Different between s460q, s460ql and s460ql1high yield strength structural steel sheet

S460Q, S460QL, and S460QL1 are three different grades of steel, developed to meet the requirements of various applications. All three are high-strength quenched and tempered steels, offering excellent strength, as well as good weldability and formability. Each grade has its unique characteristics, including carbon content, dimensions, and hardness.

S460Q: Minimum yield strength of 460 MPa, tensile strength 550–720 MPa, carbon content approximately 0.20–0.22%, impact toughness ≥60 J at -40°C, thickness range 6–150 mm, width 1500–4050 mm, length 3000–15000 mm. Suitable for bridges, cranes, and general load-bearing structures.

S460QL: Minimum yield strength of 460 MPa, tensile strength 590–770 MPa, carbon content approximately 0.16%, impact toughness ≥70 J at -40°C, thickness range 6–120 mm, width 1500–4050 mm, length 3000–12000 mm. Ideal for high-stress environments such as offshore structures and mining equipment.

S460QL1: Minimum yield strength of 460 MPa, tensile strength 600–780 MPa, carbon content approximately 0.12%, impact toughness ≥80 J at -40°C, thickness range 6–100 mm, width 1500–3000 mm, length 3000–12000 mm. Suitable for extreme low-temperature or special high-stress applications.

These specifications demonstrate that all three steel grades maintain high strength while providing excellent toughness and weldability, meeting the diverse requirements of engineering projects in terms of load-bearing capacity, durability, and fabrication adaptability.

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