ASME B16.5 Class 900 flanges are designed for high-pressure and high-temperature piping systems used in oil & gas, petrochemical, offshore, and power generation industries.
The Class 900 pressure rating represents one of the higher levels within the ASME B16.5 standard, offering significantly greater strength compared with Class 150, 300, and 600 flanges.
ASME B16.5 Class 600 flanges are engineered for high-pressure piping systems, offering thicker flange bodies, larger diameters, and reinforced bolt patterns compared to lower classes.
ASME B16.5 Class 400 flanges are designed for medium-to-high pressure piping systems, providing larger diameters, thicker flange bodies, and increased bolt patterns compared to Class 150 and 300.
ASME B16.5 Class 300 flanges are engineered for medium- to high-pressure piping systems, offering increased thickness, larger bolt patterns, and superior strength compared to Class 150.
ASME B16.5 Class 150 flanges are the most widely used piping components in industrial systems, providing reliable sealing performance for low-pressure pipelines across oil & gas, chemical processing, water treatment, and power generation.
PREN (Pitting Resistance Equivalent Number) is a composition-based indicator used to evaluate the pitting corrosion resistance of austenitic, duplex, and super duplex stainless steels in chloride-containing environments.
