offers spring steel flats. during the serves cycle, leaf spring must not exceed certain level of stress to avoid settling or premature failure. therefore, the choice of chemical composition of the spring steel should be such to get sufficient harness to bear the required level of stress. spring steel flats are available in various chemical compositions of alloy steel. types carbon spring steelsilicon manganese spring steelchromium vanadium spring steel details of grades and there chemical composition can bs provided on request. size of flatswidth 44mm to 130mmthickness 6mm to 22mm.