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1. What is Cold-rolled coil?
Cold-rolled coil is a steel product rolled thin from hot rolled steel coils, then through the stages of flattening, cleaning and rolling precisely to the required thickness. Structural characteristics:
- Steel grade: G300 – G550
- Surface: smooth, no impurities
- Common thickness: from 0.30mm to 0.50mm
- Width: 914mm – 1,200mm
- Coil or cut sheet form as required
2. Cold-rolled coil production process
- Step 1: Hot rolled steel is passed through a pickling line to remove rust on the surface, then cleaned and coated with a layer of oil to protect the surface. Hot rolled steel after being picked and oiled is called pickled and oiled steel (PO).
- Step 2: Pickled and oiled steel (PO) is passed through a cold rolling line to produce cold rolled steel products with required sizes. The products are manufactured according to strict processes to meet technical standards such as: ASTM A755 (USA), JIS G3322 (Japan), BS EN 10346 (Europe)
3. Advantages of cold-rolled coil
- Steel has high mechanical properties with standard hardness, high durability, and extremely good resistance to force and impact.
- The surface of the steel always reaches a smooth level and high gloss
- The steel has a very eye-catching bright color, low carbon content helps the steel to be more durable
- Cold-rolled coil has very good resistance to force and impact
- In addition, the edges of the steel are always trimmed neatly, sharp and not rough or wavy
4. Practical applications
- Semi-finished raw materials for the production of galvanized steel coils, cold-rolled steel or color-coated cold-rolled steel thanks to their high durability and good load-bearing properties
- Toolboxes, racks, lamps, stairs
- Metal furniture such as wardrobes, beds, aluminum frames for glass doors
- Manufacture of specialized construction machinery and equipment
- Construction frames for works ensure long-term durability and high quality
- Deep-drawn and deep-drawn machine parts
- Automotive and aircraft spare parts.
5. More information
Products are controlled by ISO 9001:2015 system. For further detail, please contact hotline 0906 687 917.
