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Q620D high strength steel plate

As a high-quality steel material, Q620D high-strength steel plate has the characteristics and advantages of high strength, high toughness, excellent welding performance and processing performance. It can meet the requirements of various complex structures and heavy loads and is widely used in various fields.

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High-strength steel plate

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Product Details

Mechanical properties: Yield strength (Rp0.2): ≥620 MPa
Tensile strength (Rm): usually between 690 and 960 MPa
Elongation after fracture (A): Depending on the thickness of the steel plate, the elongation has different requirements, for example, for a steel plate with a thickness of ≤16mm, A≥18%
Impact performance: The impact absorption energy requirement of Q620D steel plate at -20°C is usually ≥34 J, which indicates that it can maintain high impact toughness even under low temperature conditions.
Application areas: high-strength structural components such as bridges, high-rise buildings, heavy machinery such as excavators, cranes, etc., pressure vessels, boilers and pipelines, shipbuilding, automotive industry, such as automobile beams, beams, etc.
Production process: Q620D steel plate is usually produced by thermomechanical rolling (TMCP) process, and a fine grain structure is obtained by controlling the rolling and cooling speed, thereby improving the strength and toughness of the steel.
Supply status: Q620D steel plate is usually delivered in hot-rolled, normalized or tempered state to meet the needs of different applications.
Q620D high-strength steel plate is known for its high strength, good low-temperature toughness and excellent welding performance.

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High-strength steel plate