SA387 Grade 22 Class 2 Alloy Steel Plates are high-performance chromium-molybdenum alloy steel designed for pressure vessels, boilers, and industrial equipment operating at elevated temperatures.
SA387 Grade 22 Class 2 Alloy Steel Plates
This material is widely used in the oil, gas, and petrochemical industries, where equipment must withstand high pressure, high temperature, and corrosive environments.
GNEE Steel supplies high-quality SA387 Grade 22 Class 2 plates globally, manufactured under strict quality control using premium alloys to ensure excellent mechanical performance, corrosion resistance, and durability.
Overview of SA387 Grade 22 Class 2 Alloy Steel Plates
Standard: ASME SA387
Grade: SA387 Grade 22 Class 2
Material Type: Chromium-molybdenum alloy steel
Heat Treatment: Normalized and tempered
Delivery Condition: Hot rolled, controlled rolling, or normalized
Shapes & Sizes: Plates, sheets, coils; thickness 6mm – 150mm (custom sizes available)
Surface Finish: Clean and smooth, free of defects, suitable for welding and forming
Chemical Composition of SA387 Grade 22 Class 2 Alloy Steel Plates
| Element | Heat Analysis (%) | Product Analysis (%) |
|---|---|---|
| Carbon (C) | 0.05 – 0.15 | 0.04 – 0.15 |
| Manganese (Mn) | 0.30 – 0.60 | 0.25 – 0.66 |
| Phosphorus (P) | ≤ 0.035 | 0.035 |
| Sulfur (S) | ≤ 0.035 | 0.035 |
| Silicon (Si) | ≤ 0.50 | 0.50 |
| Chromium (Cr) | 2.00 – 2.50 | 1.88 – 2.62 |
| Molybdenum (Mo) | 0.90 – 1.10 | 0.85 – 1.15 |
The carefully controlled alloying elements ensure superior mechanical performance and corrosion resistance under high-temperature operating conditions.
Mechanical Properties of SA387 Grade 22 Class 2 Alloy Steel Plates
| Property | SA387 Grade 22 Class 2 |
|---|---|
| Tensile Strength | 75 – 100 ksi (515 – 690 MPa) |
| Yield Strength | ≥ 45 ksi (310 MPa) |
| Elongation (200mm) | ≥ 18% |
| Elongation (50mm) | ≥ 18% |
| Hardness | 130 – 170 HB |
| Reduction of Area | 45% (round specimen), 40% (flat specimen) |
Key Applications of SA387 Grade 22 Class 2 Alloy Steel Plates
SA387 Grade 22 Class 2 plates are widely used in industries requiring pressure vessels and components that operate at elevated temperatures:
- Oil & Gas: High-pressure piping systems, storage tanks, reactors
- Petrochemical Industry: Boilers, heat exchangers, pressure vessels
- Power Generation: Steam headers, turbine casings, high-temperature components
- Industrial Applications: Chemical processing, marine equipment, food processing
- Other: Components exposed to sour gas environments or corrosive high-temperature media
Advantages of SA387 Grade 22 Class 2
High strength and toughness for safe operation under pressure
- Superior oxidation and corrosion resistance
- Excellent weldability and formability
- Reliable performance in sour gas and harsh environments
- Compliance with ASME, EN, BS, and DIN equivalent standards
Guidelines for Use
To ensure optimal performance, follow these best practices when working with SA387 Grade 22 Class 2 plates:
- Material Selection & Design: Confirm chemical and mechanical requirements for your pressure vessel or boiler.
- Fabrication & Welding: Use proper welding techniques; verify heat treatment compatibility.
- Quality Control & Testing: Conduct tensile, hardness, chemical, and ultrasonic tests.
- Corrosion Protection: Apply coatings or anti-corrosion treatments as needed.
- Maintenance & Inspection: Regularly check for stress, cracks, and oxidation.
- Safety & Compliance: Follow ASME and international pressure vessel codes.
Packaging & Delivery
Bundled with wire rope or strip
Wooden pallets, crates, or boxes with clear labeling
Moisture-proof, rust-proof, and shock-proof packaging for international shipment
Delivery: 10–222 days depending on stock and order quantity
Why Choose GNEE Steel for SA387 Grade 22 Class 2
Professional supplier with over 10 years of experience
Global export network to over 45 countries
High-quality alloy steel at competitive pricing
Full technical support and rapid response for inquiries and quotations
Reliable supply chain and packaging to ensure safe delivery
Send your requirements (thickness, width, length, quantity, destination port) and get a competitive quote with full technical support within 8 hours.
Contact now to get SA387 Steel Plate Quote
What is SA 387 material?
0.85 - 1.15. SA387 GR 5 CLASS 2. A high quality chrome molybdenum alloy steel plate intended specifically for use in weldable carbon steel pressure vessels at elevated temperatures. Added molybdenum gives the material greater temperature tensile strength and the chromium provides improved corrosion resistance.
What is SA387 grade 11 equivalent to?
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.
What is SA 387 11 cl2 material?
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 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.