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Cold rolled steel is hot-rolled steel that has been cleaned of iron oxide scale (pickled) and reduced to a specific thickness through a series of rolling stands (tandem mill) or passed back and forth through a reversing rolling mill. The steel can be heated to controlled temperatures (annealing) depending on mechanical property requirements, and final rolled to the desired thickness.
This produces steel with precision dimensional tolerances and a wide range of controlled surface finishes. Use Cold-rolled steel where thickness tolerance, surface condition, and uniform mechanical properties are of the utmost importance.
ZhengDe Metal offers a wide range of cold rolled specialty alloy, high carbon, low carbon, and high strength low alloy (HSLA) precision tolerance strip steel.
Looking for a cost-effective and readily available alternative to cold-rolled steel? ZhengDe Metal is a great option for many of our customers!
We will be glad to help you select the exact grade for your Cold Rolled Steel Sheet & Coil.
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
FAQ:
1. Are you a trading company or a factory? A: We are a direct factory with more than 30 years of production experience, a professional technical team, production team, overseas sales team, can solve various problems for you
2 .What's your advantage? A: Great products with competitive price and professional service on export business.
3. How I believe you? A : We consider honesty as the core of our company, we can tell you the contact information of our some other clients for you to check our credit. Besides, there is trade assurance from , your order and money will be well guaranteed.
4.Can you give warranty of your products? A: Yes, we extend a 100% satisfaction guarantee on all items. Please feel free to feedback immediately if you are not pleased with our quality or service.
5.Where are you? Can I visit you? A: Sure,welcome to you visit our factory at any time.
6.How about the delivery time? A: We have multiple warehouses, some products are in stock, and we can ship them to you immediately! Other products that need to be produced will be produced within 10-15 days at the earliest according to your requirements; large orders will be produced according to the specific situation.
7.what kind of payment does your company support? A: T/T, 100% L/C at sight, Cash, Western Union are all accepted if you have other payment,please contact me.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
1997
Total Annual:
500000000-600000000
Employee Number:
1500~1800
Ecer Certification：
Verified Supplier
Shandong Zhengde Metal Manufacturing Co., Ltd. is a company integrating hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, steel sections, steel pipes, heat exchange pipes, automobile exhaust pipes, anchor rods, steel wires, metal mesh, A large compreh... Shandong Zhengde Metal Manufacturing Co., Ltd. is a company integrating hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, steel sections, steel pipes, heat exchange pipes, automobile exhaust pipes, anchor rods, steel wires, metal mesh, A large compreh...
