Who has standard size Q265GNH bridge structural steel sheet stock

When talking about our team, it is hard not to mention our QC department (Quality Control). We have built strict qualitycontrol system to guarantee the steel quality. During the steel materials production, we have strict monitoring measures and indicators, and ensure no chemical composition, mechnical properties and so on technical problems for the steel materials Q265GNH bridge structural steel sheet. After production, our QC department will conduct another inspection regarding to the steel quantity, dimension, mark and so on points before delivery.

Q265GNH bridge structural steel sheet, No.45 seamless pipe belongs to high strength medium carbon steel, with certain plasticity and toughness, high strength and good machinability. Good comprehensive mechanical properties can be obtained by quenching and tempering treatment. In addition, the hardenability of No.45 seamless pipe is poor, and the water quenching is easy to produce cracks. After quenching and tempering, the small and medium-sized parts can obtain better toughness and higher hardness. For large parts (the section size is more than 80mm), normalizing treatment is appropriate. But the weldability of No.45 steel is poor. The weldment should be preheated before welding and annealed after welding to eliminate welding stress.

"SA572 Grade 55 [380] steel chemical composition(%)Carbon max.: 0.26Manganese max.: 1.35Phosphorus Max.: 0.030Sulfur Max.: 0.030Silicon max.: 0.40Q265GNH bridge structural steel sheet, SA572 Grade 55 [380] steel mechanical propertiesTensile strength min. MPa: 380Yield strength min. MPa: 485Elongation % min. in 200mm : 17Elongation % min. in 50mm : 20"

The main reference for structural design of steel structure engineering is the static and dynamic characteristics of the steel used under various actions, such as elasticity, plasticity, strength, toughness, fatigue and other mechanical properties. Therefore, the Q265GNH bridge structural steel sheet and so on steel used in the construction of steel structure engineering will limit its strength, plasticity, impact toughness and weldability. Steel structure engineering requires high tensile strength and yield point of steel. High yield point can reduce the cross-section of the component, so as to reduce the weight, save steel and reduce the cost. High tensile strength can increase the safety of the structure.

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We are committed to providing customers with high-quality services, high-precision products and efficient solutions. If you have any demand for Q265GNH bridge structural steel sheet steel plate, steel pipe and other products, please contact us directly. We are willing to provide you with relevant product knowledge and specific specifications for free. Welcome to purchase.