BaoSteel Automotive Advanced High Strength Steels 1200 hot drawing PH or B steel microstructure: Ferrite and pearlite (before heat treatment), martensite (after heat treatment)

BaoSteel Automotive Advanced High Strength Steels HC450/950TW common TWIP cold rolled steel microstructure: with single-phase austenite.

BaoSteel Automotive Advanced High Strength Steels HD720/950CPD+Z hot-dip galvanized CP steel microstructure: mainly based on bainite and (or) ferrite matrix, and usually distributed small amounts of martensite, retained austenite and pearlite structur