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

Founded in 1990, our factory in China specializes in the production and supply of high-quality seamless steel pipes. Spanning an impressive 90,000 square meters, we focus on technical innovation and continuously enhancing product quality. Our dedicated team has propelled the company to notable achievements, including ISO9001:2000 international quality system certification in 2004 and the API certification from the USA in 200Our kerlimar brand seamless steel pipes are recognized as premium products in Hebei Province.

We offer a diverse range of seamless steel pipes across eight series, including those designed for low and medium pressure boilers, petroleum casing, maritime applications, fluid conveyance, petroleum cracking, chemical fertilizer equipment, structural use, and hollow pumping rods. Our seamless steel pipes are available in sizes ranging from OD 1/4 to OD 32, with thickness options like SCH30, SCH40, SCH80, and SCH160. We adhere to international standards such as GB, ASTM, API 5L, API 5CT, DIN, and JIS. Our products have gained a strong reputation both domestically and internationally, being sold across China and exported to numerous countries and regions including Southeast Asia, the Middle East, Europe, and America.

    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 employees, the company has made satisfactory achievements. We successfully passed the ISO9001:2000 international quality system certification in 2004 and obtained the API certification of the USA in 2008. Our "kerlimar" brand seamless steel pipe is highly evaluated as a quality product in Hebei Province.

    Established in 1990

    Over three decades of manufacturing expertise, operating across a spacious 90,000 square meter facility.

    Certified Quality

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

    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 OD 1/4” to OD 32”, with thicknesses including SCH30, SCH40, SCH80, SCH160, and more, conforming to standards such as GB, ASTM, API 5L, API 5CT, DIN, and JIS. Our products are widely distributed across China and exported to dozens of countries and regions, including Southeast Asia, the Middle East, Europe, and America, enjoying high prestige in both domestic and international markets.

    Product Range & Specifications
    • Outer Diameter: OD 1/4” to OD 32”
    • Wall Thickness: SCH30, SCH40, SCH80, SCH160, etc.
    • Standards: GB, ASTM, API 5L, API 5CT, DIN, JIS
    • 8 Key Series: Boilers, Petroleum Casing, Ships, Fluids, Cracking, Fertilizers, Structures, Pumping Rods

    For many years, our company has consistently adhered to the operation concept of "quality first and continuous improvement," supplying premium quality products to customers globally in industries such as electric power, chemical, petrochemical, pharmaceutical, boiler, heating, and shipbuilding. Additionally, we offer custom development services to manufacture new products tailored to specific customer requirements.

    We prioritize survival through quality and constantly innovate in technology and management. This dedication has allowed us to establish a sound scientific management and quality assurance system. Customer satisfaction, persistent innovation, and superior service remain our primary pathways to gaining trust. We consistently seek better product management systems, leveraging our ISO9001 and API 5L certifications to build a reliable manufacturing base for high-performance seamless steel pipes.

    Our workshop functions as a professional manufacturing center for seamless steel pipes. Equipped with mature technology and high-precision production line machinery, we ensure reliable quality control to satisfy the distinct specifications and requirements of our global clientele.

    Technical Parameters

    Parameter Type Details & Specifications
    Common Materials 20#, Q345
    Technical Standards API 5L B, ASTM A106 Gr.B, ASTM A53 Gr.B
    Boiler & Special Pipes High-pressure boiler pipe GB5310-1995, Low- and medium-pressure boiler pipe GB3087-1999
    Cracking & Fertilizer Pipes Special pipe for fertilizer making GB6479-2000, Pipe for petroleum cracking GB9948-2000
    Structural & Support Pipes Fluid pipe GB/T8163-1999, Structural pipe GB/T8162-1999, Hydraulic support pipe GB/T17396-1998

    Frequently Asked Questions (FAQ)

    Q1: What product series do you specialize in?

    We specialize in 8 main series of seamless steel pipes, including pipes for low and medium pressure boilers, petroleum casing, ships, fluid conveyance, petroleum cracking, chemical fertilizer equipment, structures, and hollow pumping rods.

    Q2: What size ranges and thicknesses can you manufacture?

    We can produce seamless steel pipes from Outer Diameter (OD) 1/4” up to OD 32”, with wall thickness schedules such as SCH30, SCH40, SCH80, SCH160, and more.

    Q3: Which international manufacturing standards do your pipes conform to?

    Our products conform to major international and domestic standards, including API 5L, API 5CT, ASTM, DIN, JIS, and various GB standards (e.g., GB5310, GB6479, GB9948, GB3087, GB/T8163, GB/T8162, and GB/T17396).

    Q4: What 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.

    Q5: What are the common materials used in your production?

    Our common production materials include 20# and Q345, which are manufactured to strict technical requirements for reliable performance.

    Q6: Can you manufacture custom seamless steel pipes?

    Yes, we can develop and manufacture new seamless steel pipe products tailored specifically to our customers' structural and technical requirements.