Q345R STEEL PLATE

Q345R,Q345R steel plate,Q345R boiler plate is the most used materials to build specified elevated boilers and pressure vessels.Q345R owned the minimum yield strength at 345 Mpa for thin thickness and tensile strength above 510 Mpa.The best equivalent steel grade with Q345R is A516 Grade 70 in specification ASTM A516/A516M.

Technical Requirements & Additional Services for Q345R steel plate:
♦ High tension test
♦ Cutting and welding as per end user’s demands
♦ Simulated post-welded heat treatment (PWHT)
♦ Rolling under standard NACE MR-0175 (HIC+SSCC)
♦ 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 Q345R Pressure vessel steel plate:

Thickness (mm)
Q345R	> 3 ≤ 16	> 16 ≤ 36	> 36 ≤ 60	>60 ≤ 100	>100 ≤ 150	>150
Yield strength (≥Mpa)	345	325	315	305	285	265
Tensile strength (Mpa)	510-640	500-630	490-620		480-610	470-600

►Chemical composition for Q345R Pressure vessel steel plate (Heat Analysis Max%)

Main chemical elements composition of Q345R steel plate
C	Si	Mn	P	S	Alt (min.)
0.20	0.55	1.20-1.60	0.025	0.015	0.020