Q345A STEEL PLATE

GB/T1591 Q345 includes five different steel grades as Q345A,Q345B,Q345C,Q345D and Q345E.These high tension steel grades owned the same mechincal properties,minimum yield strength at 345Mpa and tensile strength within 470-630Mpa.
 

Technical Requirements & Additional Services for Q345A steel plate:
♦ Low temperature impacting test
♦ Cutting and welding as per end user’s demands
♦ More striction on some chemical elements contains
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Ultrasonic test under GB/T2970,JB4730,EN 10160,ASTM A435,A577,A578 

►Mechnical property for Q345A low alloy structural steel:

Thickness (mm)
Q345A	≤ 16	> 16 ≤ 35	> 35 ≤ 50	>50
Yield strength (≥Mpa)	345	325	295	275
Tensile strength (Mpa)	470-630

►Chemical composition for Q345A low alloy structural steel (Heat Analysis Max%)

Main chemical elements composition of Q345A
C	Si	Mn	P	S	V	Nb	Ti
0.20	0.55	1.00-1.60	0.045	0.045	0.02-0.15	0.015-0.060	0.02-0.20