High-Quality Precision Seamless Steel Pipes from China: Trusted Suppliers & Factory for Uninterrupted Performance and Quality Manufacturer, Company

Established in 1990, our factory in China specializes in the production and supply of high-quality seamless steel pipes. Spanning an impressive area of 90,000 square meters, we are committed to technological innovation and continuous improvement in product quality. This dedication has led to significant achievements, including ISO9001:2000 certification in 2004 and API certification from the USA in 200Our kerlimar brand seamless steel pipes have been recognized as high-quality products in Hebei Province, As leading suppliers in the industry, we offer a diverse range of products encompassing 8 series, including seamless steel pipes for low and medium pressure boilers, petroleum casing pipes, pipes for ships, fluid conveyance, petroleum cracking, chemical fertilizer equipment, structural applications, and hollow pumping rods. We manufacture seamless steel pipes with outer diameters ranging from OD 1/4 to OD 32, with wall thicknesses such as SCH30, SCH40, SCH80, and SCH160, adhering to international standards including GB, ASTM, API 5L, API 5CT, DIN, and JIS. Our products are well-established in the domestic market and have also been exported to numerous countries and regions worldwide, including Southeast Asia, the Middle East, Europe, and America, earning a stellar reputation among both domestic and international clients

Product Description

Product Introduction

Established in 1990, we specialize in producing and supplying various seamless steel pipes. Our workshops cover a land area of 90,000 square meters. For many years, we have been devoted to technical innovation and the improvement of product quality. Thanks to the concerted efforts of all our employees, the company has made satisfactory achievements. We passed the ISO9001:2000 international quality system certification in 2004 and the API certification of the USA in 2008. Our seamless steel pipe is evaluated as a high-quality product in Hebei Province.

Established Heritage

Over 30 years of manufacturing excellence and technical innovation since 1990.

Certified Quality

ISO9001:2000 certified since 2004 and American Petroleum Institute (API) certified since 2008.

Global Reach

Exported to dozens of countries across Southeast Asia, the Middle East, Europe, and America.

Our main products include 8 series: seamless steel pipes for use in low and medium pressure boilers, petroleum casing pipes, ships, fluid conveyance, petroleum cracking, chemical fertilizer equipments, structures, and hollow pumping rods. We can produce seamless steel pipes from OD1/4” to OD32”, thickness SCH30, SCH40, SCH80, SCH160 and so on, according to standards such as GB, ASTM, API 5L, API 5CT, DIN, and JIS.

For many years, our company has always insisted on the operation concept of "quality first and continuous improvement", providing a large amount of high-quality products to customers at home and abroad in industries such as electric power, chemical, petrochemical, pharmaceutical, boiler, heating, and shipbuilding. In addition, we can develop new products according to customers' specific requirements.

We always insist on survival by quality and have constantly made innovations in technology and management. We have established a sound scientific management and quality assurance system to consistently seek better products and management systems, acquiring the certificate of ISO9001 and API 5L to build a manufacturing base of seamless steel pipes with high-performance management, smart reaction, and superior quality.

Technical Parameters & Manufacturing

Our workshop works as a professional manufacturer of seamless steel pipes. It is well-equipped with matured technology and high-precision production line equipment, providing a reliable guarantee for quality and meeting the diverse requirements of different customers.

Application Type Technical Standards / Specifications
Common Materials20#, Q345
Standard SpecificationsAPI 5L B, ASTM A106 Gr.B, ASTM A53 Gr.B
High-Pressure BoilerGB5310-1995
Chemical Fertilizer EquipmentGB6479-2000
Petroleum CrackingGB9948-2000
Low & Medium Pressure BoilerGB3087-1999
Fluid ConveyanceGB/T8163-1999
Structural PipesGB/T8162-1999
Hydraulic SupportGB/T17396-1998
Frequently Asked Questions

What standards do your seamless steel pipes comply with?

Our seamless steel pipes are manufactured according to major international standards including API 5L, API 5CT, ASTM A106 Gr.B, ASTM A53 Gr.B, DIN, JIS, and GB standards (such as GB5310, GB6479, GB9948, GB3087, GB/T8163, and GB/T8162).

What are the size and thickness capabilities of your seamless steel pipes?

We produce seamless steel pipes with Outer Diameters (OD) ranging from 1/4” to 32”. Available wall thickness schedules include SCH30, SCH40, SCH80, SCH160, and other custom requirements.

What certifications do your manufacturing facilities hold?

Our manufacturing facilities passed the ISO9001:2000 international quality system certification in 2004 and acquired the API certification of the USA in 2008. We also hold the API 5L certificate to ensure high-performance management.

Which industries commonly use your seamless steel pipes?

Our products are widely utilized in electric power, chemical, petrochemical, pharmaceutical, boiler manufacturing, heating, shipbuilding, and fluid conveyance industries.

What common raw materials do you use for production?

Our commonly used raw materials for seamless steel pipe production include 20# steel and Q345, alongside standard grades specified by international ASTM and API guidelines.

Can you develop customized seamless steel pipes?

Yes, in addition to our standard product series, we can design, engineer, and develop new seamless steel pipe products tailored specifically to our customers' unique requirements and specifications.

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