Rolled Steel Coil/Plates with High Quality

Rolled Steel Coil/Plates with High Quality System 1

Rolled Steel Coil/Plates with High Quality

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 89000000 m.t./month

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Description of cold rolled steel coil :

The raw material of cold rolled steel coil/sheet is high quality hot rolled product, and after pickling, kinds of new technology and new process of global cold rolling production have been applied. Therefore the manufacturing, home appliance, automobile etc.

Specification of cold rolled steel coil :

1. Width: 600~1500mm

2. Thickness: 0.15~2.30mm

3. Grade: JIS G3321-SGLCC, SGLC400-570, (G550)

EN10346-DX51D+AZ, DX53D+AZ, S250-S550

ASTM A792M CS-B, SS255-SS550

4. Chemical Treatment: Chromated

5. Surface: Anti-Finger Print

6. Oil: Slight Oiled / Dry

7. Spangle: Regular

8. Zinc Coating: AZ50~AZ185g/m2

9. Coil Weight: 3~14MT

10. Coil ID: 508mm / 610mm

11. MOQ: 60MT per size or by negotiation

Characteristic cold rolled steel coil :

1. Refrigerators, cabinets, power distribution baords and drums.

2. Automobile floor and roof panels.

3. Automobile fenders and quarter panels

4. Automobile fenders and quarter panels

Images of cold rolled steel cold rolled steel coil:

Rolled Steel Coil/Plates with High Quality

FAQ

1.What's your MOQ?
50MT, it is for one container.
2.Whether your company have QC teams?
Yeah, sure, our QC team is very important, they will keep the quality control for our products.
3. What's your normal delivery time?
Our delivery time about 10-20days for standard sizes, if you have other requirements like hardness and width ,it is about 20-40days. But don't worry ,we also try our best for the

Q: Whats the difference in composition? When LTCS is used generally?Whats the temperature range, that these materials can be used? Is there any relation between Killed carbon steel, LTCS, stainless steel, carbon steel(normal)? How to categorise/classify these?Thankyou very much in advance..: This Site Might Help You. RE: What is the difference between LTCS and Carbon steel? Whats the difference in composition? When LTCS is used generally? Whats the temperature range, that these materials can be used? Is there any relation between Killed carbon steel, LTCS, stainless steel, carbon steel(normal)? How to categorise/classify these? Thankyou very much in advance..

Q: were iron age weapons made of steel?: Even in very early iron, a small amount of steel was produced by carburization, where the iron picks up carbon by laying in hot coals before quenching. This produces a thin layer of steel on the surface of the iron. By about 300 BC Damascus steel was being produced by the crucible method on the Indian subcontinent, and the Romans used steel from Noricum. In the first century BC the Chinese were melting cast iron and wrought iron together to make steel.

Q: What are the common methods of protecting steel coils from corrosion?: There are several common methods used to protect steel coils from corrosion. 1. Coating: One of the most effective methods is to apply a protective coating on the surface of the steel coil. Various types of coatings such as paint, epoxy, or zinc can be used to create a barrier between the steel and the corrosive environment. These coatings provide excellent corrosion resistance and prevent moisture and oxygen from reaching the steel surface. 2. Hot-dip galvanizing: This method involves immersing the steel coil in a bath of molten zinc, which creates a thick layer of zinc coating on the surface. The zinc coating acts as a sacrificial barrier, protecting the steel from corrosion. Hot-dip galvanizing is particularly effective in harsh environments or for long-term outdoor exposure. 3. VCI (Volatile Corrosion Inhibitor) packaging: VCI packaging is a method where steel coils are wrapped in a specially designed film or paper that contains volatile corrosion inhibitors. These inhibitors vaporize and form a protective layer on the surface of the steel, preventing corrosion. VCI packaging is commonly used for short-term storage or transportation of steel coils. 4. Desiccants: Moisture is a major contributor to corrosion. Therefore, using desiccants such as silica gel or activated alumina can help absorb moisture and maintain a dry environment around the steel coils. Desiccants are often used in conjunction with other protective methods to enhance corrosion protection. 5. Proper handling and storage: Proper handling and storage practices can significantly reduce the risk of corrosion. Steel coils should be stored in a dry environment away from moisture sources. They should also be handled with clean gloves to prevent the transfer of corrosive contaminants. Regular inspection and maintenance of the storage area are essential to identify and address any potential corrosion risks. By employing one or a combination of these methods, steel coils can be effectively protected from corrosion, ensuring their durability and integrity.

Q: What are the different types of welding used for steel coils?: Steel coil fabrication involves the utilization of various welding techniques, each catered to specific requirements and applications. Here, we present some commonly employed welding methods for steel coil fabrication: 1. Stick welding, also known as Shielded Metal Arc Welding (SMAW), utilizes a flux-coated electrode and an electric current to generate an arc between the electrode and the base material. SMAW is a versatile and extensively used technique suitable for a range of steel coil applications. 2. Gas Metal Arc Welding (GMAW), also referred to as MIG (Metal Inert Gas) welding, employs a continuous wire electrode and a shielding gas to safeguard the weld pool against atmospheric contamination. GMAW is renowned for its high welding speed and ease of automation, making it a favored choice for steel coil manufacturing. 3. Flux-Cored Arc Welding (FCAW) shares similarities with GMAW, but employs a tubular electrode with flux inside. The flux serves as both the shielding gas and added alloying elements, resulting in enhanced efficiency and weld quality. FCAW is often employed for high-speed welding applications in steel coil fabrication. 4. Gas Tungsten Arc Welding (GTAW), also known as TIG (Tungsten Inert Gas) welding, employs a non-consumable tungsten electrode and an inert gas, typically argon, to protect the weld area. GTAW delivers high-quality, precise welds with exceptional control over heat input, rendering it suitable for thin steel coil materials and critical welding scenarios. 5. Submerged Arc Welding (SAW) involves the use of a continuously fed wire electrode and a granular flux that covers the weld area. The arc is submerged beneath the flux, providing excellent protection and minimizing the need for post-weld cleaning. SAW is commonly employed for welding thick steel coils due to its high deposition rates and deep penetration capabilities. These examples highlight the diverse range of welding techniques employed in steel coil fabrication. The selection of the appropriate welding method depends on factors such as the specific steel grade, thickness, desired weld quality, production speed, and cost considerations. It is crucial to choose the suitable welding technique to ensure the longevity and performance of steel coils across different applications.

Q: During fatigue testing of any material (especially for steels), why is strain-control mode preferred over stress control mode?: because metals, like steel, are ductile and will stretch before breaking. Straining the metal is stretching it, stressing the metal is applying a shearing force or bending until there is an actual metal failure. A sheet metal strap 1inch across and 24 gauge metal is commonly used to support metal ducting systems in construction. These have an average strain to failure weight load as high as 16,200 lbs. As reported by the smacna index, they will safely hold 6800 pounds. Of more interest is the screws used to hold the strap to the duct. While they are grade 3, fairly strong, they strain to 1400 pounds when properly installed, and are safely able to support 650 pounds, unless they are overtorqued (stripped) and this quickly drops to 400 pounds and 125 pounds...big difference.

Q: Can steel coils be bent or formed into different shapes?: Yes, steel coils can be bent or formed into different shapes through various processes such as rolling, bending, or stamping.

Q: How are steel coils used in the production of steel brackets?: Steel coils are used in the production of steel brackets as they serve as the primary raw material. The coils are processed through various manufacturing techniques such as cutting, bending, and welding to shape and form the brackets. The high strength and durability of steel coils ensure that the brackets maintain their structural integrity and can withstand heavy loads or harsh conditions.

Q: How are steel coils used in automotive manufacturing?: Steel coils are used in automotive manufacturing as the primary material for forming various components such as body panels, frames, and suspension parts. These coils are processed through specialized machinery and undergo shaping, cutting, and welding to create the desired parts. The durability, strength, and versatility of steel make it an ideal choice for automotive applications, ensuring safety and structural integrity in vehicles.

Q: What are the main factors that affect the surface quality of steel coils?: The main factors that affect the surface quality of steel coils include the quality of raw materials used, the manufacturing process employed, the level of cleanliness and maintenance of equipment, the presence of contaminants or impurities, the coating or finishing applied, and the handling and storage conditions.

Q: How are steel coils used in the production of metal roofing panels?: Steel coils are used in the production of metal roofing panels by being unrolled and fed through a rolling machine that shapes and forms the metal into the desired panel shape. This allows for efficient and precise manufacturing of metal roofing panels, which are then used for construction purposes.

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