ASTM A387 Grade 11 Class 2

ASTM A387

ASTM A387 is the technical delivery standard covering the supply of chrome molybdenum pressure vessel alloy steel plates.

The introduction of chrome molybdenum increases the materials temperature tensile strength making it an excellent choice for elevated temperature environments. The material also displays excellent corrosion resistant characteristics. ASTM A387 is therefore ideal for the fabrication of weldable steel pressure vessels and industrial boilers found commonly in the petrochemical and oil industry.

Arrow Pipes & Plate Industries stocks an extensive range of ASTM A387 Class 2 plates, which are available for shipping worldwide. Our plates are pre-tested to stringent standards which means in many cases we are able to ship to you immediately. Should you have more specific testing requirements we can arrange third party testing for you. Even in the event that a particular grade is not currently in stock, we can arrange shipping to you directly from the mill itself.

As a quality chrome moly steel, A387 Grade 11 Class 2 is used in a variety of industries and is highly effective, particularly in the oil, gas and chemical industry, where liquids and gases are often stored at high temperature (see pressure vessels).

The higher levels of chromium also provide excellent corrosion and oxidation resistance.

Please refer to our technical specifications below for ASTM A387 Grade 11 Class 2.

Chromium & Molybdenum content (according to the ASTM specification):

Designation Nominal Chromium Content (%) Nominal Molybdenum Content (%)
A387 Grade 11 1.25% 0.50%

Tensile Requirements for Class 2 Plates

Designation Requirement Grade 11
A387 Grade 11 Tensile strength, ksi [MPA] 75 to 100 [515 to 690]
Yield strength, min, ksi [MPa]/(0.2% offset) 43 [310]
Elongation in 8 in. [200mm], min % 18
Elongation in 2 in. [50mm], min, % 22
Reduction of area, min %

Chemical Requirements: 

Carbon (C) %
Heat Analysis:
Product Analysis:
0.05 – 0.17
0.04 – 0.17
Manganese (Mn) %
Heat Analysis:
Product Analysis:
0.40 – 0.65
0.35 – 0.73
Phosphorus (P) %
Heat Analysis:
Product Analysis:
0.035
0.035
Sulphur (S) (Max) %
Heat Analysis:
Product Analysis:
0.035
0.035
Silicon (Si) %
Heat Analysis:
Product Analysis:
0.50 – 0.80
0.44 – 0.86
Chromium (Cr) %
Heat Analysis:
Product Analysis:
1.00 – 1.50
0.94 – 1.56
Molybdenum (Mo) %
Heat Analysis:
Product Analysis:
0.45 – 0.65
0.45 – 0.70

(Maximum values unless stated otherwise)

ASTM A387 Grade 11 Class 1,  2 Plates stock of following Makes

Astm A 387 Gr. 11 Class 2 Plates stockist of VOESTALPINE(AUSTRIA) SA387 Grade 11 Class 2 Steel Plates of KOBE STEEL, LTD.(JAPAN)
ASTM A387 Grade 11 Class 2 Steel Plate stock of JFE STEEL CORPORATION (JAPAN) Stockholder of SA387 Grade 11 Alloy Steel Plates of NUCOR STEEL (USA)
ASTM A387 Steel Plate, astm a387 gr 11 cl 2 steel plates of ARCELOR MITTAL (USA) Steel Plate SA387/A387 Grade 11 Class 2 plates of JINDAL STEEL AND POWER LTD (USA)
A387 Gr11 Cl2 Steel Plate, SA387 Grade 11 plates of SSAB ALABAMA INC.(USA) ASTM A387 Grade 11 Class 2 Chrome Moly Steel plates of AZOVSTAL IRON & STEEL WORKS (UKRAINE)
SA387 Grade 11 Alloy Steel Plate of NIPPON STEEL & SUMITOMO METAL CORPORATION (JAPAN) A387 Grade 11 Class 2 pressure vessel steel plates of ESSAR STEEL INDIA LIMITED (INDIA)
SA387 Grade 11 Chrome Moly Plate of KOBE STEEL, LTD.(JAPAN) A387 Grade 11 Class 2 Hot Rolled Structural Steel Plates of JINDAL STEEL AND POWER LTD (INDIA)
astm a387 grade 11 class 2 plate stockist of NUCOR STEEL (USA) A387 Grade 11 Structural Quality Steel Plates of VOESTALPINE(AUSTRIA)
astm a387 grade 11 class 2 plate suppliers of JINDAL STEEL AND POWER LTD (USA) ASTM A387 Hot Rolled Carbon Steel Plates of JFE STEEL CORPORATION (JAPAN)
astm a387 grade 11 class 2 plate exporters of AZOVSTAL IRON & STEEL WORKS (UKRAINE) astm a387 grade 11 class 2 plate traders of POSCO (SOUTH KOREA)
ASTM A387 Grade 11 Class 2 Steel Plate Suppliers of ESSAR STEEL INDIA LIMITED (INDIA distributor of astm a387 grade 11 class 2 of JFE STEEL CORPORATION (JAPAN)
astm a387 grade 11 class 2 plate distributors of JINDAL STEEL AND POWER LTD (INDIA) Alloy Steel Grade 11 Class 1 Sheets of NIPPON STEEL & SUMITOMO METAL CORPORATION (JAPAN)
Grade 11 Chromium-Molybdenum Steel Plates of VOESTALPINE(AUSTRIA) ASTM A387 Alloy Steel Grd 11 Class 1 Cold Rolled Sheets of ARCELOR MITTAL (USA)
a387 grade 11 plate Supplaiers of NIPPON STEEL & SUMITOMO METAL CORPORATION (JAPAN) A387 Grade 11 Class 1 Alloy Steel Plates of JINDAL STEEL AND POWER LTD (USA)
SA-387-Chromium-Molybdenum Alloy Steel Pressure Vessel Plates of POSCO (SOUTH KOREA) A387 Gr. 11 Cl. 1 AS Coils and plates of AZOVSTAL IRON & STEEL WORKS (UKRAINE)
A387 Grade 11 Class 2 Hot Rolled Alloy Steel Plates of JFE STEEL CORPORATION (JAPAN) ASTM A387 Alloy Steel Grd 11 Class 1 Slatting Coils of ESSAR STEEL INDIA LIMITED (INDIA)
SA387 Grade 11 Class 1 Steel Plates of SSAB ALABAMA INC.(USA) ASME SA 387 Alloy Steel Sheets Stockists & Exporter of JINDAL STEEL AND POWER LTD (INDIA)

Origin of Plates

Nippon Steel Sumitomo Metal

Arcelor Mittal

Voestalpine(Austria)
JFE Steel Corporation (Japan)
Nippon Steel & Sumitomo Metal Corporation (Japan)
 Arcelor Mittal (USA)

 

POSCO (South Korea)

SSAB Alabama Inc.(USA)
Kobe Steel, Ltd.(Japan)
Nucor Steel (USA)
Jindal Steel Azovstal Essar Steel

Jindal Steel Power

JINDAL STEEL AND POWER LTD (USA)
Azovstal Iron & Steel Works (Ukraine)
M/s ESSAR STEEL INDIA LIMITED (India)
 JINDAL STEEL AND POWER LTD (India)

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