Shandong Baokun Metal Material Co. Ltd, a leader in advanced metal solutions, is proud to announce the global launch of its latest innovation: EN10305 1 Seamless Cold Drawn Tubes. Developed to meet the rigorous demands of precision engineering, these tubes are positioned to become the gold standard for manufacturers, engineers, and innovators seeking quality, reliability, and versatility in seamless tube solutions.

According to company spokesperson Ms Sun, “At Baokun, we believe in pushing the boundaries of what’s possible in materials engineering. Our EN10305 1 seamless cold drawn tubes set a new industry benchmark, combining impeccable metallurgy with exacting tolerances and an unsurpassed surface finish. Whether for automotive, hydraulics, precision machinery, or aerospace, our tubes empower customers to design and build with absolute confidence.”

What Are EN10305 1 Seamless Cold Drawn Tubes?

EN10305 1 refers to the European standard governing cold drawn seamless precision steel tubes. These tubes are renowned for their dimensional accuracy, smooth internal and external surfaces, and excellent mechanical properties. Compared to standard welded or hot-finished tubes, EN10305 1 seamless cold drawn tubes offer superior performance where demanding tolerances and a perfect surface finish are essential.

From their application in hydraulic systems, fuel injection lines, and structural elements to uses in control devices, medical technology, and high-speed automation, the need for such high-precision tubing is growing rapidly. Baokun’s release of EN10305 1 seamless cold drawn tubes reflects both current industry requirements and the ongoing transformation of global engineering best practices.

Unmatched Manufacturing Excellence

Materials and Methods
The production of EN10305 1 seamless cold drawn tubes at Shandong Baokun Metal Material Co. Ltd leverages the highest standards in raw material sourcing, metallurgy, and manufacturing process control.

1.Premium Steel Selection
Only carefully selected low carbon and alloy steel grades that comply with EN standards are used, ensuring the base metal is consistent, free of inclusions, and suitable for cold working.

2.Seamless Tube Formation
Unlike welded tube, the seamless method begins with a solid billet that is heated, pierced, then elongated into a tube through controlled rolling. This forms the essential base shape, eliminating concerns about weld seams and defects.

3.Cold Drawing Process
The distinguishing feature of EN10305 1 seamless cold drawn tubes is the cold working step: the tubes are drawn through dies at room temperature. This process:

-Greatly improves dimensional tolerance (typically h8 or better)
-Enhances mechanical properties, including tensile and yield strength
-Provides outstanding straightness, concentricity, and surface finish—often achieving Ra levels