How to Select the Right SA 387 Gr 11 Plate for Your Application

How do you select the right SA 387 Gr 11 plate for your application? With many plates available, deciding which type is best can be challenging. Luckily, this article will provide key insights regarding what factors to consider during selection to ensure that the chosen plate meets all requirements and results in long-term performance with no durability issues. Read on and learn everything you need to know about selecting an SA 387 Gr 11 plate!

What is the SA 387 Gr 11 Plate?

SA 387 Gr 11 Plate is a pressure vessel grade steel plate designed for elevated temperature service. It is delivered in normalized condition and is typically used to produce welded boilers and pressure vessels resistant to corrosion, abrasion, and heat damage. This plate type offers exceptional oxidation and carburization resistance at temperatures up to 1100°F (593°C). Its chromium-molybdenum alloy content makes it ideal for use in high-temperature environments such as oil refineries, power plants, petrochemical plants, and aerospace applications.

How to choose Right SA 387 Gr 11 Plate

Material Compatibility

SA 387 Gr 11 plate is a pressure vessel grade steel utilized in elevated temperature service with excellent corrosion resistance and strength. It can be used for diverse applications, including power plant heater chambers, valves, piping systems, process vessels, and tanks. The alloy has a good combination of high tensile strength, and the spinel structure of the alloy provides good oxidation resistance at temperatures up to 1600°F (871°C). This grade is widely used for numerous industrial applications requiring corrosion resistance. When exposed to more aggressive chemically active environments such as hydrochloric acid or sulfuric acid solutions, it should be combined with other materials like chromium molybdenum alloys to ensure compatibility and increase its durability depending on the use case.

Application-Specific Requirements

The operating environment and process requirements significantly affect selecting the right SA 387 Gr 11 plate. Every application requires different factors and properties like weldability, toughness, dimensional stability, thermal conductivity, and other mechanical properties. Identify all your application’s essential properties and factors and choose the SA 387 Gr 11 plate that meets those specifications.

Plate Size and Availability

Considering the size and availability of the SA 387 Gr 11 plate is essential. The plate size you need for your application may be limited. In that case, you may need to look for custom-made plates or modify your application process to fit the available plate sizes. Consider this option’s cost and time implications before making a final decision.

Manufacturer’s reputation and quality assurance

Choosing the right SA 387 Gr 11 plate requires a reliable and reputable manufacturer with quality assurance programs. The manufacturer should have a record of producing high-quality plates that meet the industry’s standards. Some of the quality assurance programs include ultrasonic, magnetic particle, and liquid penetrant testing. Please do your research on the manufacturer and ensure that they meet all of your requirements.


Choosing the right SA 387 Gr 11 plate for your application requires balancing the price with the plate’s quality and performance. Please don’t choose the cheapest option, which may compromise your application’s efficiency and safety. However, always compare manufacturers’ prices and choose the best quality-to-price ratio.


Selecting the right SA 387 Gr 11 plate for your application is an important process that requires proper analysis and consideration. Ensuring that your chosen plate meets your application’s requirements and is compatible with the operating environment is essential. Make an informed decision by considering the abovementioned factors, and always work with reputable manufacturers that produce high-quality plates. Following these guidelines, you can choose the right SA 387 Gr 11 plate to ensure your application’s productivity, efficiency, and safety.