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Member Since 2 Years
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GST No. 27AQCPC2714K1Z4Ask for more detail from the seller
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ASME SA 387 Gr. 5 Cl. 1 and Cl. 2 Plates are chrome-moly alloy steel plates designed for high-temperature, pressure vessel, and boiler applications. With a 5% chromium and 0.5% molybdenum composition, these plates offer excellent oxidation resistance, thermal stability, and high-temperature strength.
The main difference between Class 1 and Class 2 is the tensile strength, with Class 2 offering slightly higher strength. These plates are ideal for use in refineries, petrochemical plants, power stations, and heat exchangers.
Key FeaturesExcellent heat and oxidation resistance
Maintains strength at elevated temperatures
Enhanced creep and rupture resistance
Good weldability and formability
Available in normalized and tempered condition
| Grade | Gr. 5 |
| Class | 1 (Cl.1) and 2 (Cl.2) |
| Condition | Normalized and Tempered |
| Chromium Content | ~5% |
| Molybdenum Content | ~0.5% |
| Thickness | 6 mm – 100 mm |
| Width | 1000 mm – 3000 mm |
| Length | 3000 mm – 12000 mm |
| Surface Finish | Mill / Shot Blasted / Painted |
| Tensile Strength | 415 – 585 MPa | 515 – 690 MPa |
| Yield Strength | ≥ 205 MPa | ≥ 275 MPa |
| Elongation | ≥ 20% | ≥ 20% |
| Impact Toughness | As per ASME requirement | As per ASME requirement |
| 0.15 | 0.60 | 0.50 | 0.025 | 0.025 | 4.00–6.00 | 0.45–0.65 |
Ultrasonic Testing – As per EN 10160 or ASTM A578
Charpy Impact Testing (on request)
Tensile, Yield, and Elongation Testing
Chemical Composition and Hardness Testing
Third-party Inspection – TUV, DNV, SGS, Lloyd’s (on request)
Oil refineries and chemical plants
Pressure vessels and reactors
Heat exchangers and boilers
High-temperature piping and tanks
Power generation and thermal processing units
Mill Test Certificate – EN 10204 3.1 / 3.2
Mechanical and Chemical Test Reports
Heat Treatment Records
Third-party Inspection Reports (if required)
Full Traceability and QA/QC Documentation
Would you like to prepare this in a PDF brochure format, compare Gr.5 with Gr.9 or Gr.11, or add this to a full chrome moly steel catalog? I can assist further.
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Girgaon, Mumbai, Maharashtra 
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