Cold Rolled Steel/ Steel Rolled different size

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Shanghai
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TT OR LC
Min Order Qty:
20 m.t.
Supply Capability:
10000 m.t./month

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Product Description

Brief Introduction
The Cold Rolled Steel  is steel that has been worked below its recrystallization temperature by passing it between a pair of rollers. Recrystallization temperature is the temperature at which grains in the lattice structure of the metal have been rearranged, leaving it free of strain and deformations. The Cold Rolled Steel  is pre-treated before being cold rolled with a process known as pickling, which uses strong acids to remove scale and other impurities. The Cold Rolled Steel  is then passed through rollers to reduce its thickness. Most cold rolling takes place in multiple passes and as the size of the Cold Rolled Steel  is further reduced, its strength and hardness both increase, but its ductility decreases. After cold rolling, heating the metal up in a process known as annealing can restore some of its ductility. The final Cold Rolled Steel  may be manufactured in the form of sheets, strips, bars, or other forms.

Specification
1. Thickness: 0.4-2.0mm
2. Width: 900-1250mm
3. Inner Diameter: 508mm
4. Weight of Steel Coil: 3-15MT
5. Heat Treatment: Annealed
6. Margin Status: EC & EM
7. Surface Quality: FB&FC
8. Surface Status: SB & SD
9. Surface Treatment: Oiling

Mechanical Properties
1. Yield Strength: ≤ 320MPa
2. Tensile Strength: ≤ 370MPa
3. Elongation (L=50mm, b=25mm) When:
(1) Nominal Thickness<0.25mm: 30%
(2) Nominal Thickness 0.25mm-<0.40: 32%
(3) Nominal Thickness 0.40-<0.60mm: 34%
(4) Nominal Thickness 0.60-<1.0mm: 36%
(5) Nominal Thickness 1.0-<1.6mm: 37%
(6) Nominal Thickness >1.6mm: 38%

Packing
We use Seaworthy Package to make sure Cold Rolled Steel  is well-protected during the long ocean voyage.

Application
1. Base metal for coated and dipped products.
2. Home appliance
3. Precise welding tube
4. Flux cored welding wire
5. Bicycle, battery shell,
6. Automobile fitting, hardware
7. Enameling industry etc.

Superiority
1. High precision of dimensional tolerance
2. Excellent mechanical property such as the yield strength and tensile strength, etc.
3. Being highly resistant to denting
4. Exhibits useful magnetic properties
5. High quality surface finish and get well prepared for the surface coating
6. Available in a variety of sizes and shapes with characteristics useful in a wide range of applications

Chemical Components

GradeChemical Components
CMnPSAlt
DC01≤0.12≤0.50≤0.035≤0.025≥0.020
DC03≤0.10≤0.45≤0.030≤0.025≥0.020
DC04≤0.08≤0.40≤0.025≤0.020≥0.020

Cold Rolled Steel/ Steel Rolled different size

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Yeah, sure, our QC team is very important, they will keep the quality control for our products.for quality inspection every day.

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Q:which companies are first hand's sellers of the steel, in the world?
Here are the top 30 steel producing companies in the world, listed by the megaton output: 1. 63.0 Mton Mittal Steel Company NV (Global) [2] 2. 46.7 Mton Arcelor (Europe) [3] 3. 32.0 Mton Nippon Steel (Japan) [4] 4. 30.5 Mton POSCO (South Korea) [5] 5. 29.9 Mton JFE (Japan) [6] 6. 23.8 Mton Shanghai Baosteel Group Corporation (China) 7. 19.3 Mton United States Steel Corporation (United States) 8. 18.4 Mton Nucor Corporation (United States) 9. 18.2 Mton Corus Group (Europe) [7] 10. 17.5 Mton Riva Group (Europe) [8] 11. 16.5 Mton ThyssenKrupp (Europe) [9] 12. 16.1 Mton Tangshan (China) 13. 13.9 Mton EvrazHolding (Russia) 14. 13.7 Mton Gerdau (Brazil) 15. 13.6 Mton Severstal (Russia) 16. 13.5 Mton Sumitomo Metal Industries (Japan) 17. 13.4 Mton SAIL (India) 18. 12.0 Mton Wuhan Iron and Steel (China) 19. 11.9 Mton Anshan (China) 20. 11.4 Mton Magnitogorsk (Russia) 21. 10.5 Mton Jiangsu Shagang (China) 22. 10.5 Mton Shougang (China) 23. 10.4 Mton Jinan (China) 24. 10.3 Mton Laiwu (China) 25. 10.3 Mton China Steel (Taiwan) [10] 26. 9.6 Mton Maanshan 27. 9.4 Mton Imidro 28. 8.7 Mton Techint 29. 8.7 Mton Usiminas (Brazil) 30. 8.5 Mton Novolipetsk (Russia)
Q:Steel Buildings?
it is possible...but with the current ever rising cost of steel...it is more expensive than reinforced concrete..... ...one more disadvantage is tat u have to use large I sections for the columns as steel do not take compression as good as concrete... ..tat is why u see..almost all totally steel structures are bridges where tensile strength rules more than compression.
Q:what Wok to buy - carbon steel, stainless steel, cast iron?
1. Do not buy stainless Steel wok. Stainless steel is a poor conductor of heat. 2. Cast iron is traditional. It is heavy and takes long to heat and cool. You can get used to heating cooling, but weight can be a problem. I would not buy cast iron. 3. You may not believe this but carbon steel is also traditional and most widely used wok. Normally, a good wok is pounded out of high carbon steel thick stock. The pounding leaves thick bottom and gradually thinner walls. It is a good conductor of heat, easy to heat and cool, and light weight to mange taking off the heat when needed. I recommend buying high carbon steel wok
Q:What's the best material for color coated steel coil?
The base material of color coated coil is mainly galvanized steel or galvanized alloy steel plate.
Q:Can cold rolled galvanized steel coils be acid washed after oxidation?
If it has been galvanized, it can not be pickled, and if it is pickled, it may corrode the zinc layer
Q:manufacturing process of steel containers?
There are many types of steel containers and many different mnfg processes. There are also thousands of different steel alloys. Steel is used for canned food, compressed air cyclinders, hydraulic pressure vessels, electrical boxes, and many other containers. Steel containers are made out of sheet metal by soldering, brazing, spot welding, seam welding, riveting, bolting, screwing, etc. Heavier wall containers are fabricated of plate steel. Some steel containers are made by deforming the steel by extruding, forging, spin forming, drawing, ironing, etc. Some steel containers are made by machining. You should be able to find plenty of references if you search for these terms. good luck
Q:Do any of you teens out there know what a Steel Guitar is?
i play acoustic, but i have tried to play a steel guitar before, my cousin has one. (:
Q:How would you encase steel in concrete?
OK, here is my take on it Take equal lengths of steel wire, one is going to bare, one is going to be encased You will need a tension rig, simply this will be one fixed end and one end you can hang a weight down. For the test you will affix one end and string it between to supports with one end hanging off, which is where you will put the weight. The put a ruler where the weight is, so as the weight pulls the wire down (after it is hot) you can time the stretching. lastly you need a place to put a controlled fire under the wire, I'd reccommend something tame like a camping stove OK, got a test rig and two pieces and a way to test. You'll have to play with different fires and weights to see what works best Putting the concrete on the wire is a tricky one since you don't want the concrete to take the load. Get a tub or dish of approriate size and put some wet concrete in it, partway up. Take one of the wires and coat it with wax or something like it that is soft. Place the wire, with the ends sticking out, in the concrete tub and pour more on to cover it. Let this whole thing harden. You might want to have a specific shape to the tub so it comes out a certain size Now, you have an uncoated wire and an coated one. Be careful you don't pull the wire out of the concrete Another way to do this would be to use joing compound, which is a type of mortor (cement). You can buy it a home depot or such. Mix it up as thick as possible and just cake it on the wire and let harden. You can shape the coating using saran wrap or something maybe. I my world we call this stuff monster mud, its used to shape things for Halloween props like robes into figures. Its quite sturdy when done When you are ready to test just hook each part up with the same fire and weight and take readings of stretch vs. time
Q:Fallout 3, missions in broken steel?
Nah the rest really aren't that intresting. i usually just walk around looking for missions............ and caps
Q:Which Material is Better? Glulam or Steel?
Steel is better. You can use a smaller size compared to wood, it will handle more weight and will not deflect like a lam beam can and will. I've worked in a lot of older houses and the ones with steel beams always had far less differential settling than those with wood beams.

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