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China Seamless Steel Pipe Factory: Top Suppliers for Precision Manufacturing and Reliable Performance

Founded in 1990, our factory specializes in the production and supply of high-quality seamless steel pipes. Spanning 90,000 square meters, we have consistently focused on technical innovation and enhancing product quality. Our dedicated team has successfully achieved significant milestones, including ISO 9001:2000 certification in 2004 and API certification in 200Our kerlimar brand seamless steel pipes are recognized for their superior quality throughout Hebei Province in China.

We offer a diverse range of products across eight categories, including seamless steel pipes for low and medium pressure boilers, petroleum casing pipes, marine applications, fluid conveyance, petroleum cracking, chemical fertilizer equipment, structural uses, and hollow pumping rods. Our production range accommodates seamless steel pipes with outer diameters from OD 1/4 to OD 32, available in various wall thicknesses such as SCH30, SCH40, SCH80, and SCH160, adhering to standards including GB, ASTM, API 5L, API 5CT, DIN, and JIS. Our products are distributed widely across China and exported to numerous countries and regions globally, including Southeast Asia, the Middle East, Europe, and America, earning us a strong reputation in both domestic and international markets.

    Product Introduction

    Established in 1990, We specialized in producing and supplying various seamless steel pipes. our workshops covers a land area of 90,000 square meters. For many years , it has been devoted to technical innovation and improvement of product quality. Thanks to the concerted efforts of all its employees, the company has made satisfactory achievements. It passed the ISO9001:2000 international quality system certification in 2004 and the API certification of the USA in 2008. Its "kerlimar" brand seamless steel pipe is evaluated as a high-quality product in Hebei Province.
    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 the standards such as GB, ASTM, API 5L, API 5CT, DIN, and JIS. Its products have been sold around China and exported to over dozens of countries and regions in the world such as Southeast Asia, the Middle East, Europe and America etc., enjoying the very high prestige in the domestic and foreign markets.
    For many years, our company has always insisted on the operation concept of "quality first and continuous improvement", and has provided a large amount of high-quality products to its customers at home and abroad in the industries such as electric power, chemical, petrochemical, pharmaceutical, boiler, heating and shipbuilding etc. In addition, we can develop new products according to customers' requirements.
    We always insists on survival by quality and has constantly made innovation in technology and management, and we have established a sound scientific management and quality assurance system.
    Satisfaction of the customers, persistent innovation and better service, are the best way to gain trust. Our company consistently seeks the better products and management system, acquired the certificate of ISO9001, API 5L to build a manufacturing base of seamless steel pipes with high-performance management, smart reaction and superior quality.

    Workshop & Technical Parameters

    Our workshop works as a professional manufacturer of seamless steel pipes. It's well-equipped, matured technology, high precision equipment of seamless production line provides the reliable guarantee for quality and meets the requirements of different customers.

    Common Materials

    20# and Q345

    Production Range

    OD1/4” to OD32”, thickness SCH30, SCH40, SCH80, SCH160, etc.

    Technical Standards Supported:
    • API 5L B, ASTM A106 Gr.B, ASTM A53 Gr.B
    • High-pressure boiler pipe (GB5310-1995)
    • Special pipe for fertilizer making (GB6479-2000)
    • Pipe for petroleum cracking (GB9948-2000)
    • Low- and medium-pressure boiler pipe (GB3087-1999)
    • Fluid pipe (GB/T8163-1999) & Structural pipe (GB/T8162-1999)
    • Hydraulic support pipe (GB/T17396-1998)

    Frequently Asked Questions (FAQ)

    What standards do your seamless steel pipes comply with?

    Our seamless steel pipes are produced according to major international standards including API 5L B, ASTM A106 Gr.B, ASTM A53 Gr.B, DIN, JIS, and Chinese GB standards (such as GB5310, GB6479, GB9948, GB3087, GB/T8163, GB/T8162, and GB/T17396).

    What sizes of seamless steel pipes can you produce?

    We can manufacture seamless steel pipes from Outer Diameter (OD) 1/4” up to OD 32”, with wall thickness classes including SCH30, SCH40, SCH80, SCH160, and others as required.

    What are the common materials used in your production?

    Our commonly used raw materials for high-quality seamless steel pipe production are 20# steel and Q345 alloy steel.

    Which industries are your seamless steel pipes used in?

    Our seamless steel pipes are widely used in electric power, chemical, petrochemical, pharmaceutical, boiler, heating, shipbuilding, petroleum cracking, chemical fertilizer equipment, structures, and hollow pumping rod applications.

    What quality certifications does your company hold?

    We passed the ISO9001:2000 international quality system certification in 2004 and obtained the API certification of the USA in 2008. We consistently seek to maintain high-performance management and superior quality.