10 plastic resistance, good toughness, easy hot and cold forming process, normalizing or cold after a good cutting performance, excellent weldability, no temper brittleness, hardenability and hardenability are poor.

Manufacturing requirements discontinuity, high toughness parts, such as auto body, reservoirs, deep drawing utensils, pipes, gaskets, etc., can be used as cold-rolled and cold, cold heading, cold, hot forming and other processes, also be used as the heart of the Ministry of intensity is not high carburizing, carbonitriding parts.