P355Q STEEL PLATE

Quenched and tempered P355Q,P355Q steel plate,P355Q steel sheet under steel standard EN 10028-6 which is mainly used for building boilers and pressure vessels.In the steel standard EN 10028-6,steel grade P355Q,P460Q,P500Q,P690Q means the minus 20 centi degree impacting test,P355QH,P460QH,P500QH,P690QH means the minus 20 centi degree,P355QL1,P460QL1,P500QL1,P690QL1 means minus 40 centi degree,P355QL2,P460QL2,P500QL2,P690QL2 means doing minus 60 low temperature impacting test when rolling.

Technical Requirements & Additional Services for P355Q 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 P355Q steel plate:

Thickness (mm)
P355Q	≤ 50	> 50 ≤ 100	> 100
Yield strength (≥Mpa)	355	335	315
	≤ 100		> 100
Tensile strength (Mpa)	490-630		450-590

►Chemical composition for P355Q steel plate (Heat Analysis Max%)

Main chemical elements composition of P355Q steel plate
C	Si	Mn	P	S	B	N	Cr
0.16	0.40	1.50	0.025	0.015	0.005	0.015	0.30
Cu	Mo	Nb	Ni	Ti	V	Zr
0.30	0.25	0.05	0.50	0.03	0.06	0.05