What is the national standard for cold-drawn round steel?

The meaning of round steel is relatively simple, just like its literal meaning, it refers to solid, long and cross-sectional round steel. Round steel has three manufacturing processes, namely hot rolling, forging and cold drawing. Among them, cold drawing process is widely used in manufacturing industry. Cold-drawn round steel is a kind of multi-round steel. Because it is produced by cold-drawing process, the finished product is solid strip steel with circular cross section, so it is called cold-drawn round steel.

Specification and material parameters of cold-drawn round steel

Specification: Ф 3mm-Ф100mm

Material model:? Carbon steel, high-quality carbon steel, alloy steel, free-cutting steel, cold heading steel, etc. Q2 15？ Q235？ 35#? 45#? 20Cr？ 40Cr？ 20CrMo？ GCr 15

National standard for cold-drawn round steel

Implementation standard:? National standard GB/T3078-2008

Difference between cold-drawn round steel and round steel

Cold-drawn round steel is a kind of high-precision round steel, and its material can be directly used as shaft after tempering. 2. The corresponding ordinary round steel is the ordinary round steel used in our building. The heat treatment state is "normalized", and the dimensional accuracy and material quality are all ordinary. Both cold-drawn round steel and round steel are round in shape, but cold-drawn round steel has smooth surface, high dimensional accuracy and high mechanical properties. Because of its high dimensional accuracy, it can be used directly without processing.

Cold-drawn round steel manufacturer

Ningbo Ning Feng extrusion steel co., ltd

Ningbo Ning Feng Section Steel Co., Ltd. is located at the junction of Yinzhou and Fenghua Jiangkou Town, close to Yinfeng Highway, 34 provincial highway, with convenient transportation and fast transportation. Our company specializes in producing various specifications of cold-drawn special-shaped steel, cold-drawn round steel, hexagonal steel and flat square steel.

Renqiu zhenxing steel products co., ltd

Renqiu zhenxing steel products co., ltd? The company is located in Nanzhuang Industrial Zone, Lv Gong, Renqiu City, 20 kilometers away from 106 National Road and close to Jinbao Highway. It is a professional steel production and processing enterprise integrating hot rolling and cold drawing.

Foshan Shunde District Cheng Yi Industry Co., Ltd.

Cheng Yi Company specializes in producing all kinds of cold-drawn steel products, besides commonly used cold-drawn round steel, cold-drawn square steel, cold-drawn flat steel and cold-drawn hexagonal steel, it also develops and produces special-shaped cold-drawn steel products.

Cold drawing is to forcibly stretch the steel bar at room temperature to make the steel bar plastic into the shape we want. Cold-drawn round steel, sometimes called cold-drawn round steel, is widely used in various mechanical industries, such as motorcycles, bicycles, automobiles, hardware and other products we often use. Because cold-drawn round steel is widely used in industry, the state has standard regulations on its parameters.

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