Super Duplex Steel Dish Ends Manufacturer

Super duplex steel dish ends or vessel heads are critical parts in pressure vessels, tanks, and industrial use. They are designed as top cylindrical vessels, providing strength and pressure resistance. At Astech Tube, we manufacture Super duplex steel dish ends that meet stringent industry standards. Our technical skills guarantee every product is of superior quality and reliability. The widely used grade Super duplex 2507 dish end is renowned for its outstanding resistance to chloride induced stress corrosion cracking. Its high chromium, molybdenum and nitrogen content provides it with superb protection against pitting, crevice corrosion, and general corrosion.

The production process of Super duplex steel dish ends starts with melting high-quality scrap steel and certain alloying elements in an electric arc furnace. The molten steel is then purified through Argon Oxygen Decarburization (AOD), which improves purity by decarburizing, refining sulfur and degassing. Depending on the final product requirements, it undergoes hot working at temperatures between 1024 °C and 1232 °C or cold forming. Solution annealing around 1052-1125 °C is followed to obtain an even structure and relieve the residual stresses. It is then forged or rolled into accurate dimensions for quality and durability.

It is perfect for pressure vessels, heat exchangers, boilers, and storage tanks. Due to their resistance to corrosion and their ability to withstand high pressure, these ASME SA 240 super duplex sheets are best suited for chemical processing, oil and gas and marine. These ASME SA 240 super duplex sheets meet standards such as ASME, DIN 28011 and IS 2825 providing dependability in challenging conditions. Long-lasting performance is provided with high mechanical strength, minimizing the need for regular maintenance.

Our team securely packs super duplex steel dish ends to prevent damage during transit. Every product passes rigorous quality inspections, such as hydrostatic, ultrasonic and radiographic testing, to confirm that it complies with industry standards. Looking for custom super duplex steel dish ends with ASME certification? Get in touch with us today to discuss your project needs.