Pig iron
Malleable iron
Spheroidal graphite cast iron
High carbon steel
is a ductile material
can be easily forged or welded
cannot stand sudden and excessive shocks
all of these
Wrought iron is an iron alloy with very low carbon content with respect to cast iron. It is soft, ductile, magnetic, and has high elasticity and tensile strength. It can be heated and reheated and worked into various shapes.
air is burning out silicon and manganese
silicon and manganese has burnt and carbon has started oxidizing
the converter must be tilted to remove the contents of the converter
the brown smoke does not occur during the operation of a Bessemer converter
red flame does not occur during the operation of bessemer converter
Silica bricks
a mixture of tar and burnt dolomite bricks
either (a) or (b)
none of these