FAQs (Frequently Asked Questions)_News Center Co., Ltd._Jiangsu Beitong Cold Drawn Steel Technology Co., Ltd._Zhongshang 114 Industry Resources Network

What are the defects of cold drawn flat steel?

Cold drawn flat steel is a shaped material processed through the cold stretching process. Its defects mainly originate from factors such as raw material quality, cold working process parameters, mold condition, and equipment accuracy. The types of defects can be divided into three major categorie...

What are common surface defects in extruded steel?

Surface defects on special-shaped steel (including non-rectangular/circular cross-section shapes produced by processes such as cold drawing, hot rolling, and extrusion, such as angle iron, channel iron, I-beam, special-shaped flat steel, and complex cross-section shapes) are strongly correlated w...

How to Reduce Oxide Scale and Rust on the Surface of Special Steel?

The surface oxidation and rust of special-shaped steel are primarily caused by the reaction between the metal and oxygen and moisture. Due to the complex cross-section of special-shaped steel (with many grooves, angles, and welds), it is prone to residual oxidation scales and moisture accumulatio...

How to Resolve Internal Structure Defects in Cold Drawn Square Steel?

Internal defects in cold drawn square steel, such as coarse and uneven grain structure, excessive residual stress, abnormal fibrous structure, inclusions, and segregation, are primarily caused by unreasonable cold drawing deformation, improper heat treatment processes, and substandard raw materia...