St37 S45c St52 Ss400 S355j2 Q195 Q235 Q345b 65mn Black Hot Cold Rolled Cold Drawn Carbon Steel Coil

• Customization: Available
• After-sales Service: Cold Rolled Steel Coil Endless Service
• Warranty: According to The Use Environment
• Certification: ISO, RoHS, IBR
• Surface Treatment: Leveling
• Technique: Hot Rolled
• Application: Boiler Plate
• Edge: Slit edge
• Stock: Stock
• Material: C10/C45e4/1008/1020/1016/1572
• Thickness: 1mm-30mm
• Width: 10mm-3000mm
• Roll Weight: 0.5t-25t
• Custom Made: Yes
• Custom Cycle: 7-15 Days
• Transport Package: Export Standard Package/as Request
• Specification: According to customer requirements
• Trademark: zhengde
• Origin: China
• HS Code: 7208250000
• Production Capacity: 80000 Tons/Month

Product Description

Product Description

1. Cold-rolled coil products have accurate size, uniform thickness, and the thickness difference of coil generally does not exceed 0.01-0.03 mm, which can meet the requirements of high-precision tolerance.
2.It Extremely thin strips (up to 0.001 mm or less) that cannot be produced by hot rolling can be obtained.
3. Cold-rolled products have superior surface quality, no pitting corrosion, hot-pressed iron oxide,
 etc., commonly found in hot-rolled coils, can produce coils with different surface roughness (gloss or hemp).
 According to user requirements. The rough surface is convenient for processing in the next process.
4. Cold-rolled plate has good mechanical properties and process properties (such as high strength, low yield limit, good deep drawing, etc.).
5. It can realize high-speed rolling and fully continuous rolling, with high productivity.

Technical Standards for cold rolled steel coil
grade	Zhengde enterprise standard		Comparable to foreign standards		illustrate
	Standard	Grade	Standard	Grade
general use	Q/BQB403 Q/BQB402	St12 SPCC	DIN1623JISG3141	St12 SPCC	For general forming processing such as refrigerators and other home appliance shells, oil barrels, and steel furniture.
stamping grade	Q/BQB403 Q/BQB402	St13 SPCD	DIN1623JISG3141	St13 SPCD	Steel for stamping and forming processes such as automobiles, home appliances, and construction.
Deep drawing	Q/BQB403 Q/BQB402	St14, (F, HF, ZF)SPCE (F, HF, ZF)	DIN1623JISG3141	St13 SPCE	Automobile headlights, fuel tanks, car doors, windows and other steels for deep drawing and forming.
Steel for extra deep drawing	Q/BQB403	St15 St14T			Car headlights, complex underbody panels, oil pans.
hard steel	Q/BQB402	SPCC4D SPCC8D SPCC1D	JISG3141	1/4 hard1/8hard	Steel for bicycle rims and steel for stationery.
structural steel	Q/BQB410 BZJ410	St37-2G St44-3G St52-3G	DIN1623	St37-2G St44-3G St52-3G	Buildings, car bodies, brackets.
Atmospheric resistant steel	BZJ441	B440NQ B450NQ B460NQ B500NQ			Automobile, train car outer panels, container panels, doors and windows, cold-formed steel and other components.
Steel for TV	Q/BQB470	SPCCK, St12CK SPCCCE SECCCD St50CB BCK-1			Color picture tube shadow mask frame, color picture tube earrings, color picture tube explosion-proof plate with galvanized steel strip, color picture tube explosion-proof steel, color picture tube frame.
steel for car wheels	BZJ412	B320LW B360LW			Steel for automotive wheel rims.

Our Advantages

High precision
Compared to hot-rolled steel plates, cold-rolled steel coils have more precise thickness, smooth and beautiful surfaces, and also possess various superior mechanical properties, especially in terms of processing performance. Due to the brittleness and hardness of the cold rolled coil, it is not suitable for processing. Therefore, in general, cold rolled steel plates require annealing, pickling, and surface leveling before being handed over to the customer.

Extensive use
Cold rolled steel coil, with a smooth surface and excellent processing, is used in household appliances such as automobiles, refrigerators, washing machines, as well as industrial equipment and various building materials. With the development of the economy, cold rolled steel plates have become a necessary material in modern society. Among them, cold rolled hard coils can be used as raw materials for hot dip galvanizing plants, as hot dip galvanizing units are equipped with annealing lines. The weight of the rolled hard coil is generally between 8-23 tons.

Strict craftsmanship
Cold rolled steel coils generally use hot-rolled strip steel with a thickness of 1.5-6 mm as the cold rolled billet. The main processes include pickling, cold rolling, degreasing, annealing, leveling, and shearing (cross cutting, longitudinal cutting). If producing coated plates, there are also plating or coating processes such as electroplating tin, hot tin coating, and hot zinc coating. The production process of cold rolled billets is as follows: hot rolled sheet coils (raw materials) - acid washing - cold rolling - degreasing - annealing - leveling - shearing - finished product delivery.

Provide deep processing
The company's slitting machine, slitting line, cuts cold rolled steel coils into strips of various widths as needed, and then folds the strips into small coils for use in the next process. It is a necessary equipment for precision cutting of transformers, motor industries, and other metal strips. It is mainly used for strip cutting of materials such as tinplate, galvanized iron, silicon steel sheet, cold rolled strip, stainless steel strip, aluminum strip, steel strip, and other coils.

Quality first: production and inspection in strict accordance with production standards;
Price advantage: discounts based on real market prices;
Transaction security: There will be no loss of customer funds;
After-sales guarantee: the customer's problem is our problem;
Long-term cooperation: quality assurance, price advantage, sincere service can last for a long time.

Detailed Photos

Packaging & Shipping

Company Profile

Shandong Zhengde Metal Manufacturing Co., Ltd. is a production and sales company integrating hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, section steel, steel pipes, steel wires, metal mesh, stainless steel, aluminum, copper and other metal products integrated large enterprises. Five production and sales bases have been formed in Binzhou, Liaocheng, Wuxi, Tianjin, Jinan and Tai'an, with more than 100 production lines, 4 nationally recognized laboratories, 2 technical engineering centers, and 5 enterprise technology centers. Products are exported to more than 50 countries and regions such as North America, South America, Europe, Africa, Oceania, Middle East, and Southeast Asia.

Certifications