-
2025-12-17Product News
Differences between spiral steel pipes and straight seam welded steel pipe
Spiral steel pipes and straight seam welded steel pipes are two of the most commonly used welded pipe products in large-scale pipeline and structural applications. While both rely on advanced welding technologies to achieve reliable mechanical performance, their manufacturing processes, welding methods, and application characteristics differ significantly. Understanding these differences is essential when selecting the most appropriate pipe type for a specific project.
-
2025-12-16Product News
Surface treatment methods for anti-corrosion spiral steel pipes
To ensure reliable anti-corrosion performance and extend the service life of spiral steel pipes, proper surface treatment before coating is essential. Different treatment methods serve different purposes, and in practice they are often used in combination to achieve the required cleanliness and surface roughness.
-
2025-12-15Product News
Connection methods of the industrial spiral steel pipes
In most applications, spiral steel pipes are connected by welding, as welded joints are cost-effective and suitable for the majority of project requirements. However, in certain projects, factors such as tight construction schedules, site constraints, operating conditions, or complex geographical environments may limit the use of welding. In such cases, alternative connection methods—such as threaded, flanged, socket, and grooved connections—are adopted. Below is an overview of the main non-welded connection methods used for spiral steel pipes and their characteristics.
-
2025-12-10Product News
How to choose the right small-diameter seamless steel pipe?
Selecting the right small-diameter seamless steel pipe requires considering factors such as operating environment, pressure level, temperature, corrosion resistance, structural requirements, and industry-specific standards. Below is a practical guide to choosing the appropriate specification based on different application scenarios.
-
2025-12-09Product News
Technical characteristics of double-sided submerged arc welded steel pipes
Double-sided submerged arc welded (SSAW) steel pipes are widely used in pipelines for oil, gas, water, and structural applications due to their stable performance and high manufacturing precision. Their production process offers significant technical advantages, especially for large-diameter and thick-walled pipe products. Below are the key technical characteristics that make these pipes reliable and versatile in demanding engineering environments.
-
2025-12-08Product News
Common defects in the welding zone of spiral submerged arc welded steel pipes
During the production of spiral submerged arc welded (SSAW) steel pipes, various welding zone defects may occur if process parameters, material conditions, or welding environments are not properly controlled. These defects can affect weld quality, structural integrity, and long-term performance. Below are the most common weld defects observed in SSAW pipes and their typical causes.
-
2025-12-01Product News
Manufacturing details of small-diameter precision seamless steel pipes
Small-diameter precision seamless steel pipes are produced with strict control over delivery conditions to achieve the required mechanical properties and dimensional accuracy. Different delivery states determine their performance and suitability for various industrial applications.
-
2025-11-26Product News
High-pressure seamless steel pipes for fertilizer equipment
High-pressure seamless steel pipes for fertilizer equipment are manufactured according to GB 6479 and designed for transporting high-temperature, high-pressure media in fertilizer and chemical plants. They operate reliably under –40~400°C and 10–30 MPa, ensuring safe long-term performance.
-
2025-11-25Product News
TP304 stainless steel seamless pipe
TP304 stainless steel seamless pipe is one of the most widely used austenitic stainless steel pipes in industrial systems, valued for its durability, corrosion resistance, and stable performance across demanding environments. Below is a clear and structured overview for quick reference.
-
2025-11-24Product News
Applications of 316 stainless steel seamless pipes
316 stainless steel seamless pipes are hollow, joint-free steel tubes manufactured from 316 stainless steel. Known for exceptional corrosion resistance and high-temperature performance, they are widely used in the chemical, petroleum, marine, pharmaceutical, and energy industries.
-
2025-11-19Product News
Stainless steel pipe OD and wall thickness explained
The national standard thickness of stainless steel pipes is determined primarily by the nominal diameter (DN) or outer diameter (OD). In Chinese GB standards, thin-wall stainless steel pipes are classified into Ⅰ series and Ⅲ series. Even with the same nominal diameter, the actual outer diameter may vary slightly between different series.
-
2025-11-18Product News
Seamless steel pipes for oil extraction
Seamless steel pipes (SMLS) play a vital role in oil extraction and are considered one of the core pipe materials in the petroleum industry. In modern oilfield operations, nearly all critical downhole components that must withstand high pressure are made from seamless pipes. Their superior strength, durability, and ability to handle extreme conditions without weld seams make them indispensable for drilling, oil and gas transportation, and offshore platform construction.
