ASTM A387 Grade 22 Class 2 Steel Plate

SA 387 Grade 22 Class 2 Steel Plate supplied by us are accepted by clients in various spheres of the industries ranging from basic industries such as sugar, paper, textile, dairy, engineering to more complex such as oil & gas, petrochemical, chemical & fertilizers, power generation and nuclear industries. We also have huge ready stock of Chrome Moly Steel Plate, Boiler Plate, HIC plate, Pressure Vessel Steel plate, Abrasion Resistant Steel Plates, Offshore & Structural Steel Plate, Quenched & Tempered Steel plate, High Nickel Alloy plate, Stainless Steel plate, Duplex Stainless Steel Plate, Clad plate, 16MO3 Steel Plate.

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  • ASTM A387 Grade 22 Class 2

Plate certified to ASTM A387 Grade 22 Class 2 and ASME SA387 Grade 22 Class 2 is available from Ninesteel. These grades of steel are chrome moly pressure vessel platesfor high temperature applications. As well as supplying in plate form, Ninesteel can cut plates to size and also cut to specific shapes.

We supply ASME SA387 Grade 22 Class 2 plates to global fabricators serving the oil, gas and petrochemical industry. These industries require a pressure vessel grade steel which works well in elevated temperatures and our material serves this purpose well. And with good corrosion and oxidation resistance, SA387 Grade 22 Class 2 plates are a good option for sour gas environments too.

Ninesteel stock SA387 Grade 22 carbon alloy plates and are able to dispatch worldwide.


622-515B10 CRMO910SA387-22-210 CRMO910

Chromium & Molybdenum content (according to the ASME specification)

DesignationNominal ChromiumContent (%)Nominal MolybdenumContent (%)
SA387 Grade 222.25%1.00%


Ninesteel Can Supply  SA 387 Grade 91 Class 2 Steel Plate as follows

Thicknesses:5mm to 150mm
Widths:1,500mm to 2,500mm
Length:6,000mm to 12,000mm


  • ASTM A387 Grade 5 Class 2, Grade 9 Class 2, Grade 11 Class 2, Grade 12 Class 2, Grade 22 Class 2, Grade 91 Class 2.

  • ASME SA387 Grade 5 Class 2, Grade 9 Class 2, Grade 11 Class 2, Grade 12 Class 2, Grade 22 Class 2, Grade 91 Class 2.

  • EN 10028: 16Mo3, 13CrMo45, 10CrMo910

  • BS 1501: 620B, 621B, 622B

Chemical Requirements – SA/A387 Grade 22 Class 2
(cast analysis, % by mass, maximum permitted unless indicated otherwise)

SiCr Mo 

Tensile Requirements – SA/A387 Grade 22 Class 2

Yield MPaTensile MPa Elongation (50mm)Reduc’n of Area*
310 min515 to 69018% min40% min

Typical Application of SA 387 Grade 22 Class 2 Steel Plate

  • boilers and pressure vessels,

  • Heat exchangers

  • Flanges, fittings and valves

  • ducting and pipe supports



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