Ferrous Materials and Non-Ferrous Metals and Alloys 1 introduction

2.5.5 Chilled Cast Iron

Quick cooling is generally known as chilling and the iron so produced is “chilled iron”.

The outer surface of all castings always gets chilled to a limited depth about (1 to 2 mm)

during pouring and solidification of molten metal after coming in contact with cool sand

of mould. Sometimes the casting is chilled intentionally and some becomes chilled

accidentally to a small depth.

Chills are employed on any faces of castings which are required to be hard to

withstand wear and friction. Chilled castings are used in producing stamping dies and

crushing rolls railway, wheels cam followers, and so on.