The Role of ASTM A387 Grade 5 Plates in Petrochemical Processing

If you’re involved with plant and petrochemical processing, you know how important it is to have reliable plate material to handle these operations’ intense heat and pressure. Fortunately, ASTM A387 Grade 5 plates are specifically designed for high-temperature service applications and provide an unbeatable combination of strength, corrosion resistance, toughness, and quality necessary for safely producing essential petrochemicals. In this blog post, we will explore ASTM A387 Grade 5 plates’ role in successful petrochemical processing and where they can be purchased.

What is ASTM A387 Grade 5 Plates?

ASTM A387 Grade 5 Plates are chrome molybdenum alloy steel plates intended primarily for welded boilers and pressure vessels designed for moderate and lower temperature services. They contain chromium (0.40%) and molybdenum (0.35%) as alloying elements with manganese, silicon, nickel, tungsten, and nitrogen. The physical properties of ASTM A387 Grade 5 Plates make them suitable for elevated temperature services due to their superior strength, good corrosion resistance in the atmosphere, and low mechanical stress under maximum temperatures. The tensile strength is around 620MPa, while the yield strength is 420MPa resulting in an elongation of 20%. Their special features include hardness values of 230BHN, making them highly durable enough even in extreme weather conditions at varying atmospheric pressures.

ASTM A387 Grade 5 Plates in Pressure Vessels

Pressure vessels are essential components in petrochemical processing plants, wherein they store, transport, and process various chemicals and other substances. These vessels should be sturdy enough to handle high temperatures and pressure. That’s where ASTM A387 Grade 5 plates come in – they offer excellent corrosion resistance and high-temperature oxidation, making them a popular choice for pressure vessel fabrication. These plates can handle pressure up to 2175psi and temperatures as high as 1000°F without warping or cracking, ensuring safety and efficiency.

ASTM A387 Grade 5 Plates in Boilers

Boilers are critical in petrochemical processing since they provide steam that enables various processes like power generation and heating. Since boilers operate at high temperatures and pressure, they are prone to corrosion and thermal fatigue. ASTM A387 Grade 5 plates are perfect for these applications since they exhibit exceptional corrosion resistance and withstand high-temperature oxidation. With these plates, boilers can operate effectively for longer periods and with little maintenance, increasing efficiency and decreasing downtime.

ASTM A387 Grade 5 Plates in Reactors

Reactor vessels are essential in petrochemical processing since they initiate and accelerate chemical reactions. These vessels should withstand high pressure, heat, corrosion, and severe environmental conditions to ensure safety, reliability, and efficiency. ASTM A387 Grade 5 plates are a favourite choice for reactors since they offer impressive resistance to high-temperature corrosion and high-pressure oxidation. As a result, these plates increase the longevity of the reactor vessel and contribute to the reliability of the processing plant.

Benefits of ASTM A387 Grade 5 Plates

The use of ASTM A387 Grade 5 plates in petrochemical processing has immense benefits, including high-temperature resistance, exceptional corrosion and oxidation resistance, high strength, and an extended lifespan. These plates can perform in the harshest chemical environments and contribute to petrochemical processing equipment’s overall security, dependability, and longevity.


In summary, ASTM A387 Grade 5 plates have become a standard material in the petrochemical processing industry for their excellent resistance to high-temperature corrosion and high-pressure oxidation. Pressure vessels, boilers, and reactors all benefit from these plates’ properties, contributing significantly to the reliability and safety of petrochemical processing equipment. So it’s no wonder why the industry’s demand for these plates is increasing. By choosing ASTM A387 Grade 5 plates, petrochemical processing companies can reduce maintenance costs, increase equipment lifespan, and improve productivity and efficiency. Ultimately, it’s about ensuring safe and secure operations while producing high-quality products.