ASME SA213 TP347H Stainless Steel Seamless Tube For Power Plant Heat Exchanger Application

Grade TP347H is a high-carbon austenitic stainless steel designed for high-temperature applications, offering excellent resistance to intergranular corrosion and oxidation. Its stabilization with niobium enhances its mechanical properties, making it suitable for demanding environments in power generation, petrochemical, and chemical processing industries.

ASTM SA213:Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, And Heat Exchanger tubes;

ASTM A213: Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, And Heat Exchanger tubes;

ASTM A262: Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels.
ASTM A941: Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys.
ASTM A1016: Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless-Steel Tubes.
ASTM E112: Test Methods for Determining Average Grain Size.

Chemical Composition:

Mechanical Properties:

Key Features:
High-Temperature Stability:
Enhanced by the addition of niobium, which improves creep strength and resistance to stress rupture.

Corrosion Resistance:
Excellent resistance to intergranular corrosion, particularly in high-temperature environments.

Oxidation Resistance:
Performs well in oxidizing conditions up to 1500°F (816°C).

Weldability:
Good weldability with minimal risk of sensitization due to the stabilization by niobium.

Applications:

1. Power Generation

• Boiler Tubes: Used in boiler tubes and superheater tubes that operate at high temperatures, providing excellent creep resistance.
• Heat Recovery Systems: Ideal for heat recovery systems where efficient heat transfer and durability are critical.
• Steam Generators: Suitable for steam generator tubing in power plants due to their high-temperature stability.

2. Petrochemical Industry

• Refinery Equipment: Used in catalytic crackers, reformers, and other refinery equipment that operate at elevated temperatures.
• Furnaces and Boilers: Suitable for components in furnaces and boilers where long-term resistance to high temperatures and corrosive environments is needed.
• High-Temperature Processing: Ideal for high-temperature processing units such as hydrocrackers and hydrotreaters.

3. Chemical Processing Industry

• Heat Exchangers: Used in heat exchangers that process hot corrosive fluids, ensuring high performance and longevity.
• Reactors and Pressure Vessels: Suitable for reactors and pressure vessels dealing with high-temperature chemical reactions.
• Distillation Columns: Ideal for high-temperature distillation processes where stability and corrosion resistance are essential.