ASTM A213 T11 K11597 Alloy Steel Seamless Tube , Heater Tube For Oil And Gas Industry

ASTM A213 T11 K11597 Alloy Steel Seamless Tube , Heater Tube For Oil And Gas Industry

ASTM A213 T11 (UNS K11597) is a standard-grade ferritic chromium-molybdenum (Cr-Mo) alloy steel seamless tube specified under the ASTM A213 standard. This standard governs seamless ferritic and austenitic alloy steel tubes exclusively designed for high-temperature and high-pressure service in boilers, superheaters, reheaters, and heat exchangers in power generation, petrochemical, and industrial thermal systems. As a low-alloy heat-resistant steel, T11 contains precise proportions of chromium and molybdenum elements, which significantly enhance its high-temperature oxidation resistance, creep resistance, thermal fatigue resistance, and long-term structural stability compared to ordinary carbon steel tubes. It is manufactured via a fully seamless hot rolling or cold drawing process without any welded seam, eliminating structural weak points and ensuring reliable performance under extreme high-pressure and high-temperature working conditions.

Chemical Composition(%):

Mechanical Properties:

Key Core Features:

• Excellent High-Temperature Performance
• High Pressure-Bearing Capacity
• Superior Weldability & Processability
• Good Thermal Fatigue Resistance
• Reliable Structural Stability
• Ductility

Main Industrial Applications:

• Power Generation Industry
• Superheaters and Reheaters
• Boiler Water Wall Tubes
• Petrochemical Industry
• Industrial Thermal Systems
• Petroleum Refining (Oil & Gas)
• Fired Heater Tubes
• Hydrocracking and Hydrotreating Reactor internals
• Chemical Fertilizer Plants
• Pressure Vessels
• Energy & New Energy Equipment
• High-Precision Thermal Equipment