ASTM A387Gr11CL2 pressure vessel steel A387 Grade 11 Class2 boiler steel plates

Description: ASTM A387Gr11CL2 pressure vessel steel plate is an American standard chromium-molybdenum alloy steel plate, which can prevent hydrogen embrittlement, hydrogen corrosion, hydrogen stripping, and sulfide corrosion in a medium temperature (350~480°C) hydroge...

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A387Gr11CL2 pressure vessel steel Description

ASTM A387Gr11CL2 pressure vessel steel plate is an American standard chromium-molybdenum alloy steel plate, which can prevent hydrogen embrittlement, hydrogen corrosion, hydrogen stripping, and sulfide corrosion in a medium temperature (350~480°C) hydrogen environment, and has good low temper brittleness. A387 Grade 11 Class 2 pressure vessel steel is suitable for hydrogenation reaction and conversion equipment and gas treatment at high temperature, the maximum thickness of the steel plate can reach 250mm mm thickness.

A387 Grade 11 Class2 high temperature resistant pressure vessel steel plate is produced according to ASTM A387/A387M standard. According to different thickness and impact requirements, the heat treatment of A387Gr11CL2 steel plate can be normalized plus tempered or normalized plus rapid cooling plus tempered. A387 Grade 11 Class2 boiler steel is widely used in cylinders, heads, and coke towers (including the bottom layer of composite steel plates) in high-temperature and high-pressure container equipment in the coal chemical and petrochemical industries.

A387Gr11CL2 pressure vessel steel Datasheet

Thickness: 0.5mm-200mm

Width : 1000mm/1250mm/1500mm/2200mm/2500mm or customized（Other widths are required for cutting）

Length: 1000mm/2400mm/6000mm or according to customer's request

Tolerance: Thickness :±0.5mm Width:±10mm Length :±10mm

Delivery condition: Hot rolled, controlled rolled, or normalized

Deep processing: After cutting large plate into the general sizes by drawing, milling and grinding, and make angles, polishing, and make special part

Package: tied up with steel strips and wrapped with water proof paper

A387Gr11CL2 pressure vessel steel Chemical composition

ASTM A387 Steel Plate Chemical Composition:
Grade	C	Mn	P	S	Si	Cr	Mo
A387 Gr 11	0.04-0.17	0.35-0.73	0.025	0.025	0.44-0.86	0.94-1.56	0.40-0.70
A387 Gr 12	0.04-0.17	0.35-0.73	0.025	0.025	0.13-0.45	0.74-1.21	0.40-0.65

A387Gr11CL2 pressure vessel steel Mechanical Properties

ASTM A387 Steel Plate Mechanical Properties:
ASTM A387	Tensile Strength	Yield Strength	Elongation in	Elongation in
Steel Grade	ksi [Mpa]	Min. ksi [Mpa]	8in. [200mm]	2in. [50mm]
A387 Grade 11 Class 2	75-100 [515-690]	45 [310]	≥18%	≥22%
A387 Grade 12 Class 2	65-85 [450-585]	40 [275]	≥19%	≥22%

Equivalent Grade of A387Gr11CL2 pressure vessel steel

Grade	Standard	Country	Application
SA387 Grade 11	ASME	USA	Mainly used in petroleum, chemical industry, power station, boiler and other industries.
13CrMoSi5-5	EN 10028	Europen	Mainly used for building boilers and pressure vessels in intermediate and higher temperature services.
621B	BS	UK	Mainly used to for manufacturing boilers, pressure vessels and pipes transporting hot liquids.