Welcome to Shandong Charming Steel Co.,Ltd ！
Tel : 0086 18264535555 E-mail : cmgc@sdcmsteel.cn
The difference between cold rolled steel and hot rolled steel
Cold rolled steel is steel produced by cold rolling. Cold rolling is a steel sheet obtained by further thinning the No. 1 steel sheet to a target thickness under room temperature conditions. Compared with hot-rolled steel, cold-rolled steel has a more precise thickness, smooth and beautiful surface, and also has various superior mechanical properties, especially in terms of processability. Because cold-rolled raw coils are relatively brittle and hard, and are not suitable for processing, cold-rolled steel sheets are usually required to be annealed, pickled and surface smoothed before being delivered to customers.
The difference between cold-rolled steel and hot-rolled steel is not in the smelting process, but in the rolling temperature, or the end temperature of rolling. Cold-rolled steel is when the final rolling temperature is lower than the recrystallization temperature of the steel. Hot-rolled steel is easy to roll and has high rolling efficiency, but under hot-rolled conditions, the steel is oxidized, and the surface of the product is dark gray. Cold-rolled steel requires high rolling mill power and low rolling efficiency, and intermediate annealing is required to eliminate work hardening during the rolling process, so the cost is also high, but cold-rolled steel has a bright surface and good quality, and can be directly used for processing. The finished product, so cold-rolled steel sheet is widely used.
cold,rolled,steel,coil,from,China,manufacturer,cold,rolled,steel,coil,Wholesale,Price,Cheapest,cold,rolled,steel,coil
RELATED NEWS
Stainless steel plate plasma cutting process
Although stainless steel plates account for a relatively small proportion of world steel consumption, they are still vital to specific manufacturing industries such as the energy and food processing markets. At present, the global consumption of stainless steel plate materials is continuously increasing.
2020
11-11
Production process of welded steel pipe
The development of steel pipe production technology began with the rise of bicycle manufacturing, the development of petroleum in the early 19th century, the manufacture of ships, boilers, and aircraft during the two world wars, the manufacture of thermal power boilers after the Second World War, the development of the chemical industry, and The drilling and transportation of oil and natural gas have strongly promoted the development of the steel pipe industry in terms of variety, output and quality.
2020
11-11
Steel prices have risen by more than a thousand steel companies generally turn losses into profits
Since the first half of last year, steel prices have begun to recover thanks to a series of measures such as supply-side reforms and elimination of backward production capacity. Taking rebar as an example, the average price on March 9 last year was 2475 yuan/ton, and on March 9 this year, it has risen to 3852 yuan/ton, an increase of 35%.
2020
11-11
China Steel Association: Steel prices in the domestic market continued to rise slightly in September
According to data from the China Iron and Steel Association, in September, the domestic steel market demand was strong, and steel prices continued to rise. Affected by the rapid release of steel production capacity, pressure on the supply side has risen, and the price increase of steel has narrowed.
2020
11-11
ONLINE MESSAGE
Contact Us
Tel : 0086 18264535555
Email : cmgc@sdcmsteel.cn
WhatsApp：0086 18264535555
Add : Phoenix Industrial Park, Dongchangfu District, Liaocheng City, Shandong Province