Q345B STEEL PLATE

Steel grade Q345B is the most common used as high strength low alloy structural steel in industry area.We offer steel coils,steel plates,angles,channels for Q345B materials.The equivalent steel grade with Q345B,Q345B steel plate,Q345B steel sheet are EN 10025-2 S355JR,ASTM A572/A572 A572 Grade 50 and DIN 17100 St52-3.
 

Technical Requirements & Additional Services for Q345B 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 Q345B low alloy structural steel:

Thickness (mm)
Q345B	≤ 16	> 16 ≤ 35	> 35 ≤ 50	>50
Yield strength (≥Mpa)	345	325	295	275
Tensile strength (Mpa)	470-630

►Chemical composition for Q345B low alloy structural steel (Heat Analysis Max%)

Main chemical elements composition of Q345B
C	Si	Mn	P	S	V	Nb	Ti
0.20	0.55	1.00-1.60	0.040	0.040	0.02-0.15	0.015-0.060	0.02-0.20