Q:What are the common defects in steel coil finishes?

Some common defects in steel coil finishes include scratches, dents, waviness, uneven coating thickness, corrosion, and surface contamination.

Q:Well the other day i told my friend that when you put a compass near steel it will screw up and he said only magnets do that then i showed him and it worked then he said: that'ss because steel has its own magnet in it coz it builds up static electricity is that correct what he said? thanks

If you sprinkle iron filings near a bar magnet (on paper, etc.) the filings will try to line up with the magnetic field (because iron atoms behave like tiny magnets). Bringing the compass near steel (mainly iron with a little carbon) will cause the iron to try to align with the magnet of the compass needle, however, because the needle is free to swing it also aligns with the magnetic field set up between the needle and steel. Any static electricity would have nil effect on the magnetic field.

Q:i need this for school and i need to know what are some advantages of stainless steel.

I would go for stainless steel cookware. There are some advantages of stainless steel cookware that make it so popular. *Durable: stainless steel is tough and can last for years and decades. It is not prone to chipping, rusting or even staining. It won’t dent and scratch easily as well. It is basically indestructible kind of cookware. it can also handle extreme temperatures. *Hard and non-porous. *Appearance: it will remain looking brand new for a long time and this is not because of its high maintenance. *Flavor preservation: stainless steel cookware is made in such a manner that none of the metals in the alloy will be tasted in the food cooked and neither will any of the material come in the food. *Recyclable: in an event where the cookware does get damaged, it can be recycled or salvaged. *Safe: while using stainless steel cookware, you need not be worried about any kind of metal poisoning.

Q:earlier name of jsw steel ltd. may be jindal iron steel ltd.

JSW Steel Ltd - Profile Office Address 5 A, Jindal Mansion, Dr A G Deshmukh Marg, Mumbai Maharastra 400026 Phone 022-23513000 Business Summary JSW Steel Limited Formerly known as Jindal Vijayanagar Steel Limited. The Company's principal activity is to manufacture hot rolled steel coils in India using the revolutionary Corex technology. In addition, the Company also manufactures steel plates and sheets. It manufactures steel using oxygen based iron and steel through continuous casting and hot rolling. Executive Team Executive Name Designation Savitri Devi Jindal Sajjan Jindal Dr. B N Singh Chairperson Additional Director Vice Chairman Managing Director Joint Managing Director

Q:Steel is a mixture of Iron Carbon . So , is steel a metal or non - metal ?

steel is an alloy - mix of two meatls alloy is a mixture and metal is an element so no comparision

Q:How long can steel coils be stored?

Steel coils can be stored for an extended period, typically up to six months to a year, depending on the specific type of steel and its storage conditions.

Q:Can steel coils be used in the manufacturing of appliances?

Yes, steel coils can be used in the manufacturing of appliances. Steel coils are often used as a primary raw material in the production of various appliances such as refrigerators, stoves, dishwashers, and washing machines. The steel coils are typically processed and shaped into specific parts or components required for the appliances, such as panels, frames, or doors. The use of steel coils in appliance manufacturing offers several advantages, including strength, durability, and resistance to corrosion. Additionally, steel coils can be easily fabricated and manipulated to meet the specific design requirements of different appliances, making them a versatile and commonly used material in the industry.

Q:How are steel coils handled during transportation to prevent damage?

Steel coils are typically handled with extreme care during transportation to prevent damage. They are secured tightly using steel strapping or bands to prevent any movement or shifting during transit. Additionally, protective packaging materials, such as wooden or steel crates, are often used to provide extra cushioning and stability. Specialized equipment, such as forklifts or cranes, are used to lift and load the coils onto trucks or containers, ensuring safe and secure transportation.

Q:what is the chemical process that makes steel harder when it is heated and cooled rapidly?what does the heating of it do to the atoms?what does the cooling of it do to the atoms?what makes tempered steel so strong compared to untempered steel?

You can't temper all steels. Generally the material must be a high-carbon or tool steel. Different alloys temper differently, and tempering is usually done to get a specific set of characteristics, so you must know what you are working with and use the right methods and temperature. If you do it wrong, the material may be hard but too brittle for the purpose or have other issues. It can be simple, such as heating to a dull red, carbonizing the surface (use an acetylene rich flame until it blackens the surface) and oil quenching. Do that to a piece of tool steel (like a screwdriver) and it will case (surface) harden it to the point you can't scratch it with a file. Tempering changes the way the molecular structure in the metal is linked and oriented.

Q:What are the common welding methods used for steel coils?

There are several common welding methods used for steel coils, depending on the specific requirements and applications. Some of the most widely used methods include: 1. Shielded Metal Arc Welding (SMAW): Also known as stick welding, SMAW uses an electrode coated in flux to create an arc between the electrode and the base metal. This method is commonly used for its simplicity and versatility, making it suitable for a wide range of steel coil welding applications. 2. Gas Metal Arc Welding (GMAW): Also known as MIG (Metal Inert Gas) welding, GMAW uses a continuous wire electrode and a shielding gas to protect the weld pool from atmospheric contamination. This method is favored for its high welding speed and excellent control over the welding process. 3. Flux-Cored Arc Welding (FCAW): Similar to GMAW, FCAW uses a continuously fed tubular electrode filled with flux to protect the weld pool. This method is often preferred for its high deposition rates and ability to weld thicker steel coils, making it ideal for heavy-duty applications. 4. Gas Tungsten Arc Welding (GTAW): Also known as TIG (Tungsten Inert Gas) welding, GTAW uses a non-consumable tungsten electrode and an inert gas shield to protect the weld pool. This method is commonly used for its precise control, high-quality welds, and ability to weld thin materials. 5. Submerged Arc Welding (SAW): SAW involves the formation of an arc between a continuously fed wire electrode and the steel coil, while a granular flux covers the arc and weld area. This method is frequently used for its high productivity and ability to weld thick materials. Each of these welding methods has its own advantages and limitations, and the choice of method depends on factors such as the thickness of the steel coil, desired welding speed, weld quality, and application requirements.