COLD ROLLED STEEL COIL WITH HIGH QUALITY AND COMPETITVE PRICE NO.1

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
5000 m.t./month

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Product Description:

Cold rolling means that hot rolled steel coil is rolled below recrystallization temperature after pickling, and its finished product is full hard coil. After annealing process for full hard coil, the finished product is cold rolled production. The thin gauge cold rolled steel sheet and strip steel have advantages of low surface roughness, high dimension accuracy and good mechanical properties etc, and which have been widely used in auto manufacturing, home appliance, architecture, aviation, precision instrument, hardware and enameling industry etc.

 

Main specification:                          

 

COLD ROLLED STEEL

Thicknenss

0.10mm-4.00mm

Width       

600mm-2000mm

Sheets length 

1200-6000mm

Coil inner   diameter 

508-610mm

Surface treatement

matt finish/bright   finish,oiling/dry, bright anneal/black anneal

Coil weight    

3-5t

We can supply customers' with different specifications of  the highest quality and lowest price.

 

Cold rolled steel is the based material for galvanized steel coil and pre-painted galvanized steel coil. It is widely used in light industry for marking tank, furniture, refrigerators, washers, freezer plate, air conditioner, micro-wave oven, water heater, soot such machine etc.

 

With excellent cold bending molded manufacturablity, good decoration effect, strong anti-corrosion ability, galvanized steel coils and sheets are also pollution-free and easily recycled. Accordingly, they can be used as final products and basic plates of color coated steel coils. 

 

Sincerely welcome to contact us for the future details if any item interest you ,and we will make every effort to assure that your requirements will be satisfied ,and we hope to establish long-term business relations with you on the basis of the equality and mutual benefit.

We are waiting for your feedback.


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Q:Steel Barns..........?
Barns can be constructed out of a number of materials be it steel, block or wood. Among all the available materials, steel offers the best in terms of strength, durability and pricing. Constructing a barn using wood can be a costly task because of the high price of wood. On the other hand, constructing a barn using block consumes more time and involves a much more professional approach thereby increasing the labor costs. Considering all these factors, it is always recommended to go for steel barns due to their durability, robustness and longer life span.
Q:Is Galvanized Steel a raw material?
For paperclips, the raw material is steel wire. The company that makes paperclips does not smelt iron, they buy the steel wire at the diameter they want it and they feed it into automated machines that bend the wire and cut it to length. If you want to go back into the whole supply chain, then you are looking at a mine that digs iron ore from the ground. The iron ore (Taconite is one of the minerals but there are others) is sent to a smelter that combines the ore with coke (roasted coal) and oxygen in a huge furnace. They may probably add steel scrap, and continuously cast it into bar. good luck
Q:What oil to use on knife steel?
There are several grades of steel and other types of metals used in knives. Like another user said, if it is something like 420 Stainless Steel (a very common knife steel grade), then you should not have to worry about it rusting. I still apply oil to my stainless steel knives though to keep the action smooth. Non-stainless will require oil to prevent rust if you are planning on using them heavily. There is a such thing as knife oil and you can find it online. A lot of car or sportting lubricants will work though. I use Rem Oil, a popular gun oil that you can find at Wally World for about $3 a can. Disassemble your knife. Use a solvent and a cleaning solution to clean off the old oil, dirt, and gunk. I use Hoppes solvent (a solvent that can be found at Wal-Mart for a few bucks) and either pour it into a small shot-glass and dip a toothbrush in it, dampen a wash-rag with it, or pour some in the cap and dab a cotton swab on it. Using one of these tools, I swab down my knives completely, focusing mainly on moving parts and parts of the knife that experiences high abrasion (the lock of a liner lock knife for example). Then I spray it down with Rem Oil. Reassemble the knife and let it sit overnight. The next day, I'll rub off any excess oil from the grips. Usually though, the knife is ready to rock the moment I reassemble it. So that's cleaning knives in a nutshell: take it apart, clean off the old oil and dirt, re-oil it with gun oil, then put it back together.
Q:i want to see the atomic structure of carbon steel?
This is actually a quite complex question... The atomic arrangement in steels can be controlled over a pretty wide range of different structures. This is really the fundamental reason why steel is such a commonly used material. The different atomic structures produce different physical properties so metallurgists have developed many different processes to control the atomic structure to get the properties they want. One simple answer is that Fe is BCC, body centered cubic at room temperature at equilibrium conditions. When you heat Fe up, it transforms to FCC, face centered cubic. If you continue heating Fe, it goes back to BCC, then it melts. The addition of C makes these structures (and the transformation temperatures) different. Deviating from equilibrium conditions by, for example, cooling very quickly (quenching) creates different atomic structures (one of the most important is known as martensite). Depending on how much C is in the steel, you can also have two different atomic structures (two different phases) present in equilibirum, for example, pearlite which is a mix of alpha Fe (BCC) and iron carbide Fe3C (orthorombic crystal structure). So... you need to think a little more about exactly what you want a picture of. I hope this helps
Q:AR-15 rounds - steel vs. brass?
Steel is a far more common thus cheaper metal than brass which is made of copper and zinc. The steel case stays in the firing chamber so does not do a thing to the barrel. It does have a different coefficient of expansion and when the gun gets hot it could jam in the chamber more than brass. Some of the steel has a lacquer coating on it that could gum up the works. The biggest disadvantage with steel is that as it is worked it gets weaker so reloading it is not real practical as you will get a lot of blown cases and head separations. In the long run you come out ahead buying brass and reloading than you do buying steel and throwing it away.
Q:Nylon or Steel Stringed Guitar?
u can play any type o music with steel stringed guitar.. but with nylon string ,guitarist usually pick the strings with finger nails,coz its will be hard to hit that with guitar picks coz there will be a chance of string popping nylon string gutiars are used for classical guitar playing... the tone is somehow sweeter on nylon.. but its up to you according to your music style
Q:how to tell if its stainless steel?
If you do a lot of scrapping. It is best to get XRF handheld metal analyzer. But they are quite price. Around USD 40.000 upwards! Magnet may only help you sort SUS304/316/201 from SUS430 and metal. But then there might be other alloy. Thus it is best to get XRF analyzer if you feel it is worth the price.
Q:Ideas for Fantasy Culture: Steel Making?
Well, steel is just modified iron, so you're going to have to start with acquiring the iron first. For that, you're most likely going to be using some sort of underground mining somewhere - either they do that themselves, or they purchase the iron elsewhere. Assuming you're not dealing with meteoric iron (which is possible, but pretty uncommon), or iron sands (not likely in a woodland area), then unless you're dealing with a rocky outcropping with iron veins out in the open, I'm pretty sure there needs to be somebody doing some digging. That said, it doesn't need to be a full raping of the land scenario. A couple of minor mines, some small-scale smelting operations, and somebody knowing the secret of making steel, and it could give you small amounts of steel without making an ecological disaster.
Q:Is it possible to stain steel red?
Yes you can, steel is a very storng metal. Source - www.qualitas-steel-doors.co.uk/
Q:Is boron steel harder?
There is really no simple answer to this question. Boron is usually used for a handful of reasons, but most center on high volume low cost production of durable hardened steel. Boron is a very cheap way to get very durable parts with very minimal alloying of expensive materials. It was born of necessity during WW2 and is currently in WIDE use in bulldozer undercarriage. Probably in place of what would otherwise be 4140. Boron steel is quite a bit more difficult to properly heat treat. Better suited to mass production facilities with tight controls, but when done properly provides material just as durable as higher alloys. Not a backyard endeavor such as ht/tempering carbon steel or tool steels without appropriate homework and treatment controls.

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