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P355QL1 steel plate, P355QL1 boiler steel plate

P355QL1 steel plate under EN10028-6 standard, it has a good weldable, so it is mainly used in high temperature equipment and pressure vessel.

P355QL1 introduce:

P…Q means the -20 degree and the impact energy is 27J

P…QH means the -20 temperature quality and the impact energy is 27J

P…QL1 means the -40 temperature quality and the impact energy is 27J

P355QL1 steel plate size:

Thickness: 6MM to 300MM, Width: 1500mm to 4050mm, Length: 3000mm to 15000mm

P355QL1 steel chemical composition
Grade	The Element Max (%)
Grade	C	Si	Mn	P	S	N	B
P355QL1	0.16	0.4	1.5	0.020	0.010	0.015	0.005
	Mo	Cu	Nb	Ni	Ti	V	Zr
	0.25	0.3	0.05	0.5	0.03	0.06	0.05

P355QL1 steel mechanical properties:

Grade	Type	Thickness	Yield Strength	Tensile Strength	Elongation	Impact Energy
		(mm)	MPa (min)	MPa	% (min)	(KV J) (min)
						-40 degree
P355QL1	+ QT	t ≤ 50	355	490-630	22	27
		50＜t ≤ 100	355	490-630	22	27
		100＜t ≤ 150	315	450-590	22	27

P355QL1 steel application:

P355QL1 steel plates are widely used in pressure vessel, boiler, storage tanks and heat exchanger in oil, gas project.

P355QL1 steel surface treatment: Shot blasting and painting or coated.

Additional Condition :

UT (Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered), Z Direction Test(Z15, Z25, Z35) , Charpy V-Notch Impact Test, HIC test, NDT, PWHT( Simulated Post Weld Heat Treatment), NACE0175, The Third Party Test (Such as SGS Test), Coated or Shot Blasting and Painting.

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