Carbon steel Callister and Rethwisch (2010) classified iron alloys based on carbon composition into 3 groups: iron with carbon content <0.008%, steel with a carbon content of 0.008% C to 2.14% C and cast iron with carbon content> 2.14%. The steels were subdivided into 3 groups: low carbon steel, medium carbon steel, and high carbon steel. low carbon steel Low carbon steels generally contain less than about 0.25% C and are unresponsive to heat treatment intended to form martensite. Reinforcement can be achieved by cold work. The microstructure consists of ferrite and pearlite constituents so that the alloy is relatively[…]
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