• Cold Rolled Steel Coils-DC03 with  High Quality System 1
  • Cold Rolled Steel Coils-DC03 with  High Quality System 2
  • Cold Rolled Steel Coils-DC03 with  High Quality System 3
Cold Rolled Steel Coils-DC03 with  High Quality

Cold Rolled Steel Coils-DC03 with High Quality

Ref Price:
$340.00 - 500.00 / m.t. get latest price
Loading Port:
China main port
Payment Terms:
TT or LC
Min Order Qty:
50 m.t.
Supply Capability:
10000 m.t./month

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Cold Rolled Steel Coils-DC03 with  High Quality

Brief Introduction

Cold Rolled Steel is steel thathas been worked below its recrystallization temperature by passing it between apair of rollers. Recrystallization temperature is the temperature at whichgrains in the lattice structure of the metal have been rearranged, leaving it freeof strain and deformations. Cold Rolled Steel is pre-treated before being coldrolled with a process known as pickling, which uses strong acids to removescale and other impurities. The Cold Rolled Steel is then passed throughrollers to reduce its thickness. Most cold rolling takes place in multiplepasses and as the size of the Cold Rolled Steel is further reduced, itsstrength and hardness both increase, but its ductility decreases. After coldrolling, heating the metal up in a process known as annealing can restore someof its ductility. The final Cold Rolled Steel may be manufactured in the formof sheets, strips, bars, or other forms.

 

Application

It’s widely used in outdoor andinterior decoration, furnishing manufacturing, home appliance, automobile etc.

 

Main Specification

COLD  ROLLED STEEL

THICKNESS

0.2-2MM

WIDTH

600-1250MM

SHEET  LENGTH

0-6000MM

COIL ID

508MM OR  610MM

SURFACE  TREATMENT

MATT  FINISH/BRIGHT FINISH, OILED/DRY

ANNEALING  METHODS

BRIGHT  ANNEAL/BLACK ANNEAL

COIL  WEIGHT

1-12MT

 

Advantage

1. High Quality SurfaceFinish

2. High Dimensional Precision

3. Excellent mechanicalproperty

 

 FAQ 

1.How to guarantee the quality of the products

We have established the international advanced quality management systemevery link from raw material to final product we have strict quality testWe resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.

2. How long can we receive the product after purchase?

Usually within thirty working days after receiving buyer’s advance payment or LC. We will arrange the factory manufacturing as soon as possible. The cargo readiness usually takes 15-25 days, but the shipment will depend on the vessel situation.

Q:What are the different methods of corrosion protection for steel coils?
There are several different methods of corrosion protection for steel coils, each with its own advantages and disadvantages. 1. Coating: One of the most common methods is to apply a protective coating to the steel coils. This can be done through a variety of techniques such as hot-dip galvanizing, electroplating, or painting. Coatings provide a barrier between the steel surface and the corrosive environment, preventing direct contact and thus reducing the risk of corrosion. 2. VCI (Vapor Corrosion Inhibitor): Another method is the use of VCI materials, which release chemicals that inhibit corrosion when in contact with the steel surface. These materials can be applied as coatings, films, or papers, and are particularly useful for long-term storage or shipping of steel coils. 3. Cathodic Protection: This method involves the use of sacrificial anodes or impressed currents to protect the steel coils. Sacrificial anodes, typically made of zinc or aluminum, are connected to the steel surface. These anodes corrode instead of the steel, sacrificing themselves to protect the coils. Impressed current systems use a direct electrical current to prevent corrosion on the steel surface. 4. Wrapping and Packaging: Proper wrapping and packaging of steel coils can also provide corrosion protection. This includes using moisture barrier films, desiccants, or absorbent materials to reduce the moisture content around the coils. Additionally, ensuring adequate ventilation and avoiding contact with other corrosive substances can help prevent corrosion. 5. Environmental Control: Controlling the environment in which the steel coils are stored or used is crucial for corrosion protection. This may involve maintaining proper humidity levels, controlling temperature, and managing air quality. By minimizing exposure to corrosive elements such as moisture, salts, or chemicals, the risk of corrosion can be significantly reduced. It is important to note that the choice of corrosion protection method depends on various factors such as the specific application, budget constraints, and desired lifespan of the steel coils. A combination of these methods may also be used to provide enhanced protection against corrosion.
Q:How would you calculate the maximum plastic deformation (expansion) a steel pipe can handle before it actually fails?
You can calculate the maximum reversible strain, for elastic loading as follows: You need to look up the yield strength (for that particular type of steel). Divide this yield strength by the elastic modulus of steel (also called Young's modulus). That gives you the strain at the onset of yielding, the maximum you can strain the steel fibers before crossing the point of no return. If you are interested in the strain until failure, you need to take tensile test measurements. Seldom do people document an equation to model the non-elastic portion of the stress-strain curve of the specimen, because seldom do we design systems to operate with materials which yield. We want systems which only deform reversibly and elastically. This means you need to perform an experiment to find what you are actually desiring to know.
Q:What are the typical coil thickness options?
The typical coil thickness options vary depending on the specific application and industry. However, common coil thickness options range from 0.005 inches to 0.250 inches (0.127mm to 6.35mm), with various intermediate thicknesses available.
Q:We are going to build a house with a steel frame.Someone told me today that these houses have problems with humidity.Is that true?Please tell me all you know..
the building I work in is steel framed, no humidity problems. I can't believe that steel frame anything causes humidity problems. I would ask for an explanation from whom ever told you this. One thing is cell phones, radios etc. have bad reception due to all the interference.
Q:Can steel coils be galvanized?
Yes, steel coils can be galvanized. Galvanizing is a process of applying a protective zinc coating to steel to prevent corrosion and increase its durability. Steel coils are commonly galvanized to enhance their resistance to rust and other forms of corrosion.
Q:I was just thinking, is their a way to make steel qualities inherent in concrete, therefore eliminating the need for re bar?
Mixing hot steel with liquid concrete would be very hazardous to your health. Steal in a molten state would flash the water in the concrete mix into steam and the steam would blow concrete and steel out of your mold. This would be about like being shot with a shotgun. This occurred in a steel mill near me some years ago on a rainy day when some steel splashed from a ladle and landed on a puddle of water, part of the siding was blown off the building and one worker sent to the hospital.
Q:i need working shoes for women that have steel toe shoes? What store do they sell them in . i live in c.a.
Walmart Steel Toe Shoes
Q:What is the maximum thickness of steel coils?
The maximum thickness of steel coils can vary depending on various factors such as the type of steel, manufacturing process, and industry requirements. However, in general, steel coils can range from a few millimeters to several inches in thickness.
Q:What are the dimensions of steel coils used in the automotive industry?
The dimensions of steel coils used in the automotive industry can vary depending on the specific application, but common dimensions range from 0.5mm to 3mm in thickness and 600mm to 2000mm in width.
Q:What are the different methods of coating steel coils?
There exist numerous techniques for coating steel coils, each offering distinct advantages and applications. A few of the most prevalent methods comprise: 1. Hot-dip galvanizing: The process entails immersing the steel coils in molten zinc. This results in a protective layer forming on the steel's surface, thereby providing exceptional corrosion resistance and durability. 2. Electro-galvanizing: This method applies a layer of zinc to the steel coils using an electroplating procedure. It delivers a similar level of corrosion resistance as hot-dip galvanizing but with a thinner coating. 3. Electro-coating (E-coating): Also known as electrodeposition, this approach involves submerging the steel coils in a bath containing electrically charged particles of paint or resin. By applying an electrical current, these particles adhere to the steel's surface. E-coating provides outstanding corrosion protection and is often used as a primer before applying additional coatings. 4. Powder coating: Steel coils can undergo a dry powder paint application that utilizes electrostatic charging, followed by baking the coating onto the surface. This technique provides a wide array of colors, finishes, and textures, thus offering both aesthetic appeal and corrosion resistance. 5. Organic coatings: These coatings, such as paints or lacquers, are applied to the steel coils using various methods like spray, roller, or dip coating. Organic coatings offer protection against corrosion while also allowing for customizable colors and finishes. Each method of coating steel coils possesses its own set of advantages and is chosen based on the desired level of corrosion resistance, appearance, and specific end-use requirements.

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