Excellent galvannealed steel sheet powdering resistance

Or it is restricted to a low concentration content of the steel in elements such useful Si and P to the improvement of the strength of the steel sheet to satisfy the required characteristics of the material, without causing an increase in cost due to complication of such a process, It provides superior galvannealed steel sheet powdering resistance during the press working. Crystal grains excellent galvannealed steel sheet 2.0 to 15.0% powdering resistance which are incorporated at a ratio in a cross section area ratio in the plating layer of the base steel.