About Jilin Senfeng Pipe Co., Ltd. - Pipe Products Supplier in China

Jilin Senfeng Pipe Co., Ltd. operates in Jilin province, China and lists 135 active products across a spectrum of ductile‑iron pipe and fitting items. The catalogue includes items such as Di Double Flange 90 Duckfoot Bend (HS code 7307.19, material Grade 400‑15), Di Socket Spigot Pipe K9 L=6 m (HS code 7303.00, DI material), Di Flange Pipe K9/12 (HS code 7303.00, SG Iron), Di Flexible Coupling (HS code 7307.99, EN‑GJS‑400‑15 / ASTM A536), and a variety of manhole covers, bolts, nuts, and check valves. Each entry references the appropriate HS‑code family for ductile‑iron products, indicating compliance with the standard tariff classifications used for cast‑iron pipework. The supplier’s top categories cover Agriculture, Flanges, Industrial Valves & Gauges, Iron and Steel Pipes, Pipe Valves, Nuts, and Manhole components, reflecting a focus on infrastructure‑related metal goods.

The product list also contains generic items such as Di Collar, Di Socket Spigot Tee With Socket Branch, Di Double Socket Level Invert Tee, and Di Air Valve, which are listed without HS codes but fall under the same material group of ductile iron. Across the 135 SKUs, the material specifications frequently cite ISO 1083 grades (e.g., GGG40, GJS 400‑15, GJS 500‑7) and ASTM A536 compositions, indicating that the items are manufactured to internationally recognised ductile‑iron standards. The inclusion of both pipe sections and fittings suggests the supplier can support complete pipeline systems from raw pipe to connection hardware.

Product Range and Specialties of Jilin Senfeng Pipe Co., Ltd.

The catalogue presents a core set of ductile‑iron pipe products such as K9 and K9/12 pipe grades, double‑flanged duck‑foot bends, and flexible couplings, all defined by HS codes 7303.00 for pipe sections and 7307.19/7307.99 for fittings and couplings. In the global market, ductile‑iron pipe is typically supplied in grades 400‑15, 500‑7 or higher, with wall thicknesses measured in millimetres and pressure ratings expressed in PN (e.g., PN 10, PN 16). Common specifications include a minimum tensile strength of 400 MPa, elongation of 8 % and corrosion‑resistant internal linings for water or sewage applications. Buyers also look for dimensions such as nominal diameter (DN) ranging from 80 mm to 1200 mm and lengths of 6 m or 12 m per standard shipping bundle.

Industry practice for ductile‑iron fittings includes compliance with ISO 1083 (Class GGG, GJS) and EN‑10217‑1 for pipe, while couplings often meet EN‑1092‑1 or ASTM A536. Typical product variants include flanged tees, socket‑spigot tees, duck‑foot bends, and check or butterfly valves, each requiring precise machining tolerances (±0.2 mm on bore diameter) and surface finishes (Ra ≤ 1.6 µm). The supplier’s inclusion of manhole covers and nuts aligns with standard municipal infrastructure kits, where cover dimensions are matched to pipe diameters and bolt grades conform to ISO 898‑1 (property class 8.8 or 10.9).

Trade and Export Information - Jilin Senfeng Pipe Co., Ltd.

China remains one of the world’s largest exporters of ductile‑iron pipe and fittings, with HS chapter 73 items shipped to construction markets in Southeast Asia, the Middle East, Africa and Eastern Europe. Buyers typically request compliance documents such as mill‑test reports, ISO 1083 certificates, and CE marking for products destined for the EU, while North‑American importers often require ASTM A536 test certificates and compliance with ASME B16.9 for flanged fittings. Standard export packaging involves steel‑framed pallets or wooden crates, with 20‑ft containers holding approximately 20 tons of pipe sections or 1 ton of heavy fittings, depending on geometry. Freight terms commonly use CIF or FOB, and customs clearance frequently involves verification of HS codes 7303.00, 7307.19 and 7307.99 against the commercial invoice.

Regulatory scrutiny in importing countries may include inspection under the EU REACH framework for heavy‑metal content and the US EPA’s Lead‑Free requirements for water‑service components. Exporters from China often hold ISO 9001 quality‑management certification, and buyers should confirm that the supplier’s production line follows the same standards before contract award.

Sourcing from Jilin Senfeng Pipe Co., Ltd. - Buyer Guidance

When sourcing ductile‑iron pipe or fittings from Jilin Senfeng Pipe, buyers should request the latest mill‑test report that confirms the material grade (e.g., GJS‑400‑15 or GJS‑500‑7), tensile strength, and chemical composition. A copy of the ISO 1083 compliance certificate and, where applicable, ASTM A536 test data should be verified to ensure the product meets the required pressure class and dimensional tolerances.

Buyers are advised to obtain a 3‑dimensional drawing or CAD file for custom‑shaped items such as duck‑foot bends, and to confirm the coating system (e.g., zinc galvanising, epoxy paint) if the product will be used in corrosive environments. Prior to full‑scale order, a sample of the coupling or valve should be inspected for surface finish, thread accuracy and functional operation, and a third‑party inspection report (e.g., SGS, BV) can be requested for added assurance.

What material standards apply to the ductile‑iron pipe listed by Jilin Senfeng Pipe?

The pipe and fittings are specified under ISO 1083 grades such as GGG40, GJS 400‑15 or GJS 500‑7, and they also meet ASTM A536 chemical composition limits for ductile iron.

Which HS codes cover the pipe sections and fittings?

Pipe sections are classified under HS 7303.00, while most flanged fittings and bends use HS 7307.19 and the flexible couplings fall under HS 7307.99.

What certifications should a buyer request before purchasing?

Buyers should ask for ISO 1083 material certificates, mill‑test reports, and, for EU destinations, CE conformity documentation. ISO 9001 quality‑management certification is commonly held by Chinese exporters and can be confirmed.

What are typical dimensions and pressure ratings for the K9 ductile‑iron pipe?

K9 pipe is normally supplied in nominal diameters from DN 80 to DN 1200, wall thicknesses ranging 4 mm to 30 mm, and pressure classes of PN 10 to PN 16, depending on the project specification.

How are the products packaged for overseas shipment?

Standard packaging uses steel‑framed pallets or wooden crates, with pipe sections loaded in bundles of 6 m lengths; a 20‑ft container can accommodate roughly 20 tons of pipe or 1 ton of heavy fittings.

What is the typical lead time for a bulk order of ductile‑iron fittings?

Lead time varies by order size but generally ranges from 30 to 45 days for standard grades, with longer periods for custom‑machined bends or special coating finishes.

Can samples be obtained for quality verification?

Yes, the supplier can provide sample units of couplings, valves or fittings; buyers should request a functional test report and dimensional inspection results with the sample.

Which markets commonly import these Chinese ductile‑iron products?

Major importers include construction and municipal sectors in Southeast Asia, the Middle East, Africa and Eastern Europe, where robust water‑distribution and sewage‑system infrastructure is being developed.