Common Pipeline Questions

A2: Delivery typically takes 3-30 days, depending on the order quantity.

A3: We accept T/T, Western Union, Money Gram, PayPal,  and most major payment methods.

A4: We prioritize product quality above all, never compromising standards to cut costs. We treat every client with fairness and ensure you receive exceptional value. Price is not the deciding factor in our partnerships; our focus is on delivering outstanding quality and service.

A5: Our products are backed by authoritative testing reports and adhere to strict manufacturing processes. Our quality control team conducts multiple random inspections daily, ensuring consistent and reliable product quality.

A6: Unlike generic sales teams, our representatives are highly trained in product knowledge and regularly visit factories for hands-on experience. We respond to your inquiries with professionalism and precision, empowering you to make confident decisions.

A7: For orders under $5,000, full payment is required upfront. Orders over $5,000 require 70% prepayment with the remaining 30% due prior to shipment.

A8: Yes, we offer free samples, but you are responsible for covering the shipping costs.

A9: We support mainstream shipping terms, including EXW, FOB , CIF, DDP.

A10: We mainly produce straight seam welded pipes that meet standards such as API 5L (Line Pipe), ASTM A53/A500, EN 10219, and EN 10210, with materials including Gr.B, X42-X70, S235JR, and S355JR.

A11: For in-stock specifications, we do not have a strict minimum order quantity; for custom production, the minimum order quantity is usually 5-10 tons (depending on the specific specifications). We support sample orders for quality testing.

A12: Each pipe undergoes a hydrostatic test. In addition, we can provide ultrasonic testing (UT), radiographic testing (RT), and mechanical property tests such as tensile/impact testing, upon customer request.

A13: Yes, all the steel pipes we supply come with an MTC that conforms to EN 10204 3.1, which records the chemical composition and mechanical properties.

A14: Hydraulic connection is the fastest to install and is suitable for conventional projects; threaded connection offers the strongest and best sealing performance and is recommended for use on piles deeper than 40 meters.

A15: We offer anti-corrosion treatments such as bare pipe, black paint, hot-dip galvanizing (HDG), 3PE, FBE (epoxy powder), and cement mortar lining.

A16: Inventory products are typically shipped within 7-10 days; customized orders usually take between 20-30 days, depending on the quantity and production schedule.

A17: Yes. In addition to the standard 5.8m, 6m, 11.8m, and 12m sizes, we offer precision cutting services to meet your specific project size requirements.

A18: By default, thin-walled pipes have plain ends, while thick-walled pipes (such as conduits) usually have 30° beveled ends for easy on-site welding. Plastic caps can also be added upon request.

A19: Absolutely. We welcome customers to commission SGS, BV, TUV, or other third-party organizations to inspect the factory and products before shipment.

A20: We employ multiple protective measures: Surface: Coated with anti-corrosion paint or rust-preventive oil. Pipe Ends: Equipped with plastic caps to prevent thread damage or foreign object ingress. Strapping: Secured with high-strength steel strapping, and padded with thickened nylon or wooden blocks at contact points to prevent impact damage. Containers: For bulk cargo transport, thickened woven fabric packaging is provided.

A21: Yes, we offer one-stop machining services, including: Machining: Precision cutting, beveling, drilling, and threading. Welding: Welding flanges, couplings, or steel plates. Bending: Cold or hot bending according to drawings.

A22: Our production strictly adheres to standard requirements (such as API 5L or ASTM). Typically, outer diameter tolerances are controlled within ±1%, and wall thickness tolerances within ±10% (or more precisely, depending on the specific specifications). If your project requires extremely high precision, please inform us in advance, and we can implement specialized control measures.