What is Q690D steel?

Q690D steel is a kind of low alloy high strength steel.Q690D steel is named because of its yield strength value. Q is the abbreviation of yield strength,that is, the yield strength of Q690D steel is 690 MPa. D indicates that the impact temperature of Q690D steel is -20℃.

Q690D belongs to low alloy high strength structural steel plate, Q690D implementation standard for GB/T1591-2008 special technical conditions.

Q690D itself not only has this very high strength but also has a certain flexibility, wear resistance, fatigue resistance, impact resistance, easy processing and wear resistance, often used in the manufacturing industry for example; Mining machinery, crane, iron anchor, shield machine, hydraulic support, port machinery, Marine equipment bridge structure, etc.

Q690D Steel Plate Applications

Q690D steel plate has high strength, good plasticity and toughness, good weldability, good hot and cold properties.Q690D plate is mainly used for the manufacture of a variety of large-scale engineering structural components and construction machinery. Because of its high strength, good toughness, in order to ensure the strength, stiffness and reliability of the conditions, can reduce the weight of the components to meet the engineering components and equipment large-scale, lightweight requirements.