Home > Products > Metallurgy , Mining & Energy > Metallurgy & Mining > Stainless Steel

Product Introduction: Seamless Stainless Steel Pipes

In the modern industrial landscape, the demand for high-quality seamless stainless steel pipes continues to rise across various sectors, including oil and gas, chemical processing, pharmaceuticals, and construction. Our seamless stainless steel pipes stand out for their exceptional performance, durability, and versatility, making them an ideal choice for critical applications where strength and reliability are paramount.

Steel Grades

We offer a comprehensive range of steel grades including TP304, TP304L, TP304H, TP316, TP316L, TP316H, TP317L, TP321H, TP347H, TP310S, TP430, 904L, and various UNS grades such as S31803, S32304, and S32750. Each grade has been meticulously selected to meet specific industry requirements, ensuring that our products can withstand extreme environments and corrosive conditions. For example, TP304 and TP316 grades are widely used due to their excellent corrosion resistance and strength, while high-performance alloys such as S32750 offer enhanced mechanical properties and resistance to pitting.

Industry Standards

Our seamless stainless steel pipes adhere to rigorous industry standards such as SA/ASTM A312, SA/ASTM A213, JIS G3459, JIS G3463, and SA/ASTM A789 and A790. These standards are critical as they ensure that our pipes not only meet but exceed customer expectations for quality and performance.

Manufacturing Process

Utilizing advanced cold drawn and cold rolled processes, we produce seamless pipes that exemplify precision and durability. Cold drawing increases the tensile strength of the pipes while providing excellent dimensional accuracy and surface finish. Depending on the application, suppliers and end-users can select the pipe methods that best suit their operational requirements.

Surface Finish

Our seamless stainless steel pipes are offered in various finishes, including annealed, pickled, and polished. The finishing processes are designed to enhance the pipes' resistance to corrosion and improve their aesthetic appeal, making them suitable for both industrial and architectural applications.

Size Specifications

Available in a comprehensive range of sizes, our seamless pipes can accommodate different needs:

• Nominal Pipe Size (NPS): Ranges from 1/8" to 48".
• Schedule: Options include 5S, 10S, 20S, 40S, 80S, 120S, and 160S, in accordance with ANSI B36.19.
• Outside Diameter (O.D.): From 10.29 mm to 1219 mm.
• Wall Thickness (W.T.): Between 1.24 mm to 60 mm.
• Length: Maximum length available is 20 meters.

These specifications make our seamless pipes flexible for various applications, whether for high-pressure systems or more general purpose installations.

Quality Control and Examination

Quality is at the forefront of our manufacturing process. Each batch of seamless stainless steel pipes undergoes a series of rigorous tests, including but not limited to:

• Eddy current inspection
• Ultrasonic testing
• Ultrasonic thickness measurement
• Hydrostatic testing
• Mechanical testing
• Chemical composition direct reading spectral analysis
• Hardness measurement
• Metallographic testing
• X-ray inspection

These modern detection techniques guarantee that our products are delivered free of defects and meet stringent quality assurance standards.

Packaging and Certification

Our seamless pipes are packaged securely in seaworthy wooden cases, steel-framed plywood cases, or simple packaging to prevent damage during shipping. Additionally, we hold various certifications including API 5LC-0025, API 5LC-0027, CCS, ABS, BV, GL, DNV, KR, RINA, ISO9001-2008, ISO-2008, and PED. These credentials affirm our commitment to quality and reliability in the marketplace.

Supply Capability

With a robust supply capability of up to 500 metric tons per month, we are well-equipped to meet the high demands of our clients while ensuring timely delivery. Our global network and operational efficiency allow us to serve diverse industrial sectors effectively.

Conclusion

In a competitive environment where performance and reliability are crucial, our seamless stainless steel pipes provide a robust solution that meets a variety of application needs. With a commitment to quality, adherence to international standards, and a diverse range of steel grades and specifications, we are poised to support your industrial requirements effectively. Trust us for your seamless stainless steel pipe needs, and experience a new standard in quality and service.