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FAQ

Steel coils are used in the manufacturing of construction formwork to create the framework and support structures needed for pouring concrete. The steel coils are typically shaped and cut into various sections to form the desired shape and size of the formwork. These coils provide strength, durability, and stability, ensuring that the formwork can withstand the weight and pressure of the concrete during the construction process.

I personally don't believe the story of 8 guys who flew small planes can navigate passenger jets into buildings hundreds of miles away with that precision. It just doesn't make sense.I am wondering what the story surrounding the molten steel was, how could molten steel have been produced when fuel from the planes wasn't hot enough (it melts at 2850 degrees)?

that's just it: there wasn't very much molten steel for the very reason you point out. Jet fuel burns at 800° to 1500°F. This is not hot enough to melt structural steel. However, engineers say that for the World Trade Center towers to collapse, their steel frames didn't need to melt, they just had to lose some of their structural strength. Steel will lose about half its strength at 1,200 degrees F. The steel will also become distorted when heat is not a uniform temperature. after the collapse, a LOT of folks took a look at the remains. the result was the conclusion that the fire caused the central core of the building to weaken. When the floors collapsed one on top of the other, the weight was too much for the weaked core to bear, causing the result we are all familiar with. hope this helps

The common methods of slitting steel coils include rotary slitting, multiblade slitting, and shearing.

Steel coils are used in the production of steel nails as they serve as the primary raw material. These coils are unwound and fed into a nail-making machine, where they are cut into the desired length and shaped into nails.

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.

I need to identify a metal. It is rusty so I suspect it is either iron or steel. Since they both have similar densities and are magnetic, how do I tell the difference betweeen steel and iron?

Steel is a refined, alloyed metal that is mostly iron. Iron, in a chemistry sense os simply Fe. In an industrial sense iron is pig iron commonly saturated with carbon, up to 4.5% and has other impurities like sulfur. Pig iron is brittle and should break rather easily, and bend very little. After a piece is broken look at the crystal structure, you should see rather small crystals. Most steel made for car body's, washing machines, file cabinets, low grade bolts and nuts etc. should flex and bend before breaking. Most steel made for things like cutting tools, axles, etc, is hardened and will chip and break rather than bend. Also you can try to heat the piece to a glowing orange temperature. It must be very hot. Cool it. If there is a lot of white flake scale on the piece it is impure and probably iron of some sort. In the end the only way exactly tell is have an analysis done and look at the chemistry.

I want to make a stock removal knife, but I am really confused about what steel to use. I am just a beginner but I read o1 steel is great? Also I am kind of on a budget.

O-1 is an excellent steel. If you've never made a knife before find an old file and use it. My first knives weren't that good, it took a little practice to get the geometry right so be prepared to burn some steel. The advantage of a file is it is already hardened, unless you have a torch or forge that will be near imposable for you to do. The most important thing in knife making is the heat treating. The best steel wont perform like it's supposed to. If you decide to use a file grind your blade out, keep the steel cool; do not let it get any color in it (brown, blue, purple) as this destroys the temper. When your finished put the blade in the oven at 400 deg for an hour. It should have a good hardness for a knife then. As for me, I use old car springs(5160), saw blades(L-6) for many of my blades, Good luck.

The safety regulations for steel coil production facilities typically include measures such as proper training and certification for employees, regular equipment inspections and maintenance, use of personal protective equipment, implementation of fire prevention and evacuation plans, adherence to hazardous material handling protocols, and compliance with occupational health and safety standards. These regulations aim to minimize the risk of accidents, injuries, and environmental hazards within the facility.