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2025-04-09Product News
Welded vs seamless stainless steel heat exchanger tubes
In industrial design and manufacturing, one frequently asked question is whether to use welded or seamless stainless steel pipes for heat exchanger tubes. Both types have distinct characteristics, and the best choice depends on specific application requirements and operational conditions.
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2025-04-08Product News
316L vs 304 stainless steel pipe in corrosion resistance
316L stainless steel and 304 stainless steel are two widely used austenitic stainless steels. While they share many similar properties, key differences in chemical composition lead to distinct variations in their corrosion resistance. Below, United Steel Industry Co., Ltd provides a detailed comparison of the corrosion resistance performance of 316L and 304 stainless steel pipes.
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2025-04-08Product News
Service life of galvanized steel pipes
The longevity of galvanized steel pipes is closely tied to the galvanizing process used during manufacturing. Two common methods—hot-dip galvanizing and cold-dip (electro) galvanizing—differ significantly in protection performance. This article will briefly introduce service life of galvanized steel pipes.
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2025-04-07Product News
AP MP BA and EP grade stainless steel pipe
Beyond brand, material, and manufacturing techniques, one of the most significant factors influencing the price and performance of stainless steel pipes is the surface treatment applied to both the inner and outer walls of the pipe. Surface finishing not only enhances aesthetic appearance but also improves corrosion resistance, hygiene, and mechanical properties. Common surface treatment methods include Acid Pickling (AP), Mechanical Polishing (MP), Bright Annealing (BA), and Electropolishing (EP). So, what distinguishes AP, MP, BA, and EP treatments?
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2025-04-07Product News
Introduction to hot-dip galvanized seamless steel pipe
Hot-dip galvanized seamless steel pipes are widely utilized across various industries thanks to their exceptional corrosion resistance and reliable structural integrity. The selection of pipe material plays a critical role in determining not only the safety and service life of the pipe, but also the overall quality and durability of engineering projects.
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2025-04-03Product News
Thermal expansion of stainless steel pipes
Thermal expansion refers to the increase in the volume of a material as its temperature rises. In stainless steel pipes, this phenomenon occurs due to the intensified thermal motion of molecules, which increases intermolecular distances and results in expansion. This is a universal physical property observed in most materials when heated. This article will briefly introduce thermal expansion of stainless steel pipes.
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2025-04-03Product News
Understanding the density of seamless carbon steel pipes
Seamless carbon steel pipes are widely used in various industries, making it essential to understand their density for proper selection and application.
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2025-04-02Product News
A comprehensive introduction to 40Cr precision tube
A 40Cr precision tube is a high-performance steel tube made from 40Cr alloy steel, a low-carbon alloy that contains high levels of chromium and manganese. Known for its strength, wear resistance, and corrosion resistance, the 40Cr precision tube is widely used across various industries such as machinery manufacturing, aerospace, and automotive production.
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2025-04-02Product News
How to select the thickness of carbon steel seamless pipe?
Carbon steel seamless pipes are manufactured from carbon steel materials through processes such as hot rolling and cold drawing. Given the critical role of carbon steel seamless pipes in such complex and high-demand environments, selecting the appropriate wall thickness is essential. The choice of thickness should consider the specific application and the pressure the pipe will bear, as selecting the right thickness contributes to both safety and durability.
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2025-04-01Product News
Welding requirements for hot-rolled seamless steel pipes
Hot-rolled seamless steel pipes have unique welding requirements compared to other types of steel pipes. The quality of welding directly affects the overall strength, durability, and long-term performance of the pipe. To ensure a smooth welding process and high-quality welded joints, the following key requirements must be carefully observed.
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2025-04-01Product News
Key points of machining cold drawn seamless pipes
Cold drawn seamless pipes are a specialized category of seamless steel pipes, characterized by their weldless construction, formed through perforation, rolling, and cold drawing processes. While they share similarities with standard seamless pipes, the difference lies in their subsequent processing techniques, which require careful handling to maintain quality and efficiency. To ensure optimal machining results, several critical factors must be considered. Below are eight key points to keep in mind when machining cold drawn seamless pipes.
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2025-03-31Product News
Seamless pipes used in hydraulic systems
In hydraulic systems, seamless pipes serve as essential transmission components, with their material properties directly influencing the system's safety and efficiency. Depending on working conditions and application requirements, hydraulic systems typically use the following types of seamless pipes.
