Q:I mean about if I had a piece of metal, how can i decide that's iron or steel?Sorry for bad English.

There are literally hundreds and hundreds of different commercial steel alloys and a good number of iron alloys so... it depends. Technically, steel is any alloy that is mostly Fe with some amount of carbon. Even if you have access to the necessary lab equipment, CTE (coef of thermal expansion) and specific heat are not very straight forward tests. There are, of course, chemical analysis instruments for measuring C content in steels so, if you really need to know, you can spend money at commercial lab that does these tests. One quick test to judge C content... touch the metal to a grinding wheel, higher C content produces more sparks. To calibrate the way this looks, compare the sparks from a drill bit (usually 1090 steel so 0.9 wt% C) to a steel nail (low C steel). Unfortunately, the difference in sparking between steels with pretty low C content and a piece of iron will not be very dramatic. Of course, iron might mean Cast Iron and, again, there are a good number of commercial cast iron alloys and there are 4 basic types of cast iron alloys and they contain high amounts of C.

Q:What type of metal is T10 tool steel?

Carbon Tool Steel usually in the form of forged bar stock. Steel Grades for tool steel can be any of the following (depending on the application) T10/1.1645 SK3/SK4/W1A-91/2/ TC105/y10/1880/BW1B T10A/1.1545/y10A/1880 Standards are published by: DIN, JIS, ASTM, AISI, BS, SS, ISO, TOCT, GB Doug

Q:What is a steel coil?

A steel coil is a coiled sheet of steel that is typically used in various industries for manufacturing purposes. It is a continuous length of steel that has been wound into a coil shape, making it easier to transport and store. Steel coils are commonly used in the automotive, construction, and appliance industries, among others, for applications such as making metal parts, forming structures, and producing steel components.

Q:What are the common coil sizes available for steel coils?

The common coil sizes available for steel coils vary, but some standard sizes include 36 inches, 48 inches, and 60 inches in width, with coil lengths ranging from 1000 feet to 5000 feet. However, it is important to note that coil sizes can be customized according to specific requirements and applications.

Q:What are the common coil diameters available for steel coils?

The common coil diameters available for steel coils typically range from 24 inches to 72 inches.

Q:does he use a nylon guitar or steel?

Clearly it's nylon strings. Didn't you ask this before? You can hear the difference in tone, and the construction of the guitar is different than a steel stringed model.

Q:What are the common methods of protecting steel coils from corrosion during storage?

There are several common methods used to protect steel coils from corrosion during storage. These methods are employed to prevent moisture and other environmental elements from coming into contact with the steel coils, which can lead to corrosion. 1. VCI (Volatile Corrosion Inhibitor) Packaging: VCI packaging is a widely used method for protecting steel coils. VCI materials are incorporated into the packaging, such as plastic bags or films, which release a vapor that forms a protective layer on the surface of the steel coils. This layer prevents moisture and other corrosive agents from reaching the steel, thus inhibiting corrosion. 2. Oil Coating: Another widely used method is to apply a thin layer of oil on the surface of the steel coils. The oil acts as a barrier, preventing moisture and oxygen from coming into contact with the steel. This method is particularly effective for long-term storage or transportation of steel coils. 3. Desiccants: Desiccants, such as silica gel packets, can be placed inside the packaging to absorb any moisture that may be present. By reducing the humidity levels inside the packaging, the risk of corrosion is minimized. This method is often used in conjunction with VCI packaging or oil coating. 4. Proper Ventilation: Adequate ventilation is necessary to prevent the accumulation of moisture around the steel coils during storage. By allowing air to circulate freely, it helps to reduce the humidity levels and prevents the formation of condensation, which can lead to corrosion. 5. Controlled Environment: Storing steel coils in a controlled environment can be an effective way to prevent corrosion. This involves maintaining a constant temperature and humidity level, which are not conducive to corrosion. Temperature and humidity control can be achieved through the use of air conditioning or dehumidification systems. It is important to note that the specific method or combination of methods used to protect steel coils will depend on various factors, such as the duration of storage, the environmental conditions, and the specific requirements of the steel coils. Regular inspections and maintenance are also crucial to ensure the ongoing protection of the steel coils from corrosion.

Q:(I'm not sure if steel is in fact a mineral)But I want to know if .. Last say topaz is stronger/harder then steel

Mineral ≠ metal Strong ≠ hard Even after you learn what the words mean, the only straight answer is still Look and see.

Q: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.

Q:i have a white spot on my stainless steel stove, its on the part behind the burners where the oven controls are, does anyone know what it may be and how to remove it. i have tried soap and water and stainless steel cleaner but neither worked. thanks!

Barkeeper's Friend is the bomb for a metal and fiberglass cleaner, if it can be removed, it will remove it. I have no clue what it is thats on there.