ASTM A299 GR.B Alloy Pressure vessel steel plate

Classification :

ASTM A299 /A299M covers manganese, silicon carbon steel plate for used in welded boiler and others pressure vessels in steel grade A299 Grade A and A299 Grade B.

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Boiler Pressure Vessel Steel

ASTM A299 GR.B Alloy Pressure vessel steel plate Descriptions:

ASTM A299 Grade B boiler steel plate with minimum yield strength above 325 Mpa,and tensile strength within 550-690 Mpa.Comparing with pressure vessel steel plate A299 Grade A,yield strength above 290 Mpa and tensile strength within 515-655 Mpa,pressure vessel steel plate SA299 Grade B owned a higher values.Additional technical requirements for boiler steel plates SA299 Grade B such as simulated post-weld heat treatment,low temperature impcting test,drop weight test and high temperature tension test.Ultrasonice test have to be done for SA299 Grade B boiler steel plate when rolling in our steel mill.

Chemical Composition and Mechanical Properties:

A299 Grade B Chemical Composition
Grade	The Element Max (%)
Grade	C	Si	Mn	P	S	Mo
A299 GR.B	0.28-0.30	0.13-0.45	0.84 -1.62	0.035	0.035	-

Grade	A299 Grade B Mechanical Property
Grade	Thickness	Yield	Tensile	Elongation
A299 GR.B	mm	Min Mpa	Mpa	Min %
	t≦50	310-325	550-690	19
	50<t≦200	310-325	550-690	19

Technical Requirements & Additional Services:
♦ High tension test
♦ Low temperature impacting test
♦ Normalised for thick plates over 40mm
♦ 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
♦ Shot blasting and Painting,Cutting and welding as per end user’s demands

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The annual output of the factory is 400,000 tons, and the current inventory is more than 100,000 tons, which can greatly save the purchasing time of customers and ensure the production cycle and product quality of customers. We are a quality partner for domestic and foreign customers. At present, there are 14 steel production lines for processing, bending, coating, heat treatment, cutting, drilling, chamfering, conditioning, surface treatment and 13 sets of processing equipment.

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Li Cheng (Shandong) Metal Materials Co., LTD. has the right to import and export, and its products are exported to more than 20 countries in Asia, Africa, Europe, North America and other regions. Complete processing equipment, perfect quality assurance system, well received by customers.We are willing to first-class technology, first-class equipment, first-class service wholeheartedly and friends from all walks of life sincere cooperation!

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Applicable to construction, petroleum, chemical, electric power, metallurgy, urban gas, heat pipe network, Bridges, railways, vehicles, ships and other industrial fields and construction, infrastructure and other engineering fields. Complete testing equipment, strong technical force, can implement GB, ASTM, JIS, DIN and other standards.

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Boiler Pressure Vessel Steel