Email Us

Cold-rolled Steel

Cold-rolled steel refers to steel produced through cold rolling. Cold rolling is the process of further rolling No.1 steel plate to the target thickness at room temperature. Compared with hot-rolled steel plates, cold-rolled steel plates are more precise in thickness, have a smooth and beautiful surface, and have various superior mechanical properties, especially in processing performance. Since the cold-rolled coil is relatively hard and brittle and not suitable for processing, cold-rolled steel plates usually require annealing, pickling, and surface leveling before being delivered to customers. The maximum thickness of cold rolling is below 0.1-8.0MM, and most factories have a thickness of 4.5MM or less. The minimum thickness and width are determined according to the equipment capabilities and market demands of each factory.


drumclosure-20230609-4-1.jpg

Processing method


Using hot-rolled steel coils as raw materials, cold continuous rolling is carried out after pickling to remove oxide scale, and the finished product is a hardened roll. Due to the cold work hardening caused by continuous cold deformation, the strength and hardness of the hardened roll increase, while the toughness and plasticity index decrease, so the stamping performance will deteriorate and can only be used for simple deformation parts. Hardened rolls can be used as raw materials for hot-dip galvanizing plants, as all hot-dip galvanizing units are equipped with annealing lines. The weight of the hardened roll is generally between 6-13.5 tons, and the steel coil is continuously rolled at room temperature for hot-rolled pickled coils.


Properties


Cold-rolled steel has high strength, but poor toughness and weldability, and is relatively hard and brittle with a bright surface.


Application


Cold-rolled steel coils are widely used in automobile manufacturing, electrical appliances, locomotives, aircraft, precision instruments, canned food, and many other applications. Cold-rolled steel plates are commonly referred to as cold-rolled carbon structural steel plates, also known as cold-rolled plates, generally referred to as cold plates, and sometimes mistakenly written as cold dishes. Cold plate is a hot-rolled steel plate of ordinary carbon structural steel, which is made into a thickness of less than 4 millimeters by further cold rolling. Since no oxidized iron plate is produced during room temperature rolling, the surface quality and dimensional accuracy of cold plates are good. With annealing treatment, the mechanical properties and process performance are better than hot-rolled steel plates. In many fields, especially in the household appliance manufacturing industry, cold plates have gradually replaced hot-rolled steel plates.

Popular Drum Barrel Fittings

Related Drum Accessories and Fittings News & Blog

  • Matters Needing Attention In The Use Of Iron DrumsMatters Needing Attention In The Use Of Iron DrumsJuly 4, 2022While making great efforts to innovate, iron drum manufacturers have also discovered many incorrect operation methods, which are not conducive to the long-term use of iron products. Let’s take a look...view
  • Research Progress Of Surface Treatment Technology Of Steel Drums Before PaintingResearch Progress Of Surface Treatment Technology Of Steel Drums Before PaintingJuly 1, 2022Metal packaging barrels are mainly used in the chemical, petroleum and coating industries, of which the petroleum and chemical industries account for more than 90%. The annual output of metal barrels ...view
  • Orange Peel, The Painting Problem Of DrumsOrange Peel, The Painting Problem Of DrumsJuly 1, 2022Orange peelThe uneven appearance of the paint coating, which resembles the peel of an orange or walnut, is called orange peel.The reasons are as follows:1) The construction viscosity is too high and t...view
  • 10 Questions About Waterborne Paint?10 Questions About Waterborne Paint?July 1, 20221. What is the adhesion of water-based paint?Adhesion is better than oil paint (not including inferior water-based paint), dry quickly at room temperature, and has excellent rust resistance, corrosion...view
  • What Are the Recommended Colors for Steel Drum in Global Market?What Are the Recommended Colors for Steel Drum in Global Market?January 3, 2023The latest recommended color standard for steel drums issued by the International Steel Drum Organization, among which the ICDM steel drum color standard has been affirmed by many parties and recommen...view
  • Metal Waterproof Cap SealMetal Waterproof Cap SealJanuary 6, 2024Metal waterproof cap seal is a sealing cap commonly used to protect cosmetics, food, drugs, and other easily contaminated products. It has excellent waterproof and sealing performance, effectively pre...view
Tel
86-18768445568
Address
No.58 Qinjian Road, Hengshan Industrial Park, Shouchang Town, Jiande City, Zhejiang Province, China