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See Chinese contents: GB/T 34560.4-2017 GB/T 34560.4-2017: Structural steels -- Part 4: Technical delivery conditions for high yield strength quenched and tempered structural steel plates
This Part of GB/T 34560 specifies the terms and definitions, grade representation method, ordering content, dimension, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of high yield strength quenched and tempered structural steel plates. This Part applies to quenched and tempered steel plates with a nominal thickness of 3 mm to 150 mm and an upper yield strength of 460 MPa to 1300 MPa for welded or bolted structures.
