Surface Finish Cold Rolled Steel Coil for Buildings

Surface Finish Cold Rolled Steel Coil for Buildings System 1

Surface Finish Cold Rolled Steel Coil for Buildings

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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Basic Info.

Model NO.:SPCC

Surface Treatment:Oiled

Technique:Cold Rolled

Standard:ASTM, JIS, GB, DIN, BS

Steel Grade:SPCC

Product Description:Cold Rolled Steel

Brand Name:Cheeho & OEM

Heat Treatment:Annealed

Temper Type:Ba

Margin Status:Ec & Em

Surface Condition:Sb & SD

Surface Quality:FC & Fd

Inner Diameter:508-610mm

Approved Certificate:SGS & ISO & BV & TUV

Export Markets:Global

Additional Info.

Trademark:CheeHo & OEM

Packing:Standard Seaworthy Package

Standard:SGS & ISO & BV & TUV Approved

Origin:Jiangyin, Jiangsu, China

HS Code:72091790

Production Capacity:250000mt/Year

Product Description

Brief Introduction
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. 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 coil 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%

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
Grade	C	Mn	P	S	Alt
SPCC	≤0.12	≤0.50	≤0.035	≤0.025	≥0.020
SPCD	≤0.10	≤0.45	≤0.030	≤0.025	≥0.020
SPCE	≤0.08	≤0.40	≤0.025	≤0.020	≥0.020

Q: How do steel coils contribute to the strength and durability of structures?: Steel coils contribute to the strength and durability of structures by providing a high tensile strength and resistance to deformation. The coils are typically made from high-quality steel, which has excellent structural properties. When used in construction, steel coils can be shaped and formed into various structural components, such as beams, columns, and trusses. These components add strength and stability to the structure, making it more resistant to external forces, such as wind, earthquakes, and heavy loads. Additionally, steel coils are highly durable and can withstand harsh environmental conditions, including corrosion and extreme temperatures, ensuring the long-term integrity of the structure.

Q: What is the role of steel coils in the oil and gas industry?: Steel coils play a crucial role in the oil and gas industry. They are primarily used for the transportation and storage of oil and gas products. These coils are typically made of high-quality steel and are designed to withstand the harsh conditions encountered during the extraction, processing, and distribution of oil and gas. One of the main functions of steel coils in the oil and gas industry is to serve as transportation containers. Oil and gas are often transported over long distances, either through pipelines or by tankers. Steel coils are used to construct these pipelines and storage tanks, providing a robust and secure means of transporting these valuable resources. The durable nature of steel ensures that the pipelines and storage facilities can withstand the pressure and temperature fluctuations that occur during the transportation process. Steel coils are also an essential component in the production of drilling equipment. The drilling process involves extracting oil and gas from deep underground reservoirs. Steel coils are used to manufacture various components of drilling rigs, such as pipes, casings, and wellheads. These components must be able to withstand high pressures and temperatures encountered during drilling operations. Steel coils provide the necessary strength and durability to ensure the reliability and safety of drilling equipment. Furthermore, steel coils are used in the construction of offshore platforms. These platforms serve as bases for drilling operations in offshore oilfields. The harsh marine environment, including saltwater exposure and strong winds, requires materials that can withstand corrosion and provide structural integrity. Steel coils are used to fabricate the structural components of these offshore platforms, ensuring they can withstand the challenging offshore conditions. In summary, steel coils play a vital role in the oil and gas industry. They are used for transportation and storage of oil and gas products, construction of pipelines and storage tanks, manufacturing of drilling equipment, and fabrication of offshore platforms. The strength, durability, and resistance to harsh conditions make steel coils an indispensable material in the oil and gas industry.

Q: explain what happen if carbon steel is exposed to an oxygen rich atmosphere at elevated temperature inside a furnace.: Assuming the steel isn't actually melted, two things will happen. First, a layer of iron(ii) oxide, FeO will slowly develop on the surface, getting thicker over time. This layer is usually poorly bonded to the metal surface, it tends to flake off, exposing fresh metal. This is known as mill scale, it's also known as wustite which is the mineral term. Second, the surface of the steel will become decarburized, essentially becoming pure iron, not steel. The depth of the decarburized layer depends on the temperature, time, and the diffusivity of carbon in the steel at the given temp. This has some implications to engineering, in hot-rolling or forging of steel shapes for example. It's often the case that the stress and strain in a material is greatest at or near the surface. Therefore the weakened, decarburized layer at the surface may have a much greater detrimental effect on the steel's performance than might be expected. In a more specific example, die and tool steels depend on their carbon content for their strength and wear resistance, Therefore if such steels are heated in an oxidzing atmosphere, wear resistance is totally destroyed: The thin decarburized iron layer will be extremely soft and malleable.

Q: What are the dimensions of steel coils used in bridge construction?: The dimensions of steel coils used in bridge construction can vary depending on the specific requirements of the project. However, typical dimensions for steel coils used in bridge construction range from 0.5 to 2 inches in thickness and 24 to 72 inches in width.

Q: What are the factors that affect the price of steel coils?: There are several factors that can affect the price of steel coils. These include the cost of raw materials, such as iron ore and coal, which are used in the production of steel. Fluctuations in these commodity prices can have a direct impact on the price of steel coils. Other factors include supply and demand dynamics, changes in production capacity, transportation costs, and global economic conditions. Additionally, factors like trade policies, tariffs, and currency exchange rates can also influence the price of steel coils.

Q: I believe steel is stronger but it steel lighter than iron too?: Steel is iron, with other things added that strengthen it and/or make it less rust liable. So, in general, steel is stronger than iron. In so far as the density, that depends on the steel alloy. Some are higher than iron, some lower. Remember there are hundreds of different steel alloys. edit: but the density is still close to that of iron. density steel 7750 to 8050 kg/m? density iron 7870 kg/m?

Q: Can steel coils be stored in a humid environment?: Steel coils should not be stored in a humid environment as high humidity can lead to corrosion and rust formation on the steel surface, compromising its quality and durability. It is important to store steel coils in a dry and well-ventilated area to maintain their integrity and prevent any potential damage.

Q: How do steel coils contribute to the manufacturing of HVAC systems?: Steel coils play a crucial role in the manufacturing of HVAC systems. These coils are typically made from high-quality steel, which offers exceptional strength, durability, and heat resistance. One of the main uses of steel coils in HVAC systems is for heat exchangers. Heat exchangers are vital components that facilitate the transfer of heat between two different mediums, usually air and a refrigerant. In an HVAC system, steel coils are used in both the evaporator and condenser coils. The evaporator coil absorbs heat from the air inside a building, while the condenser coil releases heat to the outside environment. These coils are designed with numerous tubes that are coiled and connected with fins. The steel construction of these coils ensures that they can withstand high-pressure environments and resist corrosion, ensuring long-term reliability and efficiency of the HVAC system. Steel coils also contribute to the overall structural integrity of HVAC systems. They are commonly used in the fabrication of ductwork, which is responsible for distributing conditioned air throughout a building. The strength and rigidity of steel coils allow ductwork to maintain its shape and structural integrity under various conditions, including high air pressure and temperature fluctuations. Furthermore, steel coils are often used in the fabrication of HVAC system cabinets and enclosures. These cabinets house various components of the system, such as compressors, fans, and control panels. The robustness of steel coils ensures that the cabinets can withstand external forces, protect the internal components, and provide a secure housing for the entire HVAC system. In summary, steel coils are essential components in the manufacturing of HVAC systems. Their strength, durability, and heat resistance make them ideal for heat exchangers, ductwork, cabinets, and enclosures. By utilizing steel coils, HVAC manufacturers can produce systems that efficiently and effectively regulate temperature, improve indoor air quality, and provide comfort in various residential, commercial, and industrial settings.

Q: What are the different methods of blanking steel coils?: There are multiple techniques utilized for blanking steel coils, including: 1. Shearing: To achieve the desired size and shape, shearing involves cutting the steel coil using a shear or a set of shears. This method is commonly used as it is fast and cost-effective, particularly suitable for thin to medium-thickness steel coils. 2. Laser cutting: Employing a high-powered laser beam, laser cutting is a precise and efficient method for cutting through steel coils. It is ideal for complex shapes and thick steel coils, providing clean and accurate cuts. Consequently, it is favored for high-quality blanking. 3. Waterjet cutting: A versatile method, waterjet cutting employs a high-pressure stream of water mixed with an abrasive material to cut through steel coils. It generates no heat and can cut through various materials, including steel. It is particularly suitable for cutting thick steel coils and intricate shapes and designs. 4. Stamping: This method involves pressing a die into the steel coil to cut out the desired shape. It is commonly used for high-volume production as it can rapidly cut multiple pieces simultaneously. Stamping is suitable for cutting simple shapes and is often combined with other processes, such as shearing or laser cutting, for more complex shapes. 5. Plasma cutting: Plasma cutting utilizes a high-velocity jet of ionized gas to cut through the steel coil. It is suitable for cutting thick steel coils and can handle a wide range of materials. Known for its speed and versatility, plasma cutting is a popular method for blanking steel coils. These methods of blanking steel coils offer various benefits depending on project requirements, such as speed, precision, complexity of shapes, and material thickness. The selection of the method relies on factors like cost, production volume, desired quality, and turnaround time.

Q: I want to get one of these knives but I am having trouble deciding which is the best overall knife??ThanksSOG Trident tigerSOG Vulcan TantoSOG Bi-Polar (Serrated)Cold Steel ScimitarCold Steel Recon 1: Those are all excellent quality knives so if the style of knife that you want is available from several makers it comes down to personal preference. I would go with SOG myself but the others are real good too.

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