Product Showcase
GB/T 1591 Carbon Steel Plates
SHH STEEL offers GB/T 1591-compliant high-strength low-alloy structural steel plates. GB/T 1591 specifies steels for plates, strips, and sections in general structures and engineering. Enhanced strength, corrosion resistance, certified quality, competitive prices, customizable. Trust SHH STEEL!
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Q355NC Steel Plate GB/T 1591 Supplier
GB/T 1591 Q355NC is normalized high-strength low-alloy plate with 355 MPa minimum yield and 0°C impact. SHH STEEL supplies Q355NC plate mill-direct for buildings, bridges and fabrication that names the N condition. This is not hot-rolled Q355C and not TMCP Q355MC.View More -
Q355NB Steel Plate GB/T 1591 Supplier
GB/T 1591 Q355NB is normalized high-strength low-alloy plate with 355 MPa minimum yield and +20°C impact. SHH STEEL supplies Q355NB plate mill-direct for buildings, bridges and fabrication that names the N condition. This is not hot-rolled Q355B and not TMCP Q355MB.View More -
Q460E Steel Plate GB/T 1591 Supplier
GB/T 1591 Q460E is hot-rolled high-strength low-alloy plate with 460 MPa minimum yield and −40°C impact. SHH STEEL supplies Q460E plate mill-direct for bridges, cold-region frames and outdoor fabrication. This is not the quenched-and-tempered GB/T 16270 grade.View More -
Q460D Steel Plate GB/T 1591 Supplier
GB/T 1591 Q460D is hot-rolled high-strength low-alloy plate with 460 MPa minimum yield and −20°C impact. SHH STEEL supplies Q460D plate mill-direct for bridges, buildings and cold-weather frames. This is not the quenched-and-tempered GB/T 16270 grade.View More -
Q460C Steel Plate GB/T 1591 Supplier
GB/T 1591 Q460C is hot-rolled high-strength low-alloy plate with 460 MPa minimum yield and 0°C impact. SHH STEEL supplies Q460C plate mill-direct for buildings, bridges, equipment frames and general fabrication. This is not the quenched-and-tempered GB/T 16270 grade.View More -
Q420E Steel Plate GB/T 1591 Supplier
GB/T 1591 Q420E is hot-rolled high-strength low-alloy plate with 420 MPa minimum yield and −40°C impact. SHH STEEL supplies Q420E plate mill-direct for bridges, cold-region frames and outdoor fabrication.View More -
Q420D Steel Plate GB/T 1591 Supplier
GB/T 1591 Q420D is hot-rolled high-strength low-alloy plate with 420 MPa minimum yield and −20°C impact. SHH STEEL supplies Q420D plate mill-direct for bridges, buildings, equipment frames and cold-weather fabrication.View More -
Q420B Steel Plate GB/T 1591 Supplier
GB/T 1591 Q420B is hot-rolled high-strength low-alloy plate with 420 MPa minimum yield and +20°C impact. SHH STEEL supplies Q420B plate mill-direct for buildings, bridges, equipment frames and general fabrication.View More -
Q355E Steel Plate GB/T 1591 Supplier
GB/T 1591 Q355E is hot-rolled high-strength low-alloy plate with 355 MPa minimum yield and −40°C impact. SHH STEEL supplies Q355E plate mill-direct for bridges, cold-region frames and outdoor fabrication.View More -
Q355D Steel Plate GB/T 1591 Supplier
GB/T 1591 Q355D is hot-rolled high-strength low-alloy plate with 355 MPa minimum yield and −20°C impact. SHH STEEL supplies Q355D plate mill-direct for bridges, buildings, equipment frames and cold-weather fabrication.View More -
Q355C Steel Plate GB/T 1591 Supplier
GB/T 1591 Q355C is hot-rolled high-strength low-alloy plate with 355 MPa minimum yield and 0°C impact. SHH STEEL supplies Q355C plate mill-direct for buildings, bridges, equipment frames and general fabrication.View More -
Q355B Steel Plate GB/T 1591 Supplier
GB/T 1591 Q355B is hot-rolled high-strength low-alloy plate with 355 MPa minimum yield and +20°C impact. SHH STEEL supplies Q355B plate mill-direct for buildings, bridges, equipment frames and general fabrication.View More
GB/T 1591 Carbon Steel Plates
High-Strength Low Alloy Plates
SHH STEEL, a leading High-Strength Low Alloy Plates exporter, produces and exports HSLA steel plates for construction, bridges, and automotive applications. Our plates, like ASTM A572 Grade 50, offer superior strength-to-weight ratios and excellent weldability, meeting global standards. With a 5,000-ton inventory, we ensure 3–5 day delivery for in-stock items, supported by SGS/TUV inspections and mill certificates. Trust SHH STEEL for durable high-strength low alloy plates and custom solutions for structural projects.
High-Strength Low Alloy Plates
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