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2024-05-24Product News
Flange inspection standards and methods
Flanges are essential pipe fittings used to connect pipes, equipment, valves, and other components, playing a critical role in industrial production. To ensure the safety and reliability of flange connections, rigorous inspections are necessary. Flange inspection involves the quality assessment of flange connectors during installation and use. This article outlines the standards and methods for flange inspection.
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2024-05-23Product News
How to preserve stainless steel pipes?
Proper preservation of stainless steel pipes ensures their longevity and maintains their quality. Here are some key steps to preserve stainless steel pipes effectively.
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2024-05-23Product News
Surface defect detection of A500 rectangular tube
Surface defects of A500 rectangular tubes include folds, tube pits, pockmarked surfaces, and bridge skin. This article discusses various methods for detecting these surface defects.
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2024-05-22Product News
Solutions for preventing weld seam cracking in welded steel pipes
Weld seam cracking in welded pipes is a common quality issue that affects the durability and performance of the pipes. Here are some solutions to address this problem.
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2024-05-22Product News
What is stainless steel 304 ERW pipe?
Stainless Steel 304 ERW (Electric Resistance Welded) pipes are made from 304-grade stainless steel, which is known for its excellent corrosion resistance and formability. The ERW process involves welding the seam of the pipe using electrical resistance, resulting in a strong, consistent weld. Stainless steel 304 ERW pipe is widely used in various industries due to its durability, corrosion resistance and hygienic properties. Here's an overview of the stainless steel 304 ERW pipe.
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2024-05-21Product News
Anti-corrosion spiral steel pipes for water supply and drainage
Anti-corrosion spiral steel pipes designed for water supply and drainage feature a layer of polyethylene (PE) resin, ethylene-acrylic acid copolymer (EAA), epoxy (EP) powder, and non-toxic polypropylene (PP) or non-toxic polyvinyl chloride (PVC) on the inner wall, with a thickness ranging from 0.5 to 1.0 mm. These plastic-coated steel pipes combine the strength, ease of connection, and resistance to water flow impact of traditional steel pipes with the corrosion resistance, cleanliness, and lack of scaling of plastic pipes. Additionally, they offer better strength and fire resistance compared to purely plastic pipes, with a design life of up to 50 years.
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2024-05-21Product News
How to judge the quality of steel pipes?
Assessing the quality of steel pipes is crucial for ensuring their suitability for various applications, such as construction, oil and gas transportation, and industrial use. Here are key factors and methods to judge the quality of steel pipes.
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2024-05-20Product News
How to choose the material for high-strength square pipes?
High-strength square pipes are made of high-quality steel, known for their high tensile and yield strength. They are widely used in various structures and projects. Typically, these pipes are manufactured from high-quality steel plates through processes like cutting, forming, and welding, resulting in thicker walls that can withstand greater pressure and weight. Here’s how to choose the right material for high-strength square tubes.
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2024-05-20Product News
Repair welding operation process of welded steel pipes
Welded steel pipes are steel pipes with visible seams on their surface, created by bending and shaping steel strips or plates into circular, square, or other forms and then welding them. Here is an overview of the repair welding process for welded steel pipes.
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2024-05-17Product News
Requirements for quality control in the national standard of galvanized steel pipes
The national standards for galvanized steel pipes have a series of requirements for quality control. These requirements ensure that the quality and performance of galvanized steel pipes can meet specific engineering needs. The quality control requirements of the national standards for galvanized steel pipes are mainly reflected in the following aspects.
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2024-05-17Product News
Treatment method of 304 stainless steel pipe after welding
The 304 stainless steel welded pipes are recognized for their commendable attributes such as robust corrosion resistance, efficient heat transfer, and the ability to withstand high pressures. It is imperative that following the welding process, these pipes undergo a thorough pickling and passivation treatment. This treatment should be applied concurrently to the entire product, not just the welded areas, to ensure uniformity and optimal performance. However, welding can sometimes lead to various complications, including localized corrosion and even rust formation under conditions of relatively mild corrosion. This necessitates a careful and methodical approach to post-weld handling of 304 stainless steel pipes.
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2024-05-16Product News
Introduction to the quality technology and special uses of large-diameter flanges
The large-diameter flange is cut from a medium plate into strips and then rolled into a circle, and then the water lines, bolt holes, etc. are processed. Large-diameter flanges can be up to 7 meters long and are made of carbon steel, stainless steel, alloy steel, etc. Large-diameter flange is a type of flange with a wide range of uses. It is mostly used when the medium conditions are relatively mild, such as low-pressure unpurified compressed air, low-pressure circulating water, etc. Here is an introduction to the quality technology and special uses of large-diameter flanges.
