Q1100D quenched and tempered high-strength plate, Q1100D steel plate fixed rolling, Q1100D mechanica

Q1100D quenched and tempered high-strength plate, Q1100D steel plate fixed rolling, Q1100D mechanica

Q1100D is a quenched and tempered high-strength plate, Q1100 steel plate has two grades, namely Q1100D, Q1100E

Q1100D, Q1100E steel plate fixed rolling: Wugang Xiangyang

Q1100D steel plate grade introduction

Q1100D steel plate grade Q = steel plate yield

1100 in Q1100D steel plate grade = yield strength

of steel plate Q1100D steel plate grade D = grade of steel plate - 20 impact

Q1100D steel plate implementation technical standard: GB/T 28909-2012

Q1100D high-strength steel plate for construction machinery is mainly used in the manufacture of the boom part called "knife edge" on large tonnage cranes, which not only requires extremely high strength and good toughness, but also requires near-extreme cold bending performance and high straightness plate shape, which is extremely difficult to produce. Previously, only SSAB Sweden was the only company in the world capable of producing this grade of steel plate. Compared with the previously developed high-strength steel plates of Q960E and below, Q1100D requires higher strength, and it is especially difficult to guarantee plastic toughness and cold-forming properties. At the same time, in order to obtain higher strength, more alloying elements are added, which also greatly increases the sensitivity to quenching, making it more difficult to ensure the shape of thin gauges.

In order to reduce the risk of trial production and increase the power of trial production, the research group carried out a large number of preliminary experimental studies in the laboratory, and organized the development of related varieties and quenching machine equipment R & D personnel to discuss for many times, and finally formulated a detailed process plan, so that the trial production could be carried out smoothly.