P690Q STEEL PLATE

High tensile strength boiler used P690Q,P690Q steel plate,P690Q steel sheet shall be rolled according to steel standard EN 10028-6 standard specifications.The chemical composition of pressure vessel steel plate P690Q is within the below table.For reasons of hot formability,a lower copper content and a maximum tin content may be agreed at the time of inquiry and order.The tensile strength of pressure vessel steel plate P690Q shall be within 770-940 Mpa,and yield strength have to be above 690 Mpa for the steel plate thiclness equal and belows 50 millimeters.

Technical Requirements & Additional Services for P690Q steel plate:
♦ High tension test
♦ Low temperature impacting test
♦ Simulated post-welded heat treatment (PWHT)
♦ Ultrasonic test under EN 10160,ASTM A435,A577,A578
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Shot blasting and Painting,Cutting and welding as per end user’s demands 

►Mechnical property for P690Q steel plate:

Thickness (mm)
P690Q	≤ 50	> 50 ≤ 100	> 100
Yield strength (≥Mpa)	690	670	630
	≤ 100		> 100
Tensile strength (Mpa)	770-940		720-900

►Chemical composition for P690Q steel plate (Heat Analysis Max%)

Main chemical elements composition of P690Q steel plate
C	Si	Mn	P	S	B	N	Cr
0.20	0.80	1.70	0.025	0.015	0.005	0.015	1.50
Cu	Mo	Nb	Ni	Ti	V	Zr
0.30	0.70	0.06	2.50	0.05	0.12	0.15