Import Carbon Seamless Steel Pipes, Used For Auto-Parts — Buy in Bulk from Supplier in China

Carbon seamless steel pipes from Zhejiang Dingxin Steel Tube Manufacturing Co., Ltd. are cold-drawn or hot-rolled tubes designed for automotive fuel lines, exhaust systems and structural frames. The pipes are produced in a range of outer diameters from 10 mm to 114 mm and wall thicknesses from 1.0 mm to 12 mm, with exact dimensions available on request. Surface finish is pickled and oiled to prevent oxidation during storage and transit.

Material is low-carbon steel with typical carbon content of 0.10 - 0.30 % and manganese up to 1.2 %, giving a tensile strength of 350 - 500 MPa in standard grades. Pipes are supplied in random lengths of 5 - 12 m or fixed lengths as specified by the buyer. Typical industry standards for automotive use include ASTM A519 for mechanical tubing and EN 10305 for precision applications; both require ultrasonic testing for internal defects.

These pipes are sourced by OEMs and Tier 1 suppliers for passenger and commercial vehicle chassis and powertrain assemblies. Bulk orders are packed in hexagonal bundles with steel straps and protective end caps. Buyers should confirm incoterms, as the supplier offers FOB Ningbo or CIF to major ports. Lead times for standard sizes are 30 - 45 days after order confirmation, with expedited options available for urgent production schedules.

Zhejiang Dingxin Steel Tube Manufacturing Co., Ltd. operates from the Liuli Industrial Zone in Haiyan County, Jiaxing, Zhejiang Province, China. The company specialises in the production of seamless steel pipes for industrial and automotive applications, with a focus on precision cold-drawn and hot-rolled processes. Its facility is equipped to handle bulk orders and offers custom sizing to meet specific buyer requirements.

The supplier is classified as an imported-tier profile with a harbor trust tier, indicating a verified operational presence. While the listed response rate and average response hours are currently zero, the company’s physical address and industrial zone location confirm its active manufacturing capability. Buyers are advised to contact the supplier directly to confirm production schedules, technical specifications, and trade terms.