Product Showcase
GB/T 16270 Carbon Steel Plates
SHH STEEL supplies GB/T 16270-2009 high-strength structural steel plates in the quenched and tempered condition as Factory-Direct Supply and export. This standard replaces GB/T 16270-1996 and covers Q&T plates up to 150 mm for welded structures, construction machinery, bridges and heavy equipment. Typical grades include Q460, Q500, Q550, Q620, Q690, Q800, Q890 and Q960 in quality C, D, E and F. Closely related European grades are S460QL, S690QL, S890QL and S960QL. Competitive mill price, cut-to-size service, fast delivery and full MTCs.
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Q690F QT Carbon Steel Plate GB/T 16270 Supplier
GB/T 16270 Q690F is quenched-and-tempered carbon structural plate with 690 MPa minimum yield and −60°C impact toughness. SHH STEEL supplies Q690F QT plate mill-direct for arctic frames, mining equipment and cold-region fabrication.View More -

Q690E QT Carbon Steel Plate GB/T 16270 Supplier
GB/T 16270 Q690E is quenched-and-tempered carbon structural plate with 690 MPa minimum yield and −40°C impact toughness. SHH STEEL supplies Q690E QT plate mill-direct for cranes, mining frames and cold-region fabrication.View More -

Q690D QT Carbon Steel Plate GB/T 16270 Supplier
GB/T 16270 Q690D is quenched-and-tempered carbon structural plate with 690 MPa minimum yield and −20°C impact toughness. SHH STEEL supplies Q690D QT plate mill-direct for cranes, mining frames and cold-weather fabrication.View More -

Q690C QT Carbon Steel Plate GB/T 16270 Supplier
GB/T 16270 Q690C is quenched-and-tempered carbon structural plate with 690 MPa minimum yield and 0°C impact toughness. SHH STEEL supplies Q690C QT plate mill-direct for cranes, mining frames and heavy fabrication.View More -

Q620F QT Carbon Steel Plate GB/T 16270 Supplier
GB/T 16270 Q620F is quenched-and-tempered carbon structural plate with 620 MPa minimum yield and −60°C impact toughness. SHH STEEL supplies Q620F QT plate mill-direct for arctic frames, mining equipment and cold-region fabrication.View More -

Q620E QT Carbon Steel Plate GB/T 16270 Supplier
GB/T 16270 Q620E is quenched-and-tempered carbon structural plate with 620 MPa minimum yield and −40°C impact toughness. SHH STEEL supplies Q620E QT plate mill-direct for cranes, mining frames and cold-region fabrication.View More -

GB/T 16270 Q620D QT Carbon Steel Plate Supplier
GB/T 16270 Q620D is quenched-and-tempered carbon structural plate with 620 MPa minimum yield and −20°C impact toughness. SHH STEEL supplies Q620D QT plate mill-direct for cranes, mining frames and cold-weather fabrication.View More -

Q620C QT Carbon Steel Plate GB/T 16270 Supplier
GB/T 16270 Q620C is quenched-and-tempered carbon structural plate with 620 MPa minimum yield and 0°C impact toughness. SHH STEEL supplies Q620C QT plate mill-direct for cranes, mining frames and heavy fabrication.View More -

GB/T 16270 Q550F QT Carbon Steel Plate Supplier
GB/T 16270 Q550F is quenched-and-tempered carbon structural plate with 550 MPa minimum yield and −60°C impact toughness. SHH STEEL supplies Q550F QT plate mill-direct for arctic frames, mining equipment and cold-region fabrication.View More -

Q550E QT Carbon Steel Plate GB/T 16270 Supplier
GB/T 16270 Q550E is quenched-and-tempered carbon structural plate with 550 MPa minimum yield and −40°C impact toughness. SHH STEEL supplies Q550E QT plate mill-direct for cranes, mining frames and cold-region fabrication.View More -

Q550D QT Carbon Steel Plate GB/T 16270 Supplier
GB/T 16270 Q550D is quenched-and-tempered carbon structural plate with 550 MPa minimum yield and −20°C impact toughness. SHH STEEL supplies Q550D QT plate mill-direct for cranes, mining frames and cold-weather fabrication.View More -

Q550C QT Carbon Steel Plate GB/T 16270 Supplier
GB/T 16270 Q550C is quenched-and-tempered carbon structural plate with 550 MPa minimum yield and 0°C impact toughness. SHH STEEL supplies Q550C QT plate mill-direct for cranes, mining frames and heavy fabrication.View More
GB/T 16270 Carbon Steel Plates

Structural Steel Plates
SHH STEEL, a top Structural Steel Plates exporter, produces and exports structural steel plates for buildings, bridges, and infrastructure. Our plates, such as ASTM A36, deliver exceptional strength and weldability, meeting global standards. With a 5,000-ton inventory, we provide 3–5 day delivery for in-stock items, backed by SGS/TUV inspections and mill certificates. Trust SHH STEEL for construction steel plates and custom solutions for large-scale structural projects.
Structural Steel Plates
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