GB/T1591 Q345D low alloy steel supplier

GB/T1591 Q345D steel is a low alloy sheet commonly used in China. It is the same grade as German S355J2 and American ASTM A529MGr50, with slightly different chemical composition and same mechanical properties.

Under normal delivery conditions, it is the same as S355J2G3 in Germany, and even almost the same in performance as S355J2G4. Can be used interchangeably.

GB/T1591 Q345D High strength low alloy structural steels

Thickness:3mm-500mm

Width:1000mm-4200mm

Length:3000mm-18000mm

Mechanical propertes for GB/T1591 Q345D steel

Thickness (mm)
Q345D	≤ 16	> 16 ≤ 35	> 35 ≤ 50	>50
Yield strength (≥Mpa)	345	325	295	275
Tensile strength (Mpa)	470-630

Chemical composition for Q345D low alloy structural steel
 

Main chemical elements composition of Q345D
C	Si	Mn	P	S	V	Nb	Ti	Al (min.)
0.18	0.55	1.00-1.60	0.030	0.030	0.02-0.15	0.015-0.060	0.02-0.20	0.015

GB/T1591 Q345D Steel Plate are used in Construction of Bridges, Highway Construction and Other Engineering construction.

If you have any requirement in Q345D low alloy steel plate,please feel free to contact us by email or calling.