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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Q460ND Steel Plate GB/T 1591 Supplier
GB/T 1591 Q460ND is normalized high-strength low-alloy plate with 460 MPa minimum yield and −20°C impact. SHH STEEL supplies Q460ND plate mill-direct for bridges, buildings and cold-weather frames that name the N condition. This is not hot-rolled Q460D, not TMCP Q460MD, and not GB/T 16270 QT plate.View More -
Q460NC Steel Plate GB/T 1591 Supplier
GB/T 1591 Q460NC is normalized high-strength low-alloy plate with 460 MPa minimum yield and 0°C impact. SHH STEEL supplies Q460NC plate mill-direct for bridges, buildings and fabrication that names the N condition. This is not hot-rolled Q460C, not TMCP Q460MC, and not GB/T 16270 QT plate.View More -
Q420NE Steel Plate GB/T 1591 Supplier
GB/T 1591 Q420NE is normalized high-strength low-alloy plate with 420 MPa minimum yield and −40°C impact. SHH STEEL supplies Q420NE plate mill-direct for bridges, cold-region frames and outdoor fabrication that names the N condition. This is not hot-rolled Q420E and not TMCP Q420ME.View More -
Q420ND Steel Plate GB/T 1591 Supplier
GB/T 1591 Q420ND is normalized high-strength low-alloy plate with 420 MPa minimum yield and −20°C impact. SHH STEEL supplies Q420ND plate mill-direct for bridges, buildings and cold-weather frames that name the N condition. This is not hot-rolled Q420D and not TMCP Q420MD.View More -
Q420NC Steel Plate GB/T 1591 Supplier
GB/T 1591 Q420NC is normalized high-strength low-alloy plate with 420 MPa minimum yield and 0°C impact. SHH STEEL supplies Q420NC plate mill-direct for buildings, bridges and fabrication that names the N condition. This is not hot-rolled Q420C and not TMCP Q420MC.View More -
Q420NB Steel Plate GB/T 1591 Supplier
GB/T 1591 Q420NB is normalized high-strength low-alloy plate with 420 MPa minimum yield and +20°C impact. SHH STEEL supplies Q420NB plate mill-direct for buildings, bridges and fabrication that names the N condition. This is not hot-rolled Q420B and not TMCP Q420MB.View More -
Q390NE Steel Plate GB/T 1591 Supplier
GB/T 1591 Q390NE is normalized high-strength low-alloy plate with 390 MPa minimum yield and −40°C impact. SHH STEEL supplies Q390NE plate mill-direct for bridges, cold-region frames and outdoor fabrication that names the N condition. This is not hot-rolled Q390E and not TMCP Q390ME.View More -
Q390ND Steel Plate GB/T 1591 Supplier
GB/T 1591 Q390ND is normalized high-strength low-alloy plate with 390 MPa minimum yield and −20°C impact. SHH STEEL supplies Q390ND plate mill-direct for bridges, buildings and cold-weather frames that name the N condition. This is not hot-rolled Q390D and not TMCP Q390MD.View More -
Q390NC Steel Plate GB/T 1591 Supplier
GB/T 1591 Q390NC is normalized high-strength low-alloy plate with 390 MPa minimum yield and 0°C impact. SHH STEEL supplies Q390NC plate mill-direct for buildings, bridges and fabrication that names the N condition. This is not hot-rolled Q390C and not TMCP Q390MC.View More -
Q390NB Steel Plate GB/T 1591 Supplier
GB/T 1591 Q390NB is normalized high-strength low-alloy plate with 390 MPa minimum yield and +20°C impact. SHH STEEL supplies Q390NB plate mill-direct for buildings, bridges and fabrication that names the N condition. This is not hot-rolled Q390B and not TMCP Q390MB.View More -
Q355NE Steel Plate GB/T 1591 Supplier
GB/T 1591 Q355NE is normalized high-strength low-alloy plate with 355 MPa minimum yield and −40°C impact. SHH STEEL supplies Q355NE plate mill-direct for bridges, cold-region frames and outdoor fabrication that names the N condition. This is not hot-rolled Q355E and not TMCP Q355ME.View More -
Q355ND Steel Plate GB/T 1591 Supplier
GB/T 1591 Q355ND is normalized high-strength low-alloy plate with 355 MPa minimum yield and −20°C impact. SHH STEEL supplies Q355ND plate mill-direct for bridges, buildings and cold-weather frames that name the N condition. This is not hot-rolled Q355D and not TMCP Q355MD.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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