Cold Rolled Steel Sheet in Coil/Made in China/High Quality
- Ref Price:
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- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 12 m.t.
- Supply Capability:
- 10000 m.t./month
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Specification
High Quality Cold Rolled Steel Sheet in Coil
PRODUCT DESCRIPTION
Brief Introduction
Cold rolled steel coil 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. Cold rolled steel coil 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 coil 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 coil 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 coil may be manufactured in the form of sheets, strips, bars, or other forms.
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Specification
1. Thickness: 0.18-1.8mm
2. Width: 700-1300mm
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%
Quality Control
With strict observation of lean management requirement,the company strictly examines and tests all processs.Each link from raw material supply to R&D and production and quality test of finished product all abide strictly execute ISO Quality Management System Standard.
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- Q: I am wondering what the highest quality steel is used in handgun production.
- The chrome moly alloy used in blued steel guns is the strongest thing out there today. Stainless guns sacrifice a little in strength in exchange for their rust resistance. Every maker has their own special alloys for various parts as well as proprietary techniques for hardening and tempering depending on the use a part will be put to. Keep in mind that the harder you make steel the more brittle it becomes. Especially true in knife blades also. A custom knife blade could be made much harder than they are, but would shatter under hard use.
- Q: Looking for a new entry door for my home If someone would explain the features and benefits of both fiberglass and steel doors I would greatly appreciate it!!
- price and weight. fiberglas is better but more $
- Q: What are the different methods of annealing steel coils?
- There are several different methods of annealing steel coils, each with its own advantages and applications. The main methods include full annealing, process annealing, and spheroidize annealing. Full annealing is the most common method and involves heating the steel coils to a temperature above its critical point, typically between 800 and 900 degrees Celsius (1472 and 1652 degrees Fahrenheit), and then slowly cooling it down in a controlled manner. This process helps to refine the grain structure of the steel, making it softer and more ductile. Full annealing is often used to relieve internal stresses, improve machinability, and enhance the overall mechanical properties of the steel. Process annealing, also known as subcritical annealing or stress relief annealing, is a method used to reduce the hardness and brittleness of steel coils. It involves heating the coils to a temperature below its critical point, typically between 550 and 650 degrees Celsius (1022 and 1202 degrees Fahrenheit), and then slowly cooling them down. This process helps to relieve internal stresses that may have developed during previous manufacturing processes, such as cold working or welding. Process annealing is commonly used to improve the formability and toughness of steel coils. Spheroidize annealing is a specific type of annealing that is used to soften high carbon and alloy steels. It involves heating the steel coils to a temperature slightly below its critical point, typically between 650 and 700 degrees Celsius (1202 and 1292 degrees Fahrenheit), and then holding it at that temperature for a prolonged period of time. This allows the carbides within the steel to transform into rounded or spheroidal shapes, which increases the steel's machinability and ductility. Spheroidize annealing is often employed in the production of cutting tools, bearings, and other applications where improved machinability is desired. In addition to these main methods, there are also variations and specialized techniques that can be used for specific purposes, such as recrystallization annealing, intercritical annealing, and solution annealing. Each method has its own set of parameters and temperature ranges, and the choice of annealing method depends on factors such as the type of steel, desired mechanical properties, and the intended application of the steel coils.
- Q: Can steel coils be welded?
- Yes, steel coils can be welded. Welding is a common method used to join steel coils together or to other steel components, allowing for the formation of strong and durable connections in various applications.
- Q: ex: boat hull made out of steel
- Metal coating mean the best one is Titanium but it is more expensive .Go for epoxy putty with epoxy painting can solve your need
- Q: How are steel coils used in the production of automotive frames?
- Steel coils are used in the production of automotive frames as they are rolled into sheets and then cut and shaped to form the necessary components of the frame. The coils provide the raw material that is strong, durable, and able to withstand the structural demands of the vehicle.
- Q: How are steel coils used in the production of steel hinges?
- Steel coils are used in the production of steel hinges by being processed and formed into thin strips. These strips are then cut and shaped to create the desired size and shape of the hinges. The steel coils provide the raw material for the hinges, allowing for efficient and precise manufacturing.
- Q: haii, i have this guitar thats quite old and im not quite sure whether to put steel strings on it. there were very thin badly worn steel strings on it when i got it, so i think its an acoustic
- if you can get a good picture of the bridge i can tell for sure i thing steel
- Q: How are steel coils used in the manufacturing of tools?
- Steel coils are used in the manufacturing of tools as they provide a strong and durable material that can be shaped and formed into various tool components. These coils are typically cut, bent, and shaped to create the desired tool design, and then further processed and treated to enhance their strength and performance. Additionally, steel coils are often used for tool handles, as they provide a sturdy grip and long-lasting durability.
- Q: Well actually I was just wondering why people were bashing on stainless so much for katanas. I heard that they don't hold their edge as well as carbon steel blades or Damascus steel. So what makes it so inferior to carbon or other types of steels?
- No real swords are made of stainless steel. Its is simply a poor material for swords. Only kitchen knives that are required to be easy to clean and corrosion resistant are made of stainless. Adding chromium and other trace elements adds nothing to the ability to cut well or hold an edge. It is not strong enough to withstand the forces involved, being too brittle and lacking in toughness. Those decorative swords are not really swords at all.... rather they are sword shaped objects.
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Cold Rolled Steel Sheet in Coil/Made in China/High Quality
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 12 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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