Cold Rolled Steel/ Hot Steel Rolled different size
- Loading Port:
- Shanghai
- Payment Terms:
- 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
Grade | Chemical Components | ||||
C | Mn | P | S | Alt | |
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 |
FAQ
1. Do you have QC team?
Yeah, sure, our QC team is very important, they will keep the quality control for our products.for quality inspection every day.
- Q: Can steel coils be welded together?
- Yes, steel coils can be welded together. Welding is a common technique used to join metals, including steel coils. It involves melting the edges of the coils and fusing them together using a filler material. This process creates a strong and durable bond between the coils, allowing them to be joined and used as a single unit. Welding steel coils together is commonly done in various industries, such as manufacturing, construction, and automotive, to create larger structures or components. However, it is important to ensure proper welding techniques and quality control measures are followed to ensure the integrity and strength of the weld joint.
- Q: What are the different methods of slitting steel coils?
- There are several methods of slitting steel coils, including rotary slitting, wobble slitting, and crush cutting. Rotary slitting involves using circular knives to cut through the steel coil, while wobble slitting uses a wobbling blade that moves from side to side. Crush cutting, on the other hand, involves crushing the steel coil between two rotating blades to create a clean cut. These methods offer different advantages and are chosen based on the specific requirements of the steel coil slitting process.
- 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: So today I was bored and was reading a shotgun shell box,the box was slug 12ga.I noticed it said not to be used in Damascus steel or twist barrel.It was to my understanding that Damascus steel is very strong and many stories came from what it could cut when used in a blade or sword.The little bit of info that i could find was that Damascus used earlier in the turn of the century on shotguns should not be fired unless special maintenance has been given and check out by gunsmith.So is Damascus not strong like i thought and not be able to handle higher pressure or why the reason for the warning?*
- Damascus steel is is great for blades, but does not have the strength to stand up to smokeless powder pressures.
- Q: what do you think about producebility of low density steel? for example: can density of 1020 steel (or ony others) be decreased without any loss of other properties.
- 1. A method has been developed for magnetic phase analysis of Fermanal type alloys as-quenched and after aging. 2. The upper limit of alloying to ensure the optimal mechanical properties was determined more precisely for steel 9G28Yu9MVB. For rods aged at 550°C for 16 h the aluminum content should not exceed 9.2% and the carbon content 0.92%. 3. To ensure the optimal mechanical properties of the deformed metal it is necessary to obtain a fine-grained single-phase austenitic structure after quenching. The amount of hardening phase after quenching should not exceed 15–20% (saturation magnetization around 1600 G).
- Q: What are the advantages of using steel coils?
- There are several advantages of using steel coils. Firstly, steel coils are highly durable and can withstand extreme conditions, making them suitable for various applications. Secondly, they provide excellent strength and stability, making them ideal for structural purposes. Additionally, steel coils can be easily molded into different shapes, allowing for customization and versatility in design. Moreover, steel coils have a high recycling rate, making them an environmentally friendly choice. Finally, steel coils offer cost-effectiveness due to their long lifespan and low maintenance requirements.
- Q: tinplate,hot rolled coil,hot rolled sheet,cold rolled coil,cold rolled sheet,d bar,wire rod,triangle,structural steel,steel pipe,steel tube,carbon steel pipe
- 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: Why do we galvanise steel? Galvanised steel is steel coated with zinc.
- We galvanize steel to protect and prevent steel from rusting or corrosion. Rusting, for the most part is a layman's term that has been used exclusively to describe the chemical OXIDATION reaction of steel or iron with oxygen forming a reddish brown substance called rust. Zinc metal coating also oxidizes but does not form the reddish brown rust. Instead, it forms an oxide, just like the rust, which is iron oxide. The protection created by zinc is because it is more reactive to oxidizers, than steel or iron. Thus, the oxidizer will react with Zinc first before it will react with Iron, hence protecting iron. If the zinc is fully reacted then iron is next. BUT, the zinc oxide formed on the surface of the steel or iron is no longer reactive to oxygen and also creates a good physical barrier so that oxygen will not have chance to even have contact with the underlying steel. Isn't that neat! Here is chemistry at one of its useful best.
- Q: Please explain why steel is denser than wood.
- Steel is made up mostly of iron with a very small amount of carbon added. Iron is a metallic element with a high atomic number which means it's molecules contain lots of particles and consequently it is relatively heavy, or dense. Wood on the other hand is made up mostly of carbon which is a non-metallic element with a lower atomic number and fewer particles in each molecule, and consequently it is a lot lighter or less dense than steel.
- Q: What are the different grades of steel used in coil production?
- There are several grades of steel used in coil production, including low carbon steel, high carbon steel, stainless steel, and alloy steel. Each grade has specific properties and characteristics that make it suitable for different applications and industries.
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Cold Rolled Steel/ Hot Steel Rolled different size
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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