ASTM GH2747 High Temperature Nickel Alloy Tube Haynes 747 Tube Seamless Steel Pipe

Material

ASTM GH2747 is a high-temperature nickel alloy known for its excellent strength and corrosion resistance at elevated temperatures. This material is commonly used in environments where extreme heat and corrosive conditions are prevalent, such as in aerospace, power generation, and chemical processing industries.

Specification

ASTM GH2747 tubes are manufactured to meet stringent specifications that ensure their performance in high-temperature applications. These tubes are typically seamless, providing superior strength and resistance to pressure. The Haynes 747 alloy is a specific formulation within this category, known for its enhanced properties.

Key Features

• High-Temperature Resistance: Capable of withstanding extreme temperatures without losing structural integrity.
• Corrosion Resistance: Excellent resistance to oxidation and other forms of corrosion.
• Strength: Maintains high strength even at elevated temperatures.
• Durability: Long-lasting performance in harsh environments.
• Versatility: Suitable for a wide range of applications.

Chemical Composition

The chemical composition of ASTM GH2747 is crucial to its performance. Below is a typical composition table:

Mechanical Properties

The mechanical properties of ASTM GH2747 are designed to meet the demands of high-temperature applications. The following table outlines these properties:

Steel Grade

The Haynes 747 tube falls under the category of high-temperature nickel alloys, specifically designed for applications requiring exceptional heat and corrosion resistance.

Application

ASTM GH2747 tubes are widely used in:

• Aerospace: Engine components, turbine blades, and exhaust systems.
• Power Generation: Boilers, heat exchangers, and steam turbines.
• Chemical Processing: Reactors, piping systems, and heat treatment equipment.

Possible Alternative Grades

While ASTM GH2747 is a preferred choice for many high-temperature applications, there are alternative grades that may be considered based on specific requirements:

• Inconel 625: Known for its excellent corrosion resistance and strength.
• Hastelloy X: Offers good oxidation resistance and high-temperature strength.
• Alloy 718: Suitable for both high-temperature and cryogenic applications.

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