• 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: How are steel coils used in the production of steel rings?
Steel coils are used in the production of steel rings by being shaped and cut into the desired dimensions. The coils are unrolled and passed through a series of machines that shape the steel into a circular shape. The steel is then cut to the required size and welded together to form the steel rings.
Q: I am wondering what the highest quality steel is used in handgun production.
The first answer was correct. The type of steel used in most blued handguns is the highest. After that I prefer stainless. Then the Scandium framed pistols.
Q: i know that steel helmets werent meant to stop bullets, but i was wondering do they have an value whatsoever for stopping bullets, or is that just yet another thing that hollywood made up(like the omaha beach scene in saving private rian)
They are meant to protect from shrapnel and flying objects,or an enemy's hit to the head. Not meant for protection against bullets [we didn't think so] but at the right angle you could get lucky. What they are useful for is boiling water for coffee etc. Shaving taking a who/e's bath and in the field very handy to have. The bad thing about pots is wearing,you must get accustomed to the weight on your head and neck. You don't think you ever will but finally you do,and because it's many uses and you must wear it,you do!
Q: What are the common defects in steel coils?
There are several common defects that can occur in steel coils during the manufacturing or handling processes. These defects can affect the quality and performance of the steel, and it is important to identify and address them to ensure the production of high-quality steel products. Some of the common defects in steel coils include: 1. Edge waves or buckles: This defect occurs when the edges of the steel coil become wavy or buckled. It can be caused by improper winding, uneven cooling, or excessive tension during the manufacturing process. Edge waves can lead to difficulties in further processing and affect the appearance of the final product. 2. Coil breaks: Coil breaks are longitudinal breaks or cracks that occur in the steel coil due to excessive strain or stress. These breaks can be caused by improper winding, uneven cooling, or excessive tension during the manufacturing process. Coil breaks can lead to product quality issues and are a major concern in the steel industry. 3. Surface defects: Surface defects in steel coils can include scratches, pits, or stains on the surface. These defects can be caused by improper handling, surface contamination, or inadequate cleaning processes. Surface defects can affect the appearance of the steel and may also lead to corrosion or other performance issues. 4. Slivers: Slivers are thin strips or flakes that can peel off from the edges of the steel coil. They can be caused by poor edge trimming, improper handling, or defects in the rolling mill. Slivers can cause difficulties in further processing and may also affect the surface quality of the final product. 5. Weld defects: In steel coils that are made by welding multiple strips together, weld defects can occur. These defects can include incomplete fusion, porosity, or cracks in the weld area. Weld defects can weaken the steel and affect its mechanical properties, making it unsuitable for certain applications. 6. Shape defects: Shape defects in steel coils can include camber, coil set, or crossbow. These defects can be caused by uneven cooling, improper winding, or tension variations during the manufacturing process. Shape defects can make it difficult to process the steel and may lead to dimensional inaccuracies in the final product. It is essential for manufacturers and users of steel coils to be aware of these common defects and take appropriate measures to prevent or mitigate them. Quality control measures, proper handling procedures, and regular inspections can help in identifying and addressing these defects to ensure the production and use of high-quality steel products.
Q: What are the different methods of protecting steel coils from corrosion?
There are several methods for protecting steel coils from corrosion. One common method is applying a protective coating, such as zinc or epoxy, which acts as a barrier between the steel surface and corrosive elements. Another approach is using corrosion inhibitors, which are chemicals that can be added to the storage environment or applied directly to the steel to reduce the rate of corrosion. Additionally, proper storage conditions, such as controlling humidity levels and preventing exposure to moisture and chemicals, can also help protect steel coils from corrosion.
Q: How are steel coils used in the production of automotive engine components?
Steel coils are used in the production of automotive engine components by being processed and shaped into various parts, such as pistons, crankshafts, and connecting rods. The coils are first cut, stamped, and formed into the desired shapes, and then undergo heat treatment and other machining processes to enhance their strength and durability. These components are crucial for the proper functioning of an automotive engine, as they provide structural support and help convert the energy generated by the combustion process into mechanical motion.
Q: What is the role of steel coils in the production of fencing materials?
Steel coils play a crucial role in the production of fencing materials as they serve as the primary raw material for manufacturing various types of fences. These coils are typically uncoiled, cut, and shaped into individual fence components, such as posts, rails, and pickets. The strength and durability of the steel make it an ideal material for fencing, ensuring that the final product can withstand harsh weather conditions and provide security for a long time.
Q: I know you can still but steel core ammo. I have read that it IS Armor Piercing (AP) and I have read it is not. Which is true? I am not looking for its AP capabilities. I want it if it is or is not AP. I live in Oklahoma. I need to know if it legal for me to purchase it in this state; and where can i get it? I am over 18, not a felon, etc. I have seen it sold online in Oklahoma years ago, but have read it is and isn't legal to purchase here. I am looking for 7.62x39 steel core for an SKS. If anyone knows where or how to get some, please let me know, if it's legal. Thanks.
If it is the same stuff I have seen before it is NOT AP stuff. The steel core is a mild steel that is used as a filler to give the bullet a longer bearing surface by reducing the weight that would have been the additional lead core. If the bullet was filled with all lead it would be over the weight desired for the load OR the projectile would be shorter making it less stable in flight. Also lead is a more costly metal to use than the cheap mild steel that China is producing. Anyone that has bought a tool at Wally World, BLOWES, Or HOMERS DESPOT in the last decade can vouch for how cheap the Chinese steel is...
Q: So I want to get my 3+ wood shafted with a dynamic gold shaft because i need a stiffer shaft but dont want to spend much on it.I've never swung a steel shafted wood, but I hear that it is more consistent that graphite....Plus, since the cost of steel is only $15 compared to the $65 graphite, not to mention installation charges.So yeah...... How good is steel for fairway woods?BTW, my swing speed is about 95 but i can amp it up to 110 (with control, that is)
There are very few people who hit steel shafted fairway woods. Tiger Woods used to have a steel shafted 3 wood but went to graphite because it didn't feel right because of his driver. Go get custom fit for a shaft and see if a steel shaft is good to make sure because you don't want to turn aroung a get a graphite shaft anyway if the steel shaft doesn't work. Go with whatg works the first time so you don't put out more money later.
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..
Steel frame houses are built using a modern method of construction (MMC) with an impressive strength to weight ratio and great design flexibility. The modern steel industry has been making in-roads to residential construction and material price reductions in the 1960 s made it a more affordable option.

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