Product Description
![Factory Direct 0.125-4.0mm Galvanized Sheet/Coil Ss250 Ss275 Cold Rolled Steel Coil](http://img.everychina.com/nimg/6e/57/a43d7cf221475c51c2d8a38d4648.jpg)
Zhengde Cold rolled steel coil is made from hot-rolled steel coil
as raw material, which is subjected to acid washing to remove oxide
skin and then subjected to cold continuous rolling. The finished
product is rolled hard coil. Due to the cold work hardening caused
by continuous cold deformation, the strength and hardness of the
rolled hard coil increase, and the toughness and plasticity index
decrease. Deep processing requires annealing treatment.
Due to the lack of heating during the production process of cold
rolled steel coils, there are no defects such as pits and oxide
scales that often occur during hot rolling. The surface quality is
good and the smoothness is high. Moreover, the dimensional accuracy
of cold rolled steel coils is high, and the performance and
structure of the products can meet some special usage requirements,
such as electromagnetic performance, deep drawing performance, etc.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
![Factory Direct 0.125-4.0mm Galvanized Sheet/Coil Ss250 Ss275 Cold Rolled Steel Coil](http://img.everychina.com/nimg/a3/e5/999e9c7dfc1c81a9ba88507d5ef1.jpg)
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
![Factory Direct 0.125-4.0mm Galvanized Sheet/Coil Ss250 Ss275 Cold Rolled Steel Coil](http://img.everychina.com/nimg/ca/c4/bf0181cf589578c87a661320e058.jpg)
![Factory Direct 0.125-4.0mm Galvanized Sheet/Coil Ss250 Ss275 Cold Rolled Steel Coil](http://img.everychina.com/nimg/f0/ff/5b1c724a02815950682f1b5977f8.jpg)
Packaging & Shipping
![Factory Direct 0.125-4.0mm Galvanized Sheet/Coil Ss250 Ss275 Cold Rolled Steel Coil](http://img.everychina.com/nimg/03/6c/a14bdb262c0112f80e057ba004ec.jpg)
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.
![Factory Direct 0.125-4.0mm Galvanized Sheet/Coil Ss250 Ss275 Cold Rolled Steel Coil](http://img.everychina.com/nimg/a6/8d/b0876be4f9cdd3df2bf245b501f4.jpg)
Certifications
![Factory Direct 0.125-4.0mm Galvanized Sheet/Coil Ss250 Ss275 Cold Rolled Steel Coil](http://img.everychina.com/nimg/8d/7c/97db6d948d2eb5478a49ede36f96.jpg)