ASTM A633 Gr.D/ A633 Grade D HSLA structural steel plates are featured products of BBN steel. The production process of ASTM A633 Gr.D/ A633 Grade D HSLA structural steel plate is as per below: raw material inspection, raw material pickling, raw material cutting, raw material heating, perforation process, rolling, heat treatment, property checking, inspection, packing.
ASTM A633 Gr.D/ A633 Grade D HSLA structural steel plates have minimum yield point of 345MPa in thicknesses up to 65mm, inclusive and 315MPa in thickness over 65mm to 100mm, inclusive.
ASTM A633 Gr.D/ A633 Grade D HSLA structural steel plates shall be normalized. Besides, thermomechanical control,or appropriate heat treatment may be applied upon the purchase according to client requirement and the project condition.