Q345E steel is a low-alloy high-strength steel plate. Q345E steel has good low temperature impact properties.
Q stands for yield strength; 345 stands for yield strength value in MPa; E stands for grade (through -40 degree impact test).
When the steel plate is required to have the performance in the thickness direction, a symbol representing the performance level in the thickness direction (Z direction) is added to the steel grade, for example: Q345EZ15.
When heat treatment requirements are required, such as normalizing, the steel grade is suffixed with N, which is usually represented by +N, for example: Q345E+N.
Chemical composition of Q345E steel:
C≤0.18
Si ≤0.50
Mn≤1.70
P 0.025
S 0.020
Nb 0.07
V 0.15
Ti 0.20
Cr 0.30
Ni 0.50
Cu 0.30
N 0.012
Mo 0.10
Q345E steel application
Q345E steel is mainly used in construction machinery, mining machinery, metallurgy and environmental protection, water conservancy and hydropower, track equipment and other structural parts.
