To meet the demand of the pressure vessel industry,Baosteel has developed an S11306+SA516Gr70 roll-bonded clad steel plate. Comprehensive inspections of the composition,microstructure,and properties are performed to systematically evaluate the steel plate in normalized state and normalized+stress relieved state. The results show the cladding interface of the S11306+SA516Gr70 roll-bonded clad steel plate has high shear strength,and the base metal has good mechanical properties. The performance is fully consistent with the technical requirements of the roll-bonded clad steel plate for pressure vessels. To meet the demand of the pressure vessel industry, Baosteel has developed an S11306 + SA516Gr70 roll-bonded clad steel plate. Comprehensive inspections of the composition, microstructure, and properties are performed to systematically evaluate the steel plate in normalized state and normalized + stress relieved state. The results show the cladding interface of the S11306 + SA516Gr70 roll-bonded clad steel plate has high shear strength, and the base metal has good mechanical properties. The performance is fully consistent with the technical requirements of the roll-bonded clad steel plate for pressure vessels.