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2025-10-14Product News
Material re-inspection of SMLS pipe
Material re-inspection of SMLS (Seamless) pipes is a crucial quality verification process conducted when steel pipes arrive at the user’s site, during production, or before storage. The purpose is to confirm that the pipe’s chemical composition and mechanical properties meet the requirements of the purchase contract and relevant standards. Re-inspection is typically carried out when there are concerns about the product’s quality, doubts regarding the manufacturer’s warranty, or when project specifications require mandatory re-testing. The following provides a comprehensive overview of the purpose, items, and procedures involved in the re-inspection of seamless steel pipe materials.
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2025-10-13Product News
Thermal cycling performance of boiler tubes
Boiler tubes are critical components of boiler systems. Their thermal cycling performance—the ability to maintain mechanical strength and structural stability under repeated heating and cooling—directly determines the boiler’s safety, efficiency, and service life. Because boiler tubes experience frequent thermal fluctuations during operation, understanding and improving their thermal cycle performance is essential.
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2025-10-10Product News
Overview of stainless steel seamless pipe
Stainless steel seamless pipe is a critical material in modern industry. Thanks to its excellent corrosion resistance, high mechanical strength, and superior processing performance, it is widely used across sectors such as petroleum, chemical processing, pharmaceuticals, food, and aerospace. Compared with welded steel pipes, seamless stainless steel pipes have no weld seam, which means greater pressure resistance, higher structural integrity, and improved safety. Below is a comprehensive overview of the manufacturing process, classification, standards, and key applications of stainless steel seamless pipes.
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2025-10-09Product News
Understanding 904L stainless steel pipe
904L stainless steel pipe is a premium-grade material known for its exceptional corrosion resistance and strength. Designed for use in harsh and highly corrosive conditions, it has become an essential material in the chemical, petroleum, and pharmaceutical industries.
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2025-09-29Product News
321 stainless steel seamless pipe
321 stainless steel is an austenitic stainless steel stabilized with titanium. The titanium addition significantly enhances resistance to intergranular corrosion, especially in the high-temperature range of 450°C to 800°C. Compared to 304 stainless steel, 321 offers superior performance in high-temperature and corrosive environments, making it widely used in petrochemical, aerospace, food processing, medical equipment, and energy industries.
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2025-09-28Product News
Market demand trend of boiler tubes
As essential components in industries such as thermal power, petrochemicals, and shipbuilding, the demand for boiler tubes—alongside seamless and ERW pipes—closely follows the development of these sectors. In recent years, global energy restructuring, stricter environmental policies, and the growth of emerging markets have reshaped the boiler tube market, driving new trends.
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2025-09-26Product News
Stainless steel pipe degreasing methods and key points
To maintain the surface quality of stainless steel tubes and ensure stable performance, degreasing and cleaning are essential steps in surface treatment. Below are four widely used stainless steel pipe degreasing methods.
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2025-09-22Product News
Characteristics and requirements of ERW Pipes for steam
ERW (Electric Resistance Welding) is a pipe manufacturing process where high-frequency current heats and fuses the edges of a steel strip under pressure. The method offers high efficiency and low cost, making ERW pipes widely used in medium- and low-pressure steam transport systems.
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2025-09-18Product News
Major defects in seamless steel pipes
Seamless steel pipes are widely used in industries such as petroleum, chemical, power, and construction due to their strength, durability, and reliability. However, defects that arise during production or processing can severely impact pipe quality, performance, and safety. To ensure seamless steel pipes meet strict industry standards, it is important to understand the common defects, their causes, and effective prevention methods. Below, we explore the eight major defects found in seamless steel pipes.
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2025-09-16Product News
15CrMoG seamless steel pipe
15CrMoG seamless steel pipe is a chromium-molybdenum alloy steel pipe widely used in high-temperature and high-pressure applications. Thanks to its outstanding strength, oxidation resistance, and stability, it has become a critical material in industries such as power generation, petrochemicals, and boiler manufacturing.
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2025-09-15Product News
022Cr25Ni7Mo4N duplex stainless steel seamless pipe
022Cr25Ni7Mo4N duplex stainless steel seamless pipe is a high-performance material widely used in demanding industries. It complies with TSG D7002 Rules for Type Testing of Pressure Piping Components, ensuring reliability and safety.
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2025-09-10Product News
Scrap standards for boiler tubes
Boiler tubes are vital components in any boiler system. Their performance directly impacts safety, reliability, and efficiency. Boiler tubes may be manufactured as seamless pipes (for strength and uniformity) or ERW pipes (for cost-effective performance). Regardless of type, proper inspection and scrapping criteria must be applied. Below are the key standards.
