Q690D steel plate is a brand of national standard quenched and tempered high-strength steel plate, and Q690D steel plate belongs to structural steel. Q is the expression of yield strength, 690 is its minimum yield value, and D represents the grade. Q690D steel plate also has higher yield strength and tensile strength. Corresponding materials include Q690C steel plate, Q690D steel plate, Q690E steel plate, Q690F steel plate, etc., all of which are of the same material but of different grades.
At the same time, because Q690D steel plate has high strength, good plasticity and toughness, and good weldability, Q690D steel plate is used in power towers, various lifting cranes, heavy vehicles, oil derricks, high-temperature fans, large electric shovels, dump trucks and drilling rigs, coal mine hydraulic pressure Manufacturing of various large-scale engineering structural components and engineering machinery industries such as brackets.
At the same time, due to the high strength and good toughness of the Q690D steel plate, the self-weight of the components can be reduced under the condition of ensuring performance, and the requirements for large-scale and lightweight engineering components and equipment can be met.
