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FAQ

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.

Steel coils are used in the manufacturing of intake manifolds as they are shaped and formed into specific designs to create the inner structure of the manifold. The coils are typically cut, bent, and welded together to create the desired shape and size of the intake manifold, which then allows for the proper flow of air and fuel mixture into the engine cylinders.

Steel coils are used in the manufacturing of solar panels as they serve as the primary material for constructing the framework and support structure. They provide strength and stability to the panels, ensuring durability and longevity in various weather conditions. Additionally, steel coils are often used to create the mounting systems that hold the solar panels in place, allowing for easy installation and efficient utilization of solar energy.

There are several methods of embossing steel coils, including roller embossing, heat embossing, and laser embossing. Roller embossing involves using engraved rollers to press a pattern onto the steel surface. Heat embossing uses heat and pressure to create raised designs on the steel coils. Laser embossing utilizes laser technology to etch intricate patterns onto the steel surface. These methods allow for the creation of unique textures and designs on steel coils for various applications.

hi, i have a steel block with an unussual composition. does anyone know if this is any particular type?c- .6%, si - .33%, mn - .6%, sulphur - .014%, phosphorous - .013%, ni - 1.69%, Cr, 1.07%, molybdenum - .67%

You have opened a can of worms. Specific types of steel vary not only by composition but by the way they were made, their physical properties and their morphology (microscopic structure). The composition you have given would fit for High Carbon Steel and Medium Carbon Steel. Go to the reference I've given, it allows you to put in 3 of the components of your alloy and then it gives you a list of possibilities. You can open each candidate individually and see the full composition. Hours of fun. :)

Steel coils are used in the production of electrical resistors as they provide a conductive path for the flow of electric current. The resistance of the coil is determined by its length, thickness, and material properties, allowing it to regulate the flow of electricity in various applications such as heating elements and electronic circuits.

Steel coils are used in the manufacturing of telecommunications equipment as they serve as a crucial component for the fabrication of various parts and structures. These coils are commonly used to create cabinets, enclosures, and racks that house and protect telecommunications devices such as servers, switches, and routers. Additionally, steel coils are utilized in the construction of antenna towers and other supporting structures, providing the necessary strength and stability for the equipment.

does regular steel rust? or is it all the same.

There are dozens of types of steels, some stainless and some not. They differ a lot in their chemical composition and in how they're made (especially heat treating methods). They all vary in their strength, working properties and corrosion resistance. Regular steel (technically carbon steel--mostly iron, with a little bit of carbon) rusts quite badly if unprotected and in the right environmental conditions i.e. humidity/moisture. The iron in regular steel reacts with oxygen to form iron oxide--the orange/red stuff we call rust. Iron oxide is a loose and porous material which provides no protection to the underlying steel, which is why rusted regular steel will continue to rust. Stainless steel, in addition to containing iron and carbon, contains chromium as a component--and it's the chromium that is important for corrosion protection. To be fair, even stainless steel rusts but what happens is that it's the chromium that reacts with oxygen to create a microscopically-thin layer of chromium oxide. This layer is very tough and actually protects the uncorroded steel, preventing further corrosion. Broadly speaking, the higher the chromium content, the more corrosion resistant the stainless steel.