We specialize in flat steel, round steel, square steel, h...
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...
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...
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...
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...
Cold drawn round steel is processed through the cold drawing process (stretching, straightening, and finishing at room temperature) to produce round-section steel. Its core advantages include high dimensional accuracy (small tolerances), good surface finish, and higher mechanical strength (tensil...
Hexagonal steel (including hot-rolled hexagonal steel and cold-drawn hexagonal steel, characterized by its hexagonal cross-section and excellent grip, positioning, and torque transmission capabilities) finds its applications centered around its "structural properties" — unlike round steel, ...
The core advantage of special-shaped steel lies in its "customized cross-section shapes based on application scenarios"—compared to standard materials like round or square bars, it can more accurately meet the needs for "load optimization, spatial adaptation, and functional integration." As...
The core of material selection for special-shaped steel revolves around "performance needs of the application scenarios" (such as strength, corrosion resistance, low-temperature toughness, workability, etc.). The mainstream materials cover carbon steel, alloy steel, stainless steel, and non-ferro...
The dimensional accuracy defects of cold drawn flat steel primarily concentrate in four core dimensions: cross-sectional size, shape regularity, length, and straightness, which directly affect assembly compatibility, load uniformity, and performance. Specific categories and details are as follows...
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