This is the speed for sound in iron grey cast iron may be higher than this
As for the most of rough surfaces of cast iron, the color is grey. Such as normal grey cast iron and ductile iron. The ductile iron will be more white than grey cast iron. There are few types of vermicular cast iron, which are black. The white cast iron will show white color. So, cast iron has different color, such as grey, black, white according to different types. However, most of cast iron castings need surface coating, such as painting or electroplate, so they will show different colors than their own.
grey cast iron
Cast iron includes several types. Normally, it can be divided into grey cast iron, ductile cast iron, malleable iron, and alloy cast iron. So, their iron element content is also different. As for grey cast iron, it has Carbon (C) 2.8 - 3.9%, Silicon (Si) 1.1 - 2.6%, Manganese (Mn) 0.5 - 1.2%, P ≤ 0.3%, S ≤ 0.15%. Except of little other impurities, others will be iron element. As for ductile cast iron, you can refer to the article "Ductile Iron Chemical Components" at the related links listed below.
Iron, cast iron is just iron
Light grey.
Grey cast ironWhite cast ironMalleable cast ironDuctile cast iron
grey
As for the most of rough surfaces of cast iron, the color is grey. Such as normal grey cast iron and ductile iron. The ductile iron will be more white than grey cast iron. There are few types of vermicular cast iron, which are black. The white cast iron will show white color. So, cast iron has different color, such as grey, black, white according to different types. However, most of cast iron castings need surface coating, such as painting or electroplate, so they will show different colors than their own.
Cast iron mainly includes grey cast iron, ductile cast iron and malleable cast iron. As for ductile iron, it has very wide application, such as Pressure pipes and fittings, Automotive applications, Agriculture, road and construction applications, General engineering applications. As for the specific application of ductile iron, grey iron and malleable cast iron, please refer to the links below.
Cast Iron does not rust or corrode as steel can
The black color of cast iron stoves can turn grey due to a process called oxidation. This occurs when the iron is exposed to oxygen and moisture, leading to the formation of iron oxide, which appears as a grey patina on the surface. Regular maintenance and cleaning can help prevent this color change.
Cast iron is a mixture of primarily iron (90%+), carbon (2.0 to 4.0%), silicon (1.0 to 2.4%), manganese (.45 to .65%), sulfur (.06 to .15%), and sometimes (.10 to 1.0%) copper, molybedunum, chrome, nickel, and even .03 to .06% tin. The microstructure for general use cast gray iron should be Type 'A' flake graphite in sizes 3 to 5 in a fine pearlite matrix. For the material grades and application of grey cast iron, please refer to the below link "Grey Cast Iron".
1.water 2.air 3.mercury 4.iron
Because grey cast iron is not malleable, it has a crystalline structure that cannot be reformed cold.
grey cast iron
cast iron, grey iron. so its depend on u taht what strength u wants.
One source on the Internet (http://www.bamr.co.za/velocity%20of%20materials.shtml) has the speed of sound in various glasses between 4260 and 6800 m/s and that source has the speed of sound in steels 5900 to 6100 and cast iron 3500 to 5600 So according to that source the speed of sound is comparable in both iron and glass with the variations giving lower speeds in some iron compounds/manufacturing states then the lowest speeds in glass and some glasses having higher speeds than steels.