Cold Rolled Steel Coil Commonly used in the steel industry, different from hot-rolled coil. It refers to steel strip that is directly rolled to a certain thickness by rollers at room temperature and then rolled into a whole roll by a coiler. Compared with hot-rolled coil, cold-rolled coil has a brighter surface and higher finish, but it will produce more internal stress and is often annealed after cold rolling.
Since no heating is performed during the production process, there are no defects such as pitting and iron oxide scale that are common in hot rolling, and the surface quality is good and the finish is high. In addition, the dimensional accuracy of cold-rolled products is high, and the performance and organization of the products can meet some special use requirements, such as electromagnetic performance, deep drawing performance, etc.
| Commodity |
Cold rolled Steel Coil |
| Grade |
SPCC,SPCD,ST12,ST13,ST14,ST15,ST16,DC01,DC02,DC03,DC04,DC05,DC06 |
| DC03,DC04,DC05,DC06,DC07 |
| Standard |
ISO,JIS,ASTM,AS EN |
| Mechnical |
Commercial / Drawing / Deep Drawing /Extra Deep Drawing/Structural quality |
| Surface treatment |
Chromated and oiled, and ant-ifinger |
| Hardness |
Softy, half hard ,hard quality |
| Thickness |
0.12-4.0mm |
| Width |
1250MM-1500mm |
| Coil weight |
3-12MT/Coil or as your request |
| Packaging |
Export standard, seaworthy |
| ID |
508mm or 610mm |
| Trade Term |
FOB, CFR, CIF |
| Transport Type |
Container, bulk and train |
| Loading port |
Tianjin, Qingdao |
| Delivery time |
15-20 days after Deposit |
1. Hot rolled coils are made of continuous casting slabs or initial rolled slabs. They are heated in a step-beam heating furnace, descaled with high-pressure water, and then enter the rough rolling mill. The rough rolled material is cut and then enters the finishing mill for computer-controlled rolling. After the final rolling, it is cooled by laminar flow (cooling rate is controlled by computer) and coiled by a coiler to become a straight roll.
2. Cold Rolled Coils Different from hot-rolled coil, cold-rolled coil refers to the steel strip that is directly rolled to a certain thickness by rollers at room temperature and then rolled into a whole roll by a coiler. Compared with hot-rolled coil, cold-rolled coil has a brighter surface and higher finish, but it will produce more internal stress and is often annealed after cold rolling.
3. Galvanized coils are made by dipping thin steel sheets into a molten zinc bath to make a layer of zinc adhere to the surface of the thin steel sheet. It is mainly produced by continuous galvanizing process, that is, the rolled steel sheets are continuously dipped into a molten zinc bath to make galvanized steel sheets; alloyed galvanized steel sheets. This type of steel sheet is also made by hot dip method, but after leaving the bath, it is immediately heated to about 500ºC to form an alloy film of zinc and iron. This type of galvanized coil has good coating adhesion and weldability.
4.Color coated steel coil is a product made of hot-dip galvanized steel sheet, hot-dip aluminum-zinc steel sheet, electro-galvanized steel sheet, etc. After surface pretreatment (chemical degreasing and chemical conversion treatment), one or several layers of organic coating are applied on the surface, and then cured by baking. It is named after the colored steel coils coated with various colors of organic coatings, and is referred to as color coated steel coils.
SHANDONG BAOTAI METAL MATERIALS GROUP CO.,LTD was Located in Jinan, the capital of Shandong Province. Mainly engaged in stainless steel, carbon
steel, galvanized steel, PPGI, PPGL, copper, aluminum. Our team has focused on the steel industry for 15 years. The company has
established long-term close cooperative relations with well-known domestic steel companies. At the same time, the company's annual
spot reserve exceeds 1000,000 tons, so we can guarantee a short delivery time. Baotai Steel provides services for large
enterprises such as domestic government construction projects, Chinese listed companies, and state-owned enterprises. High-quality
products, low prices, and high-quality services are highly praised by customers. Customers from various countries have signed
agency agreements with Baotai Steel and become Baotai Steel's agents. Baotai Steel's service team is online 24 hours a day to
provide you with professional and high-quality services. At the same time, Baotai Steel also adheres to the concept of win-win,
customer-centric, and looks forward to becoming your trustworthy and high-quality enterprise.
Q1: What is your MOQ?
A: Usually our MOQ is one container, but it is different for some items, please contact us for details.
Q2:What is your terms of payment?
A:We usually accept T/T in advance, L/C for large sum.If you prefer other payments terms, please discuss.
Q3:What is your delivery time?
A:For products in stock, we can ship it within 7 days after receiving the deposit. For custom order, production time is 15-30 workdays after received the deposit.
Q4:How could you guarantee your products?
A:Mill Test Certification is supplied with shipment, We also accept and support the third-party inspection.We also could issue the warranty to customer to guarantee the quality.
Q5: Will all costs be clear?
A:Our quotation is easy to understand and will not incur any additional costs.
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