cold rolled steel - SPCE in Good Quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 5000000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Specification
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.
COLD ROLLED STEEL | |
THICKNESS | 0.3-0.5MM |
WIDTH | 600-1250MM |
SHEET LENGTH | 0-6000MM |
COIL ID | 508MM OR 610MM |
SURFACE TREATMENT | MATT FINISH/BRIGHT FINISH, OILED/DRY |
ANNEALING METHODS | BRIGHT ANNEAL/BLACK ANNEAL |
Advantage
1. High Quality SurfaceFinish
2. High Dimensional Precision
3. Excellent mechanicalproperty
Package & Delivery
Package details: Standardseaworthy packing for international delivery.
Delivery: According to theexact quantity of your order.
Quality of the goods could be guaranteed. The finished product has a variety of excellent capabilities, such as continuous rolling, degreasing, annealing, skin pass, slitting and cut to length line etc. Along with it many rocessing capability and smooth, flat surface. It’s widely used in outdoor and interior decoration, furnishing.
- Q:What are the common welding techniques used for steel coils?
- Steel coils can be welded using different techniques, such as shielded metal arc welding (SMAW), gas metal arc welding (GMAW), and flux-cored arc welding (FCAW). SMAW, also known as stick welding, involves creating an arc between the welding electrode and the base material using an electric current. The electrode is coated with flux, which shields the weld from atmospheric contamination. This versatile technique can be used for both thick and thin steel coils. GMAW, commonly known as MIG welding, is an automated process that uses a continuous wire electrode and shielding gas. The electrode is fed through a welding gun, and an electric current creates an arc with the base material. This fast and efficient technique is suitable for high-volume production of steel coils. FCAW is a variation of GMAW that uses a tubular electrode filled with flux instead of a solid wire. The flux provides shielding gas and additional fluxing agents to protect the weld from impurities. FCAW is often preferred for welding thicker steel coils due to its better penetration and higher deposition rates. In addition to these techniques, laser welding and electron beam welding can be used for specific applications in steel coil manufacturing. These methods offer precise and high-quality welds but are typically more expensive and require specialized equipment. Ultimately, the choice of welding technique depends on factors such as material thickness, production volume, and specific product requirements.
- Q:How long do steel coils last?
- The lifespan of steel coils can vary depending on various factors such as the quality of the steel, the conditions in which they are stored or used, and the specific application for which they are being used. Generally, high-quality steel coils can last for several years to several decades before showing signs of deterioration or wear. However, it is important to note that steel coils can be susceptible to corrosion if not properly maintained or protected from moisture or harsh environmental conditions. Therefore, regular inspection, maintenance, and appropriate storage or usage practices are crucial in maximizing the lifespan of steel coils.
- Q:What are the challenges in coil leveling for high-strength steel?
- Achieving optimal results in coil leveling for high-strength steel involves addressing several challenges. The steel's inherent hardness and strength present one of the main obstacles. High-strength steel is designed with enhanced mechanical properties, including tensile strength and hardness, making it difficult to deform and shape. To overcome the steel's high-strength nature, specialized leveling equipment is needed. This equipment must exert sufficient force to counter the steel's resistance to deformation. This may involve using stronger and more durable leveling rollers or increasing the pressure applied during the leveling process. Failing to apply the appropriate force can result in incomplete leveling, leading to residual stress and dimensional inaccuracies in the final product. Another challenge in coil leveling for high-strength steel is the potential for springback. Springback refers to the material's tendency to return to its original shape after being deformed. High-strength steel is especially prone to springback due to its higher elastic modulus. This can result in uneven leveling and dimensional variations in the coil. To mitigate springback, advanced leveling techniques can be utilized. These techniques include overbending and pre-bending the steel. Overbending involves bending the steel beyond the desired level, allowing it to spring back to the desired shape. Pre-bending, on the other hand, involves intentionally bending the steel in the opposite direction before leveling it, counteracting the effects of springback. These techniques require precise control and expertise to ensure accurate leveling. Additionally, high-strength steel often has a more pronounced yield point. The yield point is the stress level at which permanent deformation occurs. This can make it challenging to achieve consistent and uniform leveling throughout the coil. Proper adjustment of the leveling equipment and careful monitoring of the leveling process are necessary to effectively address this challenge. Furthermore, high-strength steel coils are often thinner and more sensitive to surface imperfections. Careful regulation of the leveling process is crucial to avoid causing damage to the steel surface, such as scratches or indentations. This may involve using softer leveling rollers or implementing protective measures, such as cushioning materials or coatings, to prevent surface defects. In summary, the challenges in coil leveling for high-strength steel revolve around its inherent hardness, springback tendencies, yield point behavior, and sensitivity to surface imperfections. Overcoming these challenges requires specialized equipment, advanced leveling techniques, precise control, and expertise to ensure accurate and high-quality leveling results.
- Q:What are the different methods of edge trimming for steel coils?
- There are several methods of edge trimming for steel coils, depending on the specific requirements and application. Some of the common methods include: 1. Slitting: This is one of the most common methods used to trim the edges of steel coils. It involves passing the coil through a set of circular knives that cut the edges into narrower strips. Slitting can be done in-line during the manufacturing process or as a separate operation. 2. Shearing: Shearing is another popular method used for edge trimming. It involves using a set of blades to cut the edges of the coil in a straight line. Shearing is often used when precise and clean cuts are required, and it can be done manually or with the help of automated machinery. 3. Laser cutting: Laser cutting is a more advanced method that uses a high-powered laser to trim the edges of steel coils. This method provides precise and smooth cuts, and it is often used when high accuracy and quality are essential. Laser cutting can be incorporated into the production line or performed as a standalone process. 4. Grinding: Grinding is a method that involves using abrasive wheels or belts to remove material from the edges of steel coils. It is commonly used to remove burrs, rough edges, or surface imperfections. Grinding can be done manually or with the help of automated machines, depending on the scale and complexity of the trimming process. 5. Waterjet cutting: Waterjet cutting is a method that utilizes a high-pressure jet of water mixed with abrasive particles to trim the edges of steel coils. This method is known for its versatility and ability to cut through a wide range of materials and thicknesses. Waterjet cutting is typically used when complex shapes or intricate designs need to be achieved. Overall, the choice of edge trimming method for steel coils depends on factors such as the desired accuracy, speed, complexity of the edges, and the specific requirements of the application. Different methods offer varying levels of precision, efficiency, and cost-effectiveness, allowing manufacturers to select the most suitable technique for their specific needs.
- Q:How do steel coil manufacturers handle product recalls?
- To ensure the safety and satisfaction of their customers, steel coil manufacturers have developed a systematic approach for handling product recalls. The following outlines the steps involved: 1. Identifying the issue: When a potential problem or defect arises in steel coils, manufacturers initiate the recall process. This can be a result of quality control failure, safety concerns, or non-compliance with industry standards. 2. Investigating and evaluating: The manufacturer investigates the root cause of the problem and evaluates its impact on customer safety and satisfaction. They analyze the affected batch or production run to determine the extent of the issue. 3. Notifying customers: Manufacturers promptly inform customers who have purchased the affected steel coils. They utilize various channels, such as direct mail, email, phone calls, or public announcements, to communicate the recall details. This includes specific information about the problem, potential risks, and instructions on how to proceed. 4. Retrieving and replacing: The manufacturer provides instructions on how customers can safely return or dispose of the recalled steel coils. They may offer options for product retrieval, such as direct pick-up or designated drop-off points. In some cases, manufacturers may provide replacement steel coils or reimburse customers for the affected products. 5. Communicating publicly: Steel coil manufacturers issue public statements and notifications to inform the wider market, distributors, and retailers about the recall. This ensures that all stakeholders are aware of the issue and can take appropriate actions. 6. Taking corrective measures: After retrieving the recalled steel coils, manufacturers implement corrective actions to rectify the issue. This may involve improving quality control processes, upgrading manufacturing equipment, or revising product specifications to prevent future recalls. 7. Providing customer support: Throughout the recall process, manufacturers offer customer support to address concerns, questions, or complaints. They establish dedicated hotlines, email addresses, or online portals to assist customers and guide them through the recall process. 8. Ensuring regulatory compliance: Steel coil manufacturers comply with relevant regulatory authorities and standards organizations during the recall process. They work closely with regulatory agencies to provide necessary information, documentation, and updates to meet legal requirements. In conclusion, steel coil manufacturers prioritize customer safety and satisfaction by following a well-defined process for handling product recalls. This includes identifying the issue, investigating, notifying customers, retrieving and replacing products, communicating publicly, implementing corrective actions, providing customer support, and ensuring regulatory compliance. Through these steps, manufacturers aim to rectify the issue, prevent harm, and maintain trust with their customers.
- Q:What are the different methods of slitting edge trimming for steel coils?
- Steel coils can be slit using various methods, each with its own benefits and applications. 1. Rotary Shear Slitting: This approach utilizes rotary knives mounted on a rotating shaft to cut through the steel coil. The knives create a shearing action as they pass through the coil. Rotary shear slitting is versatile, accommodating various coil thicknesses and materials. It is commonly employed for high-volume production, offering clean and precise cuts. 2. Crush Cut Slitting: This method involves pressing the steel coil against a hardened anvil with a rotating knife. The coil is cut by crushing it against the anvil. Crush cut slitting is suitable for thinner gauge materials and those sensitive to shearing forces. It provides clean cuts but may have limitations in terms of coil thickness and width. 3. Razor Slitting: Razor slitting employs a razor blade mounted on a rotating shaft to slice through the steel coil. This method is commonly used for thin and delicate materials that require precise and burr-free edges. While it provides clean cuts, it may be limited in terms of coil thickness and width. 4. Shear Slitting: This approach utilizes a pair of opposing blades to shear through the steel coil. The blades move past each other, creating a scissor-like cutting action. Shear slitting is commonly used for heavier gauge materials, offering clean and precise cuts. It is suitable for high-speed production and can handle a wide range of coil thicknesses and materials. 5. Laser Slitting: Laser slitting employs a high-powered laser beam guided by computer-controlled optics to cut through the steel coil. It offers precise and clean cuts and is suitable for various coil thicknesses and materials, including high-strength steels. Laser slitting provides a high level of accuracy and can handle complex cutting patterns. Each method has its own advantages and considerations, depending on the specific requirements of the steel coil slitting operation. Factors such as coil thickness, material type, desired edge quality, and production volume will influence the choice of slitting method.
- Q:Hello,I have been thinking about buying a Tungsten Carbide Diamond wedding band for my husband but one of my family members keep telling me that Tungsten Carbide is merely steel and hence, a low quality metal, therefore, I shouldn't buy it. I don't really know much about it. Please if anyone can tell me more about this metal? Thanks.
- Tungsten is not steel. Tungsten is a chemical element. What they do is add an alloy mixture to tungsten and it turns into Tungsten Carbide. You want to find a ring with a nickel alloy, some manufacturers cheap out and add cobalt instead. Make sure the ring you buy does not contain cobalt. Steel is an alloy consisting mostly of iron, with a carbon.
- Q:What are the different types of steel coil coatings for corrosion resistance?
- Steel coil coatings can be classified into two main types: organic coatings and metallic coatings. 1. Organic coatings are commonly used for steel coil applications due to their excellent corrosion resistance and durability. There are four types of organic coatings: - Polyester coatings: These coatings offer good weatherability and resistance to chemicals, making them suitable for outdoor applications. - PVDF coatings: These coatings are highly resistant to UV radiation, weathering, and chemicals. They provide exceptional durability and are often used in demanding environments such as coastal areas or industrial settings. - Polyurethane coatings: These coatings offer excellent abrasion resistance and a high level of corrosion protection. They are commonly used in applications where there is a higher risk of mechanical damage or exposure to harsh conditions. - Epoxy coatings: These coatings provide excellent adhesion and chemical resistance. They are often used in industrial applications where resistance to chemicals, solvents, and oils is required. 2. Metallic coatings provide effective corrosion protection and can be further divided into two types: - Galvanized coatings: These coatings involve applying a layer of zinc to the steel surface through a hot-dip or electroplating process. This creates a barrier between the steel and the surrounding environment, providing effective corrosion protection. Galvanized coatings are widely used in various industries due to their cost-effectiveness and good durability. - Galvannealed coatings: These coatings are similar to galvanized coatings but undergo an additional heat treatment process. This results in a coating with increased hardness and improved paint adhesion, making it suitable for applications that require additional surface protection or paintability. When selecting the appropriate steel coil coating, it is essential to consider the specific requirements of the application and the level of corrosion resistance needed. Consulting with coating manufacturers or industry experts can help determine the most suitable coating for a particular application.
- Q:How many millimeters is a number 3 steel crochet hook?
- This depends whether you have a US or a UK pattern. The pre metric UK size 3 was different to the US size 3. Google in compare US/UK crochet hooks and it gives a chart showing the metric/US/UK sizes.
- Q:What are the different types of steel coil edge treatments?
- In the manufacturing and processing of steel coils, various steel coil edge treatments are employed. These treatments serve to improve edge quality, protect against damage, and facilitate the handling and processing of the coils. Some of the prevalent types of steel coil edge treatments are as follows: 1. Mill Edge: The steel mill provides this standard edge treatment, which is the raw edge of the steel coil generated during the hot rolling process. The mill edge is typically sharp and may exhibit some irregularities. 2. Slit Edge: Slit edge treatment involves slitting the coil to the desired width and subsequently processing the edges to eliminate any burrs or unevenness. Compared to mill edge coils, slit edge coils have smoother edges. 3. Deburred Edge: The deburring process removes any sharp or rough edges from the coil using specialized equipment or techniques, resulting in a smoother and safer edge. Deburred edges find common use in applications where safety and handling are of utmost importance. 4. Rounded Edge: Rounded edge treatment entails rounding the edges of the coil to minimize the risk of damage during handling and processing. This treatment is frequently employed in applications where the coil must be uncoiled or fed into machinery without incurring any damage. 5. Beveled Edge: Beveling involves chamfering or cutting the edges of the coil at an angle. Beveled edges are utilized in applications where easy insertion, joining, or welding of the coil is required. The beveling process also enhances the strength and durability of the edge. 6. Sheared Edge: Shearing is a cutting process that employs high-pressure blades or scissors to cut the coil to the desired width. Sheared edge treatment yields a clean and straight edge, devoid of burrs or irregularities. It is commonly employed in applications that necessitate precise dimensions and a smooth edge. These are merely a few examples of the various steel coil edge treatments commonly employed in the industry. The selection of edge treatment depends on specific application requirements, such as handling, processing, safety, and aesthetics.
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cold rolled steel - SPCE in Good Quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 5000000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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