摘要 |
<p>PURPOSE: A high heat-resistance and cold-rolled steel sheet with excellent processability and heat resistance and a manufacturing method thereof are provided to extend the service life of the high heat-resistance and cold-rolled steel sheet. CONSTITUTION: A high heat-resistance and cold-rolled steel sheet with excellent processability and heat resistance comprises C 0.002~0.005 weight%, Nb 0.02~0.06 weight%, Co 0.02~0.20 weight%, Mn 0.10~0.35 weight%, Al 0.02~0.08 weight%, P 0.003~0.020 weight%, N 0.002~0.006 weight%, S less than 0.015 weight%, Fe and inevitable impurities.</p> |