ASTM B564 UNS N06625 Flange

INCONEL ALLOY 625
UNS Number N06625
Other common names: Alloy 625

The ASTM B564 UNS N06625 Flange follows the ASTM International standards and is considered a standard flange for use in high-pressure and high-temperature applications. It is available in various sizes and types, such as socket weld flange, weld neck flange, slip-on flange, blind flange, and threaded flange, among others. 

Inconel 625 is a corrosion and oxidation resistant nickel alloy that is used both for its high strength and outstanding aqueous corrosion resistance. Its outstanding strength and toughness is due to the addition of niobium which acts with the molybdenum to stiffen the alloy’s matrix. Alloy 625 has excellent fatigue strength and stress-corrosion cracking resistance to chloride ions. This nickel alloy has excellent weldability and is frequently used to weld AL-6XN. This alloy resists a wide range of severely corrosive environments and is especially resistant to pitting and crevice corrosion. Some typical applications Inconel 625 is used in are chemical processing, aerospace and marine engineering, pollution-control equipment, and nuclear reactors.

In what form is Inconel 625 available?
• Sheet
• Plate
• Bar
• Pipe & Tube (welded & seamless)
• Wire

What are the characteristics of Inconel 625?
• High creep-rupture strength
• Oxidation resistant to 1800° F
• Seawater pitting and crevice corrosion resistant
• Immune to chloride ion stress corrosion cracking
• Non-magnetic

Chemical Composition, %

The ASTM B564 UNS N06625 Flange is widely used in various industries, including oil and gas, chemical, petrochemical, fertilizer, pharmaceutical, and power generation. It is commonly used in applications where the environment contains corrosive substances such as sulfuric acid, hydrochloric acid, and seawater. It is also ideal for applications in which high thermal and mechanical stress are present, such as heat exchangers, valves, pumps, and turbines.

One of the significant advantages of using ASTM B564 UNS N06625 Flange is its ability to withstand high temperatures and pressure. It has a high melting point of 1350°C and can resist temperatures of up to 1000°C. Additionally, it can handle pressures of up to 220 bar. Its high strength and resistance to corrosion make it an excellent choice for use in aggressive environments.