Product Item: ASME SA387 Chromium-Molybdenum Alloy Steel Plates, UT
Material: ASME SA387/SA387M Grade 11 Class 2
Dimensions: 10 * 2200 * 6000 mm
UT: Passed
The Chromium-Molybdenum Alloy Steel Plates Plant offers ASME SA387/SA387M Grade 11 Class 2 steel plates with dimensions of 10 * 2200 * 6000 mm. These plates are specifically designed for high-temperature applications and have passed ultrasonic testing to ensure structural integrity.
The chromium-molybdenum composition enhances strength, corrosion resistance, and toughness, making them ideal for industries like power generation, petrochemical, and pressure vessel manufacturing.
ASME SA387 Grade 11 Class 2 (ASTM A387 Grade 11 CL2) is a specification for chromium-molybdenum alloy steel plates intended for use in elevated temperature applications, commonly associated with pressure vessels and heat exchangers. Nominal chrome content at 1.00% to 1.50%, and Moly 0.45% to 0.65% for SA387 GRADE 11 material.


| Alloy Steel A387 Gr 11 Plate Specifications | ASTM A387 / ASME SA387 |
| ASME SA 387 gr. 11 Alloy Steel Plate Standard | ASTM, ASME and API |
| SA 387 gr. 11 Plate Grade |
ASTM A387 GR.11 CL.1 ASTM A387 GR.11 CL.2 |
| A387 Plate Gr 11 Plate Rolling Type | Oil and offshore platform steel plate |
| Thickness of SA 387 Grade 11 Class 2 Plate | 4mm-300mm |
| SA 387 Gr 11 Cl 2 Plate Width | 1500mm-4200mm |
| SA 387 gr 11 Class 2 Boiler & Pressure Vessel Steel Plate Length | 3000mm-18000mm |
| Heat Treatment | Normalized / Drawing-back |
| Technique | Hot Rolled |
| Classification | Alloy quality steel |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| ASME SA 387 Grade 11 Class 2 Sheet Form | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) |
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
Overview SA 387 Gr 11 / SA 387 Gr 22
Chemical Requirements
*Elements represented in percentage
| Element Composition % | ||
|---|---|---|
| SA 387 Grade 11 |
SA 387 Grade 22 |
|
| Carbon, max: | ||
| Heat analysis | 0.05-0.17 | 0.05-0.15A |
| Product analysis | 0.04-0.17 | 0.04-0.15A |
| Manganese, max: | ||
| Heat analysis | 0.40-0.65 | 0.30-0.60 |
| Product analysis | 0.35-0.73 | 0.25-0.66 |
| Phosphorus, max: | ||
| Heat analysis | 0.025 | 0.025 |
| Product analysis | 0.025 | 0.025 |
| Sulfur, max: | ||
| Heat analysis | 0.025 | 0.025 |
| Product analysis | 0.025 | 0.025 |
| Silicon: | ||
| Heat analysis | 0.50-0.80 | 0.50 max |
| Product analysis | 0.44-0.86 | 0.50 max |
| Chromium: | ||
| Heat analysis | 1.00-1.50 | 2.00-2.50 |
| Product analysis | 0.94-1.56 | 1.88-2.62 |
| Molybdenum: | ||
| Heat analysis | 0.45-0.65 | 0.90-1.10 |
| Product analysis | 0.40-0.70 | 0.85-1.15 |
Tensile Requirements For Class 1 Plates
| SA 387 Grade 11 |
SA 387 Grade 22 |
|
|---|---|---|
| Tensile strength, ksi [MPa] | 60 to 85 [415 to 585] |
60 to 85 [415 to 585] |
| Yield strength min. ksi [MPa] | 35 | 30 |
| Elongation in 8 in. [200 mm], min. % | 19 | |
| Elongation in 2 in. [50 mm], min. % | 22 | 18 |
| Reduction of area, min % | 45 40 |
Tensile Requirements For Class 2 Plates
| SA 387 Grade 11 |
SA 387 Grade 22 |
|
|---|---|---|
| Tensile strength, ksi [MPa] | 75 to 100 [515 to 690] | 75 to 100 [515 to 690] |
| Yield strength min. ksi [MPal]/(0.2% offset) | 45 [310] | 45 [310] |
| Elongation in 8 in. [200 mm], min. %B | 18 | … |
| Elongation in 2 in. [50 mm], min. %B | 22 | 18 |
| Reduction of area, min % | … | 45 40 |
What material is SA 387 GR 11 cl2?
11 CL. 2 Plate is a pressure vessel grade steel plate that is used in high-temperature applications. It is made of a chrome-moly alloy that contains molybdenum and chromium.
What is the ASTM A387 GR 11 equivalent to?
ASME SA387
Sa 387 Gr 11 Equivalent Material is the ASME SA387 in the US markets with the European Union having modules in 13CrMoSi5-5 grade. The Sa 387 Gr 11 Cl 2 Equivalent Material is the SA387-11-2 of the ASME and ASTM standard.
Equivalent grades of A387 gr.11 boiler and pressure vessel steel plate:
| USA | USA | EUROPEAN | GERMANY |
UK (BRITISH STANDARD) |
FRANCE | RUSSIA | |
| STANDARDS | ASTM | ASME | EN 10028 | DIN | BS | AFNOR 36206 | GOST |
| GRADE | A387 11 | SA387 11 | 13CrMoSi5-5 | --- | 621B |
What is SA 387 equivalent material?
Due to all these properties, the material is ideal for sour service applications in a wide range of industries. what are Equivalent Material of Sa 387 Gr 12 ? The Equivalent materials of Sa 387 Gr 12 are BS 620B, UNS K11757, A387 / SA 387, DIN 13 CRMO 44, and EN 3 CRMO 45.
What temperature is SA 387 GR 11?
In the lower end of the temperature range SA 387 Gr 11 (1150 °F min tempering temperature) , and SA 387 Gr 22 (1250 °F min tempering temperature) are used. These grades can be specified in either class 1 or 2 and can also be provided in the Normalized & Tempered or Quenched and Tempered.
What is the difference between SA 387 Grade 11 CL 1 and Class 2?
The difference between SA 387 Grade 11 Class 1 and Class 2 Plate lies in their mechanical properties. However, they both have the same chemical composition. The tensile strength and yield strength of class 2 material is higher than that of class 1, whereas the elongation for class 1 is higher compared to class 2.




