The SA 387 Gr 5 Plate is a high-quality alloy steel plate which has chromium and molybdenum in its chemical composition. They have high resistance to heat and corrosion, which is why they are used in pressure vessels and industrial boilers.
Where resistance to high temperature and good anti-corrosion characteristics are required, is a carbon alloy steel plate is a material to consider. It is a pressure vessel grade steel which is used commonly by fabricators who supply the oil and gas industry.
Due to the materials excellent corrosion resistant properties, ASME SA 387 GRADE 91 Class 1 is also an option for use in sour service environments. The material has good weldability and with its heat resistant qualities, the material is a highly versatile steel which can be used in numerous applications.
Equivalents for ASME SA387 Grade 91 Alloy Steel Plates
Specifications for ASME SA387 Grade 91 Alloy Steel PlatesChromium & Molybdenum content (according to the ASME specification)