A387 Grade 11 Class 1 pressure vessel steel A387Gr11CL1 boiler steel plates

Description: A387 Grade 11 Class 1 pressure vessel steel under the ASTM A387/A387M standard, A387 Grade 11 Class 1 is a chrome-molybdenum alloy steel plate material used to manufacture high-temperature pressure vessels. ASTM A387 Grade 11 Class 1 pressure vessel steel...

If the standard size steel materials can not meet your demands, We aslo supply A387Gr11CL1 pressure vessel steel processing service. you can find one-stop solution for various customized steel processing requirements: Large vessels, structural parts, semi-products, components, manufacturing supporting ...

Processing Service: Cutting, Welding, Drilling, Rolling, Bending, Forming, Grinding, Stamping and so on machining

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A387Gr11CL1 pressure vessel steel Description

A387 Grade 11 Class 1 pressure vessel steel under the ASTM A387/A387M standard, A387 Grade 11 Class 1 is a chrome-molybdenum alloy steel plate material used to manufacture high-temperature pressure vessels. ASTM A387 Grade 11 Class 1 pressure vessel steel is widely used in petroleum, chemical industry, power stations, boilers, etc., for the manufacture of reactors, heat exchangers, separators, spherical tanks, liquefied gas, nuclear reactor pressure vessels, boiler drum steam, liquefaction Petroleum gas, hydropower stations, high-pressure pipelines and other equipment and components.

A387Gr11CL1 boiler and pressure vessel steel is also a premium chrome molybdenum steel designed for use in weldable carbon steel pressure vessels at high temperatures. The added molybdenum gives the material higher temperature tensile strength, while the chromium increases corrosion resistance. At the same time, the higher content of chromium in the A387Gr11CL1 grade also provides excellent corrosion resistance and oxidation resistance. BBN Steel can provide various sizes of A387 Grade 11 Class 1 boiler and pressure vessel steel, usually delivered in the state of normalizing or hot rolling, and provides various deep processing services such as cutting, welding, bending, drilling, etc. It can meet the needs of different customers.

A387Gr11CL1 pressure vessel steel Datasheet

Thickness: 0.5mm-150mm

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

A387Gr11CL1 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

A387Gr11CL1 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 1	60-85 [415-585]	35 [240]	≥19%	≥22%
A387 Grade 12 Class 1	55-80 [380-550]	33 [230]	≥18%	≥22%
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 A387Gr11CL1 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.