What is the Q460MD steel meaning?

Q460MD low alloy high strength structural steel description

Standard: GB/T1591-2018 low alloy high strength structural steel

Grade:Q460MD

Category:low alloy high strength structural steel

Application: it is used for engineering and general structures that require low-temperature impact performance.

Q460MD steel meaning

Q represents the yield strength of steel. The Chinese pinyin of "qu" is a capital letter.

Q460 means that the plastic deformation of steel will only occur when the strength of the steel reaches 460 MPa, that is, when the external force is released, the steel can only maintain the shape of the force and cannot return to its original shape. This strength is greater than that of ordinary steel.

M represents the delivery status of thermomechanical controlled rolling (TMCP), and D—quality grade is D grade (grades are divided into C, D, E).

Delivery status: thermomechanical controlled rolling (TMCP)