About Cangzhou Hengjia Pipeline Co., Ltd. - Steel Pipes Supplier in China

China, specifically the Cangzhou region, hosts Cangzhou Hengjia Pipeline Co., Ltd., which currently lists five distinct pipe products in its catalogue. The company’s offerings fall under the Steel Pipes and Plumbing categories and include hot rolled seamless carbon steel pipe, seamless carbon steel pipes, galvanized carbon steel pipe, carbon steel pipe & tube, and API 5L ERW steel pipes. Each product is classified under the HS chapter 73 family for steel tubes and pipes, which is the standard customs classification for such goods. The catalogue distinguishes between seamless and welded (ERW) manufacturing processes and between plain and galvanized finishes. These products are intended for industrial, infrastructure and plumbing applications.

Seamless pipes are produced by cold drawing of hot rolled billets, providing uniform wall thickness and high pressure capability, while ERW pipes are formed by longitudinal welding of rolled strips. Galvanized carbon steel pipe receives a zinc coating to improve corrosion resistance for water conveyance and outdoor installations. The pipe & tube entry covers both round and square cross‑sections that can be supplied in lengths up to 12 m, matching typical project specifications. The product range aligns with international standards such as ASTM A53, A106 and API 5L, which define chemical composition, tensile strength and dimensional tolerances. Buyers can select dimensions ranging from DN 15 to DN 600, with schedules that meet pressure classes up to PN 16.

Product Range and Specialties of Cangzhou Hengjia Pipeline Co., Ltd.

From the catalogue, Cangzhou Hengjia offers hot rolled seamless carbon steel pipe, standard seamless carbon steel pipes, galvanized variants, generic carbon steel pipe and tube, and API 5L ERW steel pipes. These items cover basic dimensions and pressure classes used in pipeline and plumbing projects.

In the steel pipe market, seamless pipes are frequently supplied to ASTM A53 Grade B or A106 Grade B specifications, while API 5L grades B, X42, X52, X60 and X80 are common for oil and gas transmission. Galvanized pipes usually meet ASTM A53 with a zinc coating thickness of 50 - 150 µm, suitable for water and irrigation systems. Tubes may be delivered in square or rectangular sections conforming to EN 10210 for structural applications. Buyers often request EN 10204 3.1 test certificates and mill test reports that detail chemical analysis and mechanical properties.

Trade and Export Information - Cangzhou Hengjia Pipeline Co., Ltd.

China is a major exporter of steel pipe products, and shipments from Cangzhou typically target construction and energy sectors in Southeast Asia, the Middle East, Africa and parts of Europe. The goods fall under HS code 7304, which covers steel tubes, pipes and hollow profiles, and are commonly dispatched in 20‑foot or 40‑foot containers or as bulk cargo on roll‑on/roll‑off vessels for large volume orders. Export documentation usually includes a commercial invoice, packing list, certificate of origin and, where required, a pre‑shipment inspection report from a recognized agency such as SGS or Bureau Veritas. Incoterms most frequently applied are FOB Cangzhou or CIF to the buyer’s destination port.

Importing parties often require certificates such as ISO 9001 quality management, API product certification, CE marking for EU markets, and EN 10204 inspection certificates. Steel pipes are generally packaged in timber crating or steel banding to protect against deformation, with moisture barriers for galvanized items. Compliance with local standards - e.g., API 5L for petroleum pipelines or ASTM A53 for water conveyance - is verified through mill test reports and, where applicable, third‑party testing before shipment.

Sourcing from Cangzhou Hengjia Pipeline Co., Ltd. - Buyer Guidance

When sourcing from Cangzhou Hengjia, buyers should request the latest mill test report that confirms chemical composition, tensile strength and wall thickness against the relevant ASTM or API grade. It is advisable to obtain a CE or ISO 9001 certificate if the destination market mandates those standards, as well as a product compliance declaration for the specific HS code 7304 classification. Samples of pipe ends and coating finish can be requested to assess dimensional accuracy and galvanization quality before placing a full order.

Typical minimum order quantities for seamless and ERW pipe range from 1 ton to 5 tons, depending on diameter and schedule, with lead times of 25 - 45 days from order confirmation. Buyers should verify that packaging meets the intended mode of transport - crating for container shipments or bundling for bulk sea freight - and confirm the Incoterm, which influences responsibility for freight and insurance. Prior to shipment, a pre‑shipment inspection report and a signed inspection certificate help mitigate customs delays and ensure the product meets the buyer’s specification.

What pipe manufacturing processes are represented in the supplier’s catalogue?

The catalogue includes hot rolled seamless pipes, cold drawn seamless pipes, and electric resistance welded (ERW) pipes. Both plain carbon steel and galvanized finishes are offered.

Which international standards apply to the seamless carbon steel pipes offered?

Seamless pipes are commonly produced to ASTM A53 or ASTM A106 specifications, providing defined chemical composition and mechanical properties. For pressure pipeline projects, the supplier also offers pipes meeting API 5L grades such as B, X42, X52, X60 and X80.

What certifications should a buyer request for these steel pipe products?

Buyers should request an EN 10204 3.1 or 3.2 inspection certificate together with the mill test report that details chemical and mechanical test results. Additional certifications such as ISO 9001 quality management or CE marking may be required for specific market entry.

What are the typical dimensions and pressure classes available?

Standard diameters range from DN 15 (½ in) to DN 600 (24 in) with wall thicknesses that correspond to schedules from SCH‑10 to SCH‑40. These dimensions support pressure classes up to PN 16 (approximately 16 bar).

How are the pipes packaged for international shipment?

Products are typically packed in timber crates or steel banding for container shipments, with moisture‑resistant wrapping applied to galvanized pipes. Loads are arranged in 20‑ft or 40‑ft containers or as bulk cargo on roll‑on/roll‑off vessels for larger quantities.

Which HS code is used for customs clearance of these products?

Steel tubes and pipes from China are classified under HS code 7304, covering hollow steel profiles. This code is used by customs authorities worldwide for tariff and inspection purposes.

What is the typical minimum order quantity and lead time?

Minimum order quantities generally start at 1 ton per size, though larger diameters may require higher volumes. Lead times are typically 25 - 45 days after order confirmation, depending on product dimensions and finish.