1538 degrees Celsius.
During the manufacture of Cast Iron, an intermediate product is Pig Iron. Further processing results in Cast Iron.
2,150 F
1535 degree melting of iron
iron starts melting
Melting an iron rod is a physical change
You can buy many products made of cast iron (cookware, pipes, etc.) but it could be hard to buy cast iron itself, because it needs 1,150 to 1,200°C (2,102 to 2,192°F) to achieve a melting point and to liqufy.
This is an interesting question, and I have made a research for it. However, it is difficult to answer it by short words. Cast iron is made from remelting pig iron, usually with some quantities of scrap iron, scrap steel and some alloys, such as Cr, Ni, Mo and Cu according to the different requirements. Depending on the specific application, iron foundries reduce the carbon and silicon content to the desired levels from 2 to 3.5% and 1 to 3% respectively. Other alloys and elements are also added during melting process according to the different requirements. With the different melting and inoculation processes, the different cast irons will be produced. There are several main types of cast iron, such as white cast iron, grey cast iron, ductile cast iron, malleable cast iron. For the detail information about them, you can refer to the related links below. I wrote this article, so I bet it will be helpful for you to comprehensively learn about cast iron.
The melting point of iron (nanopowder or not) is 1 538 0C.
I am not aware of a cast iron rod for oxy acetylene welding, I am for arc welding, For cast, I use a brazing rod, a brass or copper alloy, but what do I know. If there is a cast rod available, it would be the same process, get the cast you are welding hot almost to the point of melting, bring in the rod, heat it at the same place and bring both to a melting point. Work from that point along the crack or joint you are welding. ----------------------------------------------------------------------------------------------------------------- You need not use brazing rod for case iron welding. You get arc welding electrodes for cast iron. Use appropriate grade of rod for your case iron under welding.
Cast iron is a type of iron that cannot be easily welded due to its high carbon content, which can lead to cracking during the welding process. Additionally, cast iron has a high melting point and poor ductility, making it challenging to weld compared to other types of iron.
Melting of any element, including iron, is a physical change. Melting is just a transition between states of matter, from solid to liquid. The solid state of iron can be regained if the liquid iron is cooled; so this denotes a physical change. There is no change to the chemical composition of iron during melting.
It has austenitic matrix with very good heat and corrosion resistance properties upto 1500 F