Cold Rolled Steel Sheet in Coil/Made in China/High Quality

Cold Rolled Steel Sheet in Coil/Made in China/High Quality

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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

Standard:

ASTM,EN,DIN,GB,JIS

Technique:

Cold Rolled

Shape:

Round

Surface Treatment:

Oiled

Steel Grade:

SPCC SPHC,Q215,Q195,Q235

Certification:

ISO,SGS,BV,CE

Thickness:

0.18mm-1.8mm

Width:

700mm-1300mm

Length:

requirement

Outer Diameter:

according to weight

Net Weight:

12mt

Packaging:

Standard Export Packing

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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Cold Rolled Steel Sheet in Coil/Made in China/High Quality

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.

Packing Image

Cold Rolled Steel Sheet in Coil/Made in China/High Quality

Q: Can steel coils be used in the production of agricultural equipment?: Yes, steel coils can be used in the production of agricultural equipment. Steel is a commonly used material in the manufacturing of agricultural machinery such as tractors, plows, harvesters, and irrigation systems. Steel coils can be formed, cut, and shaped to create various components and structures required for these equipment. The strength, durability, and corrosion resistance of steel make it suitable for withstanding the harsh conditions and heavy workloads involved in agricultural operations.

Q: How are steel coils used in the production of storage containers?: In the production of storage containers, steel coils play a vital role. These coils, manufactured from high-quality steel, are crucial for constructing the walls, floors, and roofs of the containers. To begin the process, the steel coil is uncoiled and passed through a series of machines that cut and shape it into the desired dimensions. Then, the steel is transformed into panels, which are either welded or riveted together to form the container's structure. The strength, durability, and resistance to corrosion make steel coils an excellent material for storage containers. They provide a robust framework that can endure heavy loads and harsh environmental conditions. Moreover, the coils can be easily molded and customized to meet specific size and shape requirements. Once the structure of the container is complete, it is typically coated with a protective layer of paint or other coatings to further enhance its durability and resistance against weather elements. This ensures that the container remains unaffected by moisture, UV rays, and other external factors that could cause deterioration. All in all, steel coils are of utmost importance in the production of storage containers as they offer the necessary strength and durability required to safely store and transport a wide array of goods and materials.

Q: How are steel coils heat treated?: Steel coils are heat treated using a process called annealing. Annealing is a heat treatment technique in which the steel coils are heated to a specific temperature and then slowly cooled down. This process helps to relieve any internal stresses within the steel, improve its mechanical properties, and enhance its overall performance. The heating process involves raising the temperature of the steel coils to a critical point, typically between 800°C and 900°C, depending on the specific grade and desired outcome. The coils are then held at this temperature for a specific period of time, allowing for the transformation of the steel's microstructure. Once the desired time has elapsed, the heated steel coils are slowly cooled down in a controlled manner. This slow cooling process is vital as it allows the steel to undergo a gradual transformation, resulting in a more uniform and refined microstructure. This controlled cooling also helps to minimize the formation of internal stresses, which can potentially weaken the steel. The annealing process can be performed in different atmospheres, such as air, nitrogen, or hydrogen. The choice of atmosphere depends on the specific requirements and properties desired for the steel coils. For instance, annealing in a protective atmosphere like nitrogen or hydrogen can help prevent oxidation or decarburization of the steel surface. Overall, heat treating steel coils through annealing is a critical step in enhancing their mechanical properties, improving their formability, and achieving the desired characteristics for various industrial applications.

Q: What are the limitations of using steel coils in certain applications?: One limitation of using steel coils in certain applications is their susceptibility to corrosion. Steel coils can rust when exposed to moisture or harsh environments, which can affect their structural integrity and performance. Additionally, steel coils can be heavy and bulky, making them less suitable for applications that require lightweight materials or intricate designs. Finally, steel coils may not be suitable for applications that require specific electrical or thermal conductivity properties, as steel is not the most conductive material in these aspects.

Q: What are the advantages of using steel coils in construction?: There are several advantages of using steel coils in construction. Firstly, steel coils are extremely strong and durable. They have a high tensile strength, which means they can withstand heavy loads and resist deformation. This makes them ideal for structural applications in construction, such as beams, columns, and frames. Secondly, steel coils are highly versatile. They can be easily shaped and molded into various forms, allowing for flexibility in design and construction. Steel coils can be rolled, bent, cut, and welded to meet specific project requirements. This adaptability makes them suitable for a wide range of construction applications. Another advantage of using steel coils in construction is their resistance to corrosion. Steel coils are often coated with protective coatings, such as galvanized or stainless steel, to prevent rusting and corrosion. This ensures that the structural integrity of the building remains intact over time, even in harsh environmental conditions. Furthermore, steel coils offer excellent fire resistance. Unlike other construction materials like wood, steel does not burn or contribute to the spread of fire. This makes it a safer choice for construction, particularly in high-rise buildings or areas prone to fire hazards. Lastly, steel coils are cost-effective. While the initial cost of using steel coils may be higher compared to some other materials, their longevity and low maintenance requirements make them a cost-efficient option in the long run. Steel coils have a long lifespan and require minimal repairs or replacements, resulting in reduced maintenance costs and increased overall value. In conclusion, the advantages of using steel coils in construction include their strength, versatility, corrosion resistance, fire resistance, and cost-effectiveness. These qualities make steel coils an excellent choice for various construction applications, contributing to the durability and safety of buildings.

Q: How are steel coils used in the manufacturing of aerospace components?: Steel coils are used in the manufacturing of aerospace components as they provide a reliable source of high-quality steel. These coils can be shaped, cut, and formed into various aerospace parts such as fuselage frames, landing gear, engine components, and wing structures. The strength and durability of steel make it an ideal material for withstanding the extreme conditions and stresses experienced by aircraft during flight, ensuring the safety and performance of aerospace components.

Q: i see a lot of connexes say repair only with corten steel. what is the difference between corten steel and regular steel. and if i was going to stick weld it what type of electrode would i use?and while i'm at it what is the best electrode to use when welding galvenized steel?: 6010 and 6011 Electrodes for welding galvenized steel. Weathering steel, best-known under the trademark COR-TEN steel and sometimes written without the hyphen as Corten steel, is a group of steel alloys which were developed to obviate the need for painting, and form a stable rust-like appearance if exposed to the weather for several years. The corrosion-retarding effect of the protective layer is produced by the particular distribution and concentration of alloying elements in it. The layer protecting the surface develops and regenerates continuously when subjected to the influence of the weather. In other words, the steel is allowed to rust in order to form the 'protective' coating. For welding corten steel: 1A.W.S ClassificationE 7018 - 1AWS A 5 - 1 - 78 2IS classificationE 5424 JXIS 814 (Part I II)H 3BS classificationE 51.54 B 12 17HBs 639 - 1976

Q: What are the different types of steel coil transport methods?: There are several different types of steel coil transport methods, including trucking, rail transportation, and sea freight. Trucking involves using flatbed trucks or specialized trailers to transport steel coils over short distances. Rail transportation utilizes flatcars or specialized railcars to transport steel coils over long distances. Sea freight involves shipping steel coils in containers or on specialized vessels across international waters.

Q: What is the maximum temperature steel coils can withstand?: The specific grade and type of steel being used determine the maximum temperature that steel coils can tolerate. Steel possesses strong heat resistance and can generally endure temperatures ranging from 550°C to 1,100°C (1,022°F to 2,012°F), depending on the grade. Nevertheless, it is essential to acknowledge that extended exposure to high temperatures may compromise the structural integrity of the steel, leading to permanent deformation or failure. Hence, it is crucial to adhere to the manufacturer's guidelines and specifications when establishing the maximum temperature that steel coils can withstand for particular applications.