Tianjin Bohai Metal Corporation

A302 GR.D Boiler and Pressure Vessel Steel plate

A302 Grade D steel plates standard specification for pressure vessel plates in alloy steel, manganese molybdenum and manganese-molybdenum-nickel. A302 Grade D steel plate shall be normally supplied in the as-rolled condition. Plates may be ordered normalized or stress relieved, or both. If A 302 Grade D above 50mm in thickness shall be normalized.

Boiler Pressure Vessel Steel

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Commodity name: A302 GR.D Boiler and Pressure Vessel Steel plate

A302 GR.D Boiler and Pressure Vessel Steel plate Descriptions:

Boiler steel plate A302 Grade D is a kind of alloy steel with Manganese,Molybdenum and nickel.A302 Grade D contains a higher Nickel element in rolling than Boiler steel plate A302 Grade C.Pressure vessel steel plate owned the same value range in mechanical property as A302 Grade B and A302 Grade C,yield strength above 345 Mpa,and tensile strength within 550-690 Mpa.Gnee steel would like to offer MTC under format EN 10204 3.1 or EN 10204 3.2 with third party inspections.

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

Chemical Composition and Mechanical Properties:

A302 Grade D Chemical Composition
Carbon, max	%	Manganese, max	%	Silicon, max	%	Sulfur max	%
25mm or under	0.2	Heat Analysis	1.15-1.50	Heat Analysis	0.15-0.40	All thick	0.035
25-50mm	0.23	Product Analysis	1.07-1.62	Product Analysis	0.13-0.45
over 50mm	0.25
		Molybdenum max	%	Nickel max	%	Phosphorus	%
		Heat Analysis	0.45-0.60	Heat Analysis	0.70-1.0	All thick	0.035
		Product Analysis	0.41-0.64	Product Analysis	0.67-1.03	All thick	0.035

Mechanical Property of A302 Grade D steel plate	A302 Grade D
Tensile strength, kis [MPa]	80-100 [550-690]
Yield strength, min, kis [MPa]	50 [345]
Elongation in 8 in. [200 mm], min, %	17
Elongation in 2 in. [50 mm], min, %	20

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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