Question

In: Mechanical Engineering

1.       What problems are associated with oxygen or other gases that are dissolved in molten steel? 2.       What...

1.       What problems are associated with oxygen or other gases that are dissolved in molten steel?

2.       What is considered a low-carbon steel? Medium-carbon? High-carbon?

can you please type the answer. thanks

Solutions

Expert Solution

1) Oxygen generally reacts with carbon present in steel during solidification and forms carbon monoxide and thus blow holes in cast. Resulting dangerous carbon monoxide may boil inside the laddle. In addition high oxygen level may create high oxide inclusions that are harmful for steel products.

Similarly due to entrapment of hydrogen and nitrogen, ductility of steel is effected.

2) Low carbon steel: when carbon content in steel is less than 0.3 percent than it is called low carbon steel

Medium carbon steel: when carbon content in steel is 0.3 -0.8 percent than it is called as medium carbon steel

High carbon steel: when carbon content in steel is 0.8-1.5 percent than it is called as high carbon steel.


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