ASME SA387 Grade 9 Class 2 Alloy Steel Plates
ASME SA387 Grade 9 Class 2 Alloy Steel Plates are highly acclaimed for their robust performance and excellent mechanical properties. These plates are designed to withstand high pressure and high temperature conditions, making them ideal for use in the power generation and petrochemical industries. At ASC LLP, we take pride in being leading suppliers and stockists of ASME SA387 Grade 9 Class 2 Plates, ensuring that our clients receive top-quality products tailored to their specific needs.
What are ASME SA387 Grade 9 Class 2 Plates?
ASME SA387 Grade 9 Class 2 Plates are part of the ASME SA387 standard specification for pressure vessel plates, alloy steel, and chromium-molybdenum. This particular grade, Grade 9 Class 2, is known for its high chromium and molybdenum content, which provides enhanced corrosion resistance and increased tensile strength. These plates are specifically engineered to perform under extreme conditions, making them a preferred choice for industries that require reliable and durable materials.

Properties of ASME SA387 Grade 9 Class 2 Plates
The key properties that make ASME SA387 Gr9 Cl2 Plates stand out include:
- High Temperature Resistance: These plates maintain their strength and structural integrity even at elevated temperatures, making them suitable for use in high-temperature environments.
- Corrosion Resistance: The chromium content in these plates provides excellent resistance to oxidation and corrosion, ensuring longevity and durability.
- Tensile Strength: With a high tensile strength, ASME SA387 Gr9 Cl2 Plates can withstand significant stress without deformation or failure.
- Hardness: The molybdenum content increases the hardness of these plates, enhancing their wear resistance and overall toughness.
- Ductility: Despite their strength, these plates maintain a level of ductility, allowing them to be formed and welded without cracking.
Advantages of Using ASME SA387 Gr9 Cl2 Plates
Choosing ASME SA387 Gr9 Cl2 Plates offers numerous advantages, such as:
- Reliability in Extreme Conditions: These plates are designed to perform under severe conditions, providing reliability and peace of mind for critical applications.
- Cost-Effective: The longevity and durability of these plates reduce the need for frequent replacements, offering a cost-effective solution over time.
- Versatility: Suitable for a wide range of applications, including boilers, pressure vessels, and heat exchangers, these plates offer versatility in their use.
- Ease of Fabrication: These plates can be easily fabricated, welded, and formed, allowing for customized solutions to meet specific requirements.


Schedule and Size Chart
Plate Thickness (mm) | Plate Width (mm) | Plate Length (mm) |
6 – 10 | 1000 – 2000 | 2000 – 6000 |
11 – 20 | 1000 – 2000 | 2000 – 12000 |
21 – 40 | 1000 – 2000 | 2000 – 12000 |
41 – 80 | 1000 – 2000 | 2000 – 12000 |
Mechanical Properties Chart
Property | Value |
Tensile Strength (MPa) | 585 – 760 |
Yield Strength (MPa) | ≥ 415 |
Elongation (%) | ≥ 20 |
Hardness (HBW) | 170 – 240 |
Specifications Chart
Standard | Specification |
ASME | SA387 |
Grade | 9 |
Class | 2 |
Alloy Type | Chromium-Molybdenum Alloy Steel |
Delivery Condition | Normalized and Tempered |
Chemical Composition Chart
Element | Composition (%) |
Carbon (C) | 0.05 – 0.15 |
Manganese (Mn) | 0.30 – 0.60 |
Phosphorus (P) | ≤ 0.035 |
Sulfur (S) | ≤ 0.040 |
Silicon (Si) | 0.50 – 1.00 |
Chromium (Cr) | 8.00 – 10.00 |
Molybdenum (Mo) | 0.90 – 1.10 |
Physical Properties Chart
Property | Value |
Density (g/cm³) | 7.85 |
Melting Point (°C) | 1425 – 1510 |
Specific Heat (J/kg·K) | 460 |
Thermal Conductivity (W/m·K) | 36 |
Modulus of Elasticity (GPa) | 210 |
Application Chart
Industry | Applications |
Power Generation | Boilers, Pressure Vessels |
Petrochemical | Reactors, Heat Exchangers |
Oil and Gas | Extraction and Processing Equipment |
Chemical Processing | Manufacturing and Processing Plants |
Industrial Engineering | High-Temperature Components |
ASME SA387 Grade 9 Class 2 Plates Suppliers and Stockists
As reputable suppliers and stockists of ASME SA387 Gr9 Class 2 Plates, ASC LLP is committed to providing our clients with high-quality materials that meet their specific needs. Our extensive inventory ensures that we can offer quick delivery and competitive pricing on all orders. Our team of experts is always available to assist with any technical queries and provide guidance on the best solutions for your applications.
Why Choose ASC LLP?
- Quality Assurance: We adhere to strict quality control measures to ensure that our products meet the highest standards of performance and reliability.
- Customer Satisfaction: Our commitment to customer satisfaction is reflected in our personalized service and attention to detail.
- Technical Expertise: With years of experience in the industry, our team possesses the technical knowledge and expertise to support your project requirements.
- Global Reach: We supply ASME SA387 Gr9 Class 2 Plate to clients worldwide, ensuring timely delivery and exceptional service.
In conclusion, ASME SA387 Gr9 Class 2 Alloy Steel Plates are an excellent choice for industries requiring materials that can withstand extreme conditions. With their superior properties and advantages, these plates offer a reliable and cost-effective solution for a wide range of applications. As leading suppliers and stockists, ASC LLP is dedicated to providing top-quality ASME SA387 Gr9 Cl2 Plates to meet the diverse needs of our clients. Contact us today to learn more about our products and services, and let us help you find the perfect solution for your project.
Global Reach
Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality ASME SA387 Grade 9 Class 2 Plates. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.

Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.