Duplex steel 329 flanges are highly resistant to corrosion and are recognized for their unique properties. They contain 4% molybdenum, 7% nickel and 25% chromium, making them a very desirable alloy to use in a variety of applications. Other properties include low thermal expansion coefficient, high thermal conductivity, and exceptional quality finishing. These properties make duplex 329 flanges highly durable, able to withstand high temperature and pressure.
What are Duplex Steel 329 Flanges
What are Duplex Steel 329 Flange and Fittings? These stainless steels are composed of a combination of austenitic and ferritic elements. They are corrosion resistant and are ideal for comprehensive machinery and production details. They are particularly suited for forged valve pumps and centrifuges. Forging Duplex 329 rings requires high temperatures of about 1250 degrees C and air cooling after forging. They are also difficult to weld and have a low machinability.
Duplex 329 Rings exhibit a low cost, high corrosion resistance, and high strength. Duplex 329 Flanges are typically 400-500 MPa and are used in chemical pressure vessels and heat exchangers. These rings are soft, ductile, and have a high chromium content. However, this material is brittle at extreme temperatures and should only be used in applications where temperatures do not exceed 300 degrees Fahrenheit.
When you are looking for Duplex Steel 329 Flanges, you should know that it has a lower alloy content than Alloy 2205, making it less expensive. Because 329 is less expensive, it can be purchased in full mill runs. It also comes in bright and black finishes. In addition, it is available in annealed and forged conditions. This makes 329 Duplex Steel Flanges very popular with industrial applications.
Applications of Duplex Steel 329 Flanges
Duplex Steel 329 Flanges are available in full sizes of 1/2” NB to 48” NB with pressure ratings ranging from 150# to 2500#. Their unique features include high machinability and harness, as well as excellent pressure and temperature resistance. Here’s a look at some of the most common applications for this stainless steel. You can use them to make pipe connections in a variety of applications, including:
Type 329 stainless steel is a duplex austenitic-ferritic alloy. Its excellent corrosion-resistance and machinability make it an ideal material for a wide range of applications. It is especially effective for parts requiring extensive machining, such as forged valve pumps and centrifugal machines. Stainless Steel 329 can be forged between 1250/1050C and 2280/1900F and is air cooled after forging. Because of its high strength and toughness, it is highly resistant to corrosion, allowing for seamless connections.
While alloy 329 is not quite as strong as grade 2205, it has an impressively high weldability. It can be welded like any austenitic material, but requires less heat than its austenitic counterparts. For maximum results, weld beads should be small and there should be no oxidation or pitting. Welding with AISI 329 requires special care because the welds should not be too close to each other because the alloy may interact negatively with one another.
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