Company News

• 2025-04-15

  What Is EN 10219 Standard?

  The EN 10219 standard is a European specification that specifies the technical delivery conditions for cold-formed welded structural hollow sections made of non-alloy and fine grain steels. These hollow sections are widely used in the fields of construction, civil engineering, machinery and steel structures, and feature high strength, good weldability and a good strength-to-weight ratio. If you are working with square, rectangular or round hollow sections (CHS, RHS, SHS), especially in structural applications, understanding the EN 10219 standard is essential to ensure quality, compliance and performance.

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• 2025-04-14

  C Channel Steel Meaning

  C channel steel, also called C-beam or channel steel, is a structural steel component featuring a cross-section shaped like the letter “C.” It is commonly produced using hot-rolled steel and is known for its broad, flat surface with two right-angled flanges on each side. The outer borders are typically angled, and the corners are slightly rounded, improving structural strength and resistance to stress.

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• 2025-04-14

  What Is a Casing Pup Joint?

  A casing pup joint is a short casing pipe used in oil and gas wells. Unlike standard casing, which typically comes in lengths of 40 feet or more, pup joints are much shorter—usually between 2 and 10 feet. They are threaded at both ends and made to match the diameter, weight, and grade of the main casing string.A Casing Pup Joint is a short section of casing or tubing used to adjust the length of the casing string. Unlike standard casing, pup joints are typically shorter than the API 5CT range R1. Despite their length, they maintain the same thread type, grade, and diameter as the casing they connect.

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• 2025-04-11

  Stainless Steel Elbow VS Stainless Steel Joint

  Many people don't know how to distinguish stainless steel elbows from joints, and sometimes they confuse them. In fact, stainless steel elbow is one of the stainless steel joints. So how do you distinguish them? Below, baowi steel will talk about the difference between stainless steel elbow and stainless steel joint.

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• 2025-04-11

  Stainless Steel Elbow

  Stainless steel elbow is a kind of curved pipe fitting used for pipeline connection, which is processed by cold bending or hot bending. It is usually made of stainless steel, such as 304 stainless steel and 316 stainless steel. Stainless steel material makes the elbow have good corrosion resistance and heat resistance, which is suitable for various chemical, petroleum, food, pharmaceutical and other industries. The main difference between stainless steel elbow and carbon steel elbow is the material, and its chemical composition will keep the elbow surface from rusting and corrosion for a long time. In the pipeline system, the elbow is a pipe fitting that changes the direction of the pipeline. According to the angle, there are three most commonly used types: 45 and 90 180, and other elbows with abnormal angles such as 60 are also included according to the engineering needs.

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• 2025-04-10

  Advantages and precautions of stainless steel welded pipes

  Stainless steel welded pipes are made by reacting molten metal with iron matrix to produce alloy layer, so that the matrix and coating are combined. Hot-dip galvanizing is to pickle the steel pipe first. In order to remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned in an ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to the hot-dip galvanizing tank. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.

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• 2025-04-10

  304 Stainless Welded VS Seamless Pipe

  As an important steel product, stainless steel pipes are widely used in many fields such as building decoration, industrial manufacturing, chemical pipelines, food hygiene, medical equipment, etc. According to different production processes, stainless steel pipes are mainly divided into two categories: seamless pipes and welded pipes. Although both are stainless steel materials, there are many differences in manufacturing methods, structural characteristics, performance, and usage scenarios.

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• 2025-04-09

  Difference between steel pipe pile and steel sheet pile

  In construction and civil engineering, steel piles are essential elements that provide stability and support to structures. Among the most common types of steel piles are steel pipe piles and steel sheet piles. Although both serve to support foundations and structures, they have different characteristics, installation methods, and applications. In this article, we will explore the key differences between these two types of steel piles.

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• 2025-04-09

  What is API 5L Standard

  In the oil and gas industry, the safety and reliability of pipelines are of vital importance. In order to ensure the uniform standards of oil and gas pipelines worldwide, the American Petroleum Institute (API) has developed a series of standards, among which API 5L is one of the core standards for steel pipes. So, what is API 5L? Why is it important? What fields does it apply to? This article will analyze API 5L in depth.

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• 2025-04-08

  Advantages and disadvantages of galvanized steel pipe

  Galvanized steel pipe is a kind of pipe material widely used in construction, machinery, chemical industry and other fields. Its manufacturing process and production method play a vital role in the quality and performance of the product. The surface of the galvanized pipe is coated with a layer of zinc, which can effectively protect the steel from corrosion. It is usually used in outdoor buildings, such as fences and handrails, or some indoor pipes. In practical applications, understanding the advantages and disadvantages of galvanized steel pipes can help us choose the right materials according to needs, thereby improving the quality and efficiency of the project. Galvanized steel pipes have both unique advantages and certain disadvantages.

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• 2025-04-08

  MS Rectangular Tube Meaning

  MS Rectangular Tube refers to Mild Steel rectangular hollow sections. These tubes are made from low-carbon steel, providing strength and versatility at a reasonable cost. Low carbon steel (with less than 0.25% carbon content) does not harden easily, making it highly workable and user-friendly. Because of its low carbon content, mild steel can be easily welded and shaped into various pipe forms and structural sections. Known for their rectangular shape and hollow structure, MS tubes are widely used in construction, engineering, fabrication, and industrial applications.

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• 2025-04-07

  API Spec 7-1 Drill Collar

  Drill collars are auxiliary equipment used at the bottom of the drill string and are key components of the drill tool assembly. The main features of drill collars are thick wall thickness and high gravity. The wall thickness is generally 38~53mm, which is equivalent to 4~6 times that of the drill pipe. Due to the special working environment, the drill collar exerts pressure on the drill bit during the rock breaking process and plays a leading role in straight hole drilling. It needs to have good rigidity.

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