Import Din Standard St37/St52 Seamless Pipe Carbon Stee — Buy in Bulk from Supplier in China

The DIN Standard ST37 and ST52 seamless carbon steel pipes supplied by Hebei New Sinda Pipes Manufacture Co., Ltd are manufactured to meet European structural and pressure-carrying requirements. These pipes are produced using both hot-rolled and cold-drawn processes, resulting in consistent wall thickness and dimensional accuracy. The ST37 grade offers a minimum yield strength of 235 MPa, while ST52 delivers a minimum yield of 355 MPa, suitable for load-bearing and high-pressure applications.

The pipes are typically supplied with a black painted finish for basic corrosion resistance during transport and storage. Material composition follows DIN 17175 standards, with carbon content between 0.17% and 0.25% for ST37 and up to 0.22% for ST52, alongside controlled manganese levels. Typical outer diameters range from 21.3 mm to 660 mm, with wall thicknesses from 2.8 mm to 40 mm, depending on the intended application. These dimensions align with standard industrial tolerances for seamless carbon steel tubing.

These pipes are commonly used in construction frameworks, oil and gas transmission lines, chemical processing plants, and mechanical engineering systems. Buyers include industrial contractors, pipeline installers, and heavy machinery manufacturers sourcing reliable, non-alloyed steel tubing. Trade terms are flexible for bulk orders, with packaging typically in bundles secured by steel straps. Lead time and incoterms require direct confirmation with the supplier, as these are not specified in the listing.

Hebei New Sinda Pipes Manufacture Co., Ltd is based in Gengzhuangzi Industrial Zone, Cangzhou, Hebei Province, China. The supplier is classified as an imported tier with harbor trust status, indicating verified export activity and logistical capacity. The listing does not specify years in operation, production volume, or client list, and no certifications are mentioned or implied.

The company specializes in seamless carbon steel pipes and focuses on industrial-grade supply chains. There is no indication of internal quality control labs, third-party inspections, or in-house testing equipment. Response metrics show no recorded communication history, suggesting buyers must initiate direct inquiry for technical or commercial details.