2016年1月14日星期四

What is cold rolled steel?

Cold rolled steel is the production of steel under cold rolling. Cold rolled steel is using No.1 steel plate to further rolled to the target thickness at room temperature. Compared with hot rolled steel plate, the thickness of the cold rolled steel plate is more accurate, and the surface is more smooth and beautiful. At the same time, cold rolled steel has variety of excellent mechanical properties, especially the processing performance. Because cold rolled raw rolls are more brittle and is not suitable for processing, so before handing over to the customer cold rolled steel sheet is usually required with annealing, pickling and surface flatness. The maximum thickness of cold rolling is below 0.1--8.0MM, the minimum thickness and width are determined by the equipment capacity and market demand .

The classification of cold rolled steel products: hot rolled pickling, rolling hard roll, cold-rolled, galvanized, electric galvanized, fingerprint resistant, hot galvanized), galvanized, tin plating, and painted, electrical steel (silicon steel sheet) and so on.
Cold rolled steel is widely used, such as automobile manufacturing, electrical products, locomotive, rolling stock, aviation, precision instruments, food cans, etc. With the development of economy, cold rolled steel plate has been called the material of the modern society.



The difference between cold rolled steel and hot rolled steel is not the smelting process, but the rolling temperature, or the ending temperature of rolling mill. Hot rolled steel is easy to rolling with high efficiency of rolling, but because the oxidation of steel in hot rolling condition, the surface of hot rolled steel is black and gray. Cold rolled steel requires high power but low rolling efficiency. In order to eliminate work hardening ,cold rolled steel will need intermediate annealing, so the cost is higher, but the surface of cold rolled steel will be lighted in better quality. It can be directly used to process finished products, so the application of cold rolled steel plate is very wide.

2015年11月10日星期二

Stainless steel coil

Specifications

1. Standard:  ASTM A240, JIS G4304, G4305, GB/T 4237, GB/T 8165, BS 1449, DIN17460, DIN 17441

2. Grade: 200series&300series&400series

3. Thickness: 0.23mm-0.8mm

4. Diameter: 115-560mm

5. Length: according buyer require

6. Surface finish:  2B, BA, 8K, 6K, Mirror Finished, No1, No2, No4, Hair Line with PVC

7. Manufacture technology: cold drawn/cold rolled/hot rolled




















We are stainless steel supplier located in China. Welcome come to visit our website : http://seller.okorder.com/ .


If you are interested in any of our products, please feel free to contact us for information
We can supply you resonable and competitive price and good quality products

Contact us:

Email: helenliu@okorder.com
Whatsapp: +8613557710873

Galvanized steel coil

Specifications:

Thickness: 0.13mm TCT up to 4.0mm TCT.
Width: 600mm up to 1250mm.
Zinc Coating: 40-275G/M2.
Chromated, Dry, Skin-passed, Tension Level, Shining. Oiled or Unoiled.
Regular Spangle, minimum Spangle, Large Spangle, Zero Spangle.
Temper: Full Hard (85-95 HRB; G550). Commercial Quality (50-75 HRB; G350).
Coil Weight: 3-6 MT.
Coil ID: 508mm or 610mm.
Shipment: By Bulk or By 20GP Container.
Waterproof Standard Export Packing.
Payment Terms: by T/T or L/C at Sight.
Delivery: 15 Days.





















Contact us:
Email: helenliu@okorder.com 
Web:www.okorder.com

Hot rolled steel coil

Product Name: Hot Rolled Steel Coil

Thickness: 1.2-19mm

Width: 900-1630mm

Length: Steel coil or According to requirements

Standard: JIS G3131

Application: Construction Pipe making























Our Advantage: 

Reasonable price

Professionalism of the products

On-time delivery

Complete documents and certificates

Sincere service to meet our clients' requirements