Painted Galvanized Steel

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Hi, I need to know why stainless steel is rust proof please tell me its for my science project. :)
Stainless steel is characterized by the presence of chromium. Chromium oxidizes like aluminium does, by passivation, that is, it forms a though oxide layer that sticks to the metal underneath and protects it. On the other hand, iron oxidizes by turning into rust, which is a brittle material that flakes off, exposing the metal under for more oxidation. Now, what happens when you have a metal that is made of both iron and chromium? Any iron on the surface will rust and flake off (at the atomic level, so do not expect to see much rusting) until the surface is a pure chromium layer (again, we are talking about a layer that is a few atoms thick) and that chromium will oxidize but stay put. Then rust then has no way of getting deeper, and the metal will remain clean.
We have a stain from a pot or bowl in our new expensive stainless steel sink. It looks like a water mark that happens when you leave a glass on a table without a coaster. It's a mark in the shape of the bowl or pot that was there. We left it there overnight:( It's not rust either. Help!
in your super market their is a pad that is green and is called scooth bright use it on the stain and it will remve it
does he use a nylon guitar or steel?
The correct term for what you are looking at is a classical guitar. Classical guitars always have nylon strings (steel strings will tear them apart). There is no such thing as a nylon guitar, and if there were, I don't think it would sound very good, although Mario Maccaferri did make some plastic ones that are quite collectible now. Steel guitar - as opposed to steel-string guitar which is what I think you mean - is the name of an entirely different instrument that doesn't look much like a guitar at all. There are also steel-bodied guitars which have a mechanical amplification system built in. However, normal classical and steel-string guitars are made of wood. A classical guitar usually has a slotted headstock with wide rollers, a wide uncambered fretboard, a 12-fret neck, an ornate soundhole rosette, no pickguard, a tied bridge with a straight saddle, and fan bracing. A steel-string guitar usually has a solid headstock or a slotted headstock with narrow rollers, a narrow cambered fretboard, a 14- or 12-fret neck, a simple rosette, a pickguard, a pin bridge with a slanted saddle, and X bracing.
Does a magnet stick to galvinied steel?
yes it does. The steel below the galvanized coating still has a relative high carbon content and magnets stick to it. Magnets do not stick to stainless steel very well though. There is a weak attraction there. If I recall correctly this is due to the relatively low carbon content and the higher content of chromium.
full discription about hydrolics used in steel melting shop with hyd valve is use in thair circit too ?
The correct spelling is hydraulics. I haven't heard the term steel melting shop you probably means a foundry or a steel mill The most obvious example i can think of is hydraulic-operated fork lifts. Hydraulic cylinders are used to lift the forks and to tilt them upwards or downwards. The valves are coneccted to levers next to the steering wheel. Hydraulic pressure is supplied by a hydraulic pump driven by a propane or diesel engine. In some forklift designs the wheels are also not connected directly to the engine, but driven by hydraulic motors. There are also a large variety of machines used in steel mills and metalworking companies to cut and shape metal parts. for example, press brakes, plate cutting shears, stamping presses, hole punch machines, drawing presses, etc. These types all operate in much the same basic way. They use a very large cylinder or group of cylinders to apply many tons of force to different kinds of metal working tools.
The main applications of steel coils include manufacturing of automobiles, construction materials, appliances, machinery, and various industrial sectors. They are also used in the production of pipes, tubes, roofing, and packaging materials.
There are several different types of steel coil recoiling methods, including oscillating recoiling, flying shear recoiling, and rotary recoiling.
Steel coils are used in the manufacturing of packaging materials by being transformed into various forms, such as sheets or strips, that can be used for packaging products. These coils are often processed through cutting, shaping, and coating techniques to create packaging materials like cans, drums, or containers. The durability and strength of steel make it an excellent choice for packaging materials, ensuring the safe transportation and preservation of goods.