose the right DZ55 steel pipe is a problem that needs to be considered. First, understand the material characteristics of DZ55 s...Read more -
Understand the characteristics and application fields of high-temperature alloy steel pipes
P22 steel pipe is a high-temperature alloy steel pipe with excellent high-temperature resistance and corrosion resistance. It is widely used in petrochemical, power, oil refining, and other fields. 1. Characteristics of P22 steel pipe P22 steel pipe is a low-alloy steel pipe containing a certain ...Read more -
Phosphate-treated seamless steel pipes are highly corrosion-resistant materials
Phosphate-treated seamless steel pipes are a special treatment process that forms a phosphate layer on the surface of steel pipes. It can not only improve the corrosion resistance of steel pipes but also increase their surface hardness, thereby improving the overall service life and performance s...Read more -
Carbon steel pipeline quality control requirements
Carbon steel pipeline is a kind of pipeline material widely used in the industrial field. It has good mechanical properties and corrosion resistance and is widely used in petroleum, chemical, natural gas, and other industries. To ensure the quality of carbon steel pipelines, there are a series of...Read more
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