Gnee Steel stands as a dedicated supplier and proficient exporter, specializing in ASTM A387 / ASME SA387 GRADE 11 Class 1 alloy steel plates. With a steadfast commitment to excellence, Amardeep Steel delivers top-quality products that align with industry standards, catering to diverse industrial applications.
ASME SA387 Grade 11 Class 1 Steel Plates are high-quality alloy steel plates that are widely used in construction applications. These plates are designed to withstand high temperatures and pressure, making them ideal for use in boilers, pressure vessels, and other industrial applications. The plates are made from Grade 11 Class 1 steel, which is a low alloy steel with excellent corrosion resistance and high strength. They are polished and have a gray color, making them visually appealing. The plates are available in various thicknesses ranging from 2-3 millimeters, and their shape is in the form of a plate. These steel plates meet the ASME standards, ensuring their quality and reliability.
ASME SA387 Grade 11 Class 1 Plates are a type of alloy steel plate designed to meet the rigorous standards set by theAmerican Society of Mechanical Engineers (ASME). These plates are primarily used in applications where high-temperature and high-pressure conditions are present. The grade 11 specification ensures that the plates are made fromchromium-molybdenum alloy steel, which enhances their strength and resistance to oxidation.
ASME SA387 Grade 11 Class 1Plates Properties
ASME SA387 Gr11 Class 1 Plates are characterized by several key Properties that make them suitable for demandingenvironments:
1. High Strength: The chromium and molybdenum content in these plates provides excellent tensile strength,
making them ideal for high-pressure applications.
2. Heat Resistance: These plates are designed to withstand high temperatures, making them suitable for use in
boiler and pressure vessel applications.
3. Corrosion Resistance: The alloy composition offers resistance to oxidation and corrosion, extending theservice life of the plates in harsh environments.
4. Ductility and Toughness: Despite their strength,these plates maintain good ductility and toughness, which iscrucial for applications involving thermal cycling and stress.5. Weldability: ASME SA387 Gr11 Class 1 Plates are weldable, allowing for ease of fabrication and assembly invarious construction and manufacturing Processes.
Advantages of ASME SA387 Grade 11 Class 1 Plates
1. Enhanced Safety: The high-strength and heat-resistant nature of these plates contribute to safer operations in
high-pressure environments, reducing the risk of failure.
2. Extended Durability: The corrosion resistance of these plates ensures that they remain functional and reliable
over extended periods,even in challenging conditions.
3. Cost Efficiency: Due to their durability and resistance to wear and tear, ASME SA387 Gr11 Class 1 Plates
often lead to lower maintenance costs and fewer replacements.
4.Versatility: These plates are suitable for a wide range of applications,including power generation, petrochemicalindustries, and manufacturing Processes that require high-temperature and high-pressure materials.5. Compliance and Quality Assurance: ASME SA387 Gr11 Class 1 Plates are manufactured to stringent ASMEstandards, ensuring high quality and reliability.
ASME SA387 Grade 11 Class 1 Plate Specification :
Width: 1000mm-4500mm
Thickness: 5mm to 150mm
Length: 3000mm-18000mm
Supply Condition : As Rolled, Normalized Rolling, Furnace Normalizing, Vacuum Degassing, Simulated Post-Weld Heat Treatment or as per customer requirement.
Impact tested: -52° C
Process of Manufacturing: Hot-Rolled (HR)
Equivalents
| BS | EN | ASTM/ASME | DIN |
| 621 B | ––– | SA387-11-1 |
–––
|
Chromium & Molybdenum content
| Designation | Nominal Chromium Content (%) |
Nominal Molybdenum Content (%) |
| SA387 Grade 11 | 1.25% | 0.50% |
Tensile Requirements for ASME SA387 Grade 11 Alloy Steel Plates Class 1 Plates
| Designation: | Requirement: | Grade 11 |
| SA387 Grade 11 | Tensile strength, ksi [MPa] | 75 to 100 [515 to 690] |
| Yield strength, min, ksi [MPa]/(0.2% offset) | 43 [310] | |
| Elongation in 8 in. [200mm], min % | 18 | |
| Elongation in 2 in. [50mm], min, % | 22 | |
| Reduction of area, min % | ––– |
Chemical Requirements for ASME SA387 Grade 11 Alloy Steel Plates
| Element | Chemical Composition (%) | |
| SA387 Grade 11 | ||
| Carbon: | Heat Analysis: | 0.05 - 0.17 |
| Product Analysis: | 0.04 - 0.17 | |
| Manganese: | Heat Analysis: | 0.40 - 0.65 |
| Product Analysis: | 0.35 - 0.73 | |
| Phosphorus: | Heat Analysis: | 0.035 |
| Product Analysis: | 0.035 | |
| Sulphur (max): | Heat Analysis: | 0.035 |
| Product Analysis: | 0.035 | |
| Silicon: | Heat Analysis: | 0.50 - 0.80 |
| Product Analysis: | 0.44 - 0.86 | |
| Chromium: | Heat Analysis: | 1.00 - 1.50 |
| Product Analysis: | 0.94 - 1.56 | |
| Molybdenum: | Heat Analysis: | 0.45 - 0.65 |
| Product Analysis: | 0.45 - 0.70 |
1 What is ASME SA387 Grade 11 Class 1 equivalent material?
ASME SA387 Grade 11 Class 1 is a Chrome Moly Alloy Steel for pressure vessels, primarily equivalent to ASTM A387 Grade 11 Class 1 in the US, with key international equivalents like BS 621B (British Standard) and potential equivalents in European standards like EN 10028 (though specific grades need verification). Its composition focuses on 1.25% Chromium and 0.5% Molybdenum, offering excellent high-temperature and corrosion resistance for the oil, gas, and petrochemical industries.
2 Do these plates meet any specific standard?
Yes, these steel plates meet the ASME standards, ensuring their quality and reliability.
3 What is the surface finish of these plates?
These plates are polished and have a gray color, making them visually appealing.
4What is the composition of ASME SA 387 Grade 11 Class 1
ASME SA 387 Grade 11 Class 1 is a Cr-Mo low alloy steel with approximately 1.25% Chromium (Cr) and 0.50% Molybdenum (Mo), providing excellent high-temperature strength and oxidation resistance for pressure vessels, with specific element ranges for Carbon, Manganese, Silicon, Phosphorus, and Sulfur, differing slightly between heat and product analysis.
5What is the density of f ASME SA 387 Grade 11 Class 1
The density for ASME SA 387 Grade 11 Class 1 (a chromium-molybdenum alloy steel) is approximately 7.85 g/cm³ or 7850 kg/m³, similar to most carbon and alloy steels, as density is primarily dependent on iron content, not specific grade variations like Class 1 or 2 which differ in mechanical strength.
Get an valued quotation for ASME SA387 Grade 11 Class 1 Contact GNEE Steel
