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ASTM A213 T11 seamless alloy steel pipe is a key material widely used in industries such as boilers, superheaters, and heat exchangers. Known for its excellent performance and stability, it has earned the trust of users across various sectors.
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1. Standard Compliance
ASTM A213 T11 pipe complies with the ASTM A213/A213M standard, which specifies seamless ferritic and austenitic alloy steel tubes for high-temperature services in boilers, superheaters, and heat exchangers. It must also meet the requirements of TSG D7002, the pressure piping component type testing regulation.
2. Product Specifications
Outer Diameter: 21.3 mm to 760 mm
Wall Thickness: 2.0 mm to 130 mm
3. Manufacturing Process & Delivery Condition
A213 T11 seamless alloy steel pipes are produced using hot rolling, cold drawing, or hot expansion processes. They are delivered in heat-treated condition to ensure performance reliability.
4. Chemical Composition
ASTM A213 T11 alloy steel pipe has a tightly controlled chemical composition to ensure its high-temperature and corrosion resistance:
Carbon (C): 0.05–0.15%
Silicon (Si): 0.50–1.00%
Manganese (Mn): 0.30–0.60%
Phosphorus (P): ≤0.025%
Sulfur (S): ≤0.025%
Chromium (Cr): 1.00–1.50%
Molybdenum (Mo): 0.44–0.65%
This precise alloying grants the pipe superior performance in extreme environments.
5. Mechanical Properties
A213 T11 seamless alloy steel pipe offers excellent mechanical strength and durability:
Tensile Strength: ≥ 415 MPa
Yield Strength: ≥ 205 MPa
Elongation after Fracture: ≥ 30%
These properties make it suitable for high-pressure, high-temperature applications. It also has good weldability and machinability, simplifying installation and maintenance.
6. Production Quality and Control
Produced with advanced rolling and heat treatment techniques, A213 T11 seamless alloy steel pipe features smooth internal and external surfaces, high dimensional accuracy, and stable form. Stringent quality control measures are applied throughout manufacturing to monitor chemical composition, mechanical performance, and surface quality, ensuring compliance with all technical standards.
7. Application and Market Outlook
Thanks to its high-temperature resistance, mechanical strength, and thermal conductivity, ASTM A213 T11 seamless alloy steel pipe is a preferred material in demanding applications. It supports stable operation, enhances equipment efficiency, and helps reduce energy consumption.
With the continued development of industrial technology, the demand for high-performance seamless pipes is growing. ASTM A213 T11 stands out in the market and is expected to see broader application and increased market share in the future.
Conclusion
In summary, ASTM A213 T11 seamless alloy steel pipe is a critical material in modern industry. With its outstanding properties, reliable manufacturing process, and wide application potential, it will continue to play a vital role in advancing industrial sustainability and performance.
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