Alloy Steel Pipe

  • SA213-T91 High-strength Alloy Steel Tube for High-temperature Service
    Brief: SA213-T91 is a high-strength alloy steel tube used primarily for high-temperature service in power generation and petrochemical industries. It is a chromium-molybdenum (Cr-Mo) ferritic steel, known for excellent creep strength, oxidation resistance, and thermal stability.
  • ASTM A335 Grade P91 High-Temperature Service Pipe
    Brief: The ASTM A335 Gr. P91 seamless pipe is an advanced ferritic alloy steel pipe specifically developed for high-temperature and ultra-high-pressure service. With a nominal composition of 9% chromium, 1% molybdenum, and controlled additions of vanadium and niobium, Grade P91 offers significantly improved creep strength and oxidation resistance compared to traditional Cr-Mo grades like P22 or P9.
  • ASTM A213 Grade T22 Alloy Steel Tube
    Brief: ASTM A213 Grade T22 alloy steel tube is a high-performance chromium-molybdenum (2.25Cr–1Mo) steel tube designed for high-temperature and high-pressure service. It is widely used in power generation, petrochemical, and industrial boilers, where durability, creep resistance, and oxidation resistance are critical.

    T22 offers a perfect balance of strength, thermal stability, and long-term service performance, making it suitable for superheaters, heat exchangers, and high-temperature piping systems. The seamless manufacturing process ensures a uniform microstructure, high integrity, and reliable mechanical properties.
     
  • ASTM A335 Grade P22 High-Temperature Service Pipe
    Brief: ASTM A335 Grade P22 seamless pipe is a chromium-molybdenum (2.25Cr–1Mo) alloy steel pipe designed for high-temperature and high-pressure service. It is widely used in industries requiring reliable performance under elevated temperature conditions, such as power generation and petrochemical processing.
  • ASTM A335 Grade P9 High-Temperature Service Pipe
    Brief: The ASTM A335 Gr. P9 seamless tube is a chromium-molybdenum (Cr-Mo) alloy steel pipe primarily used for high-temperature service. With a nominal composition of 9% chromium and 1% molybdenum, Grade P9 offers excellent oxidation resistance and high-temperature strength, making it ideal for demanding applications in power generation, petrochemical, and refining industries.
  • ASTM B444 Grade UNS N06625 Seamless Tube
    Brief: ASTM B444 UNS N06625 tube (commonly known as Alloy 625) is a high-performance nickel-chromium-molybdenum alloy tube designed for extreme corrosion and high-temperature environments. It offers outstanding strength, oxidation resistance, and corrosion resistance, making it suitable for the most demanding industrial applications.

    UNS N06625 is strengthened by niobium (Nb) and molybdenum, providing excellent mechanical properties without the need for heat treatment. Its superior resistance to pitting, crevice corrosion, and stress corrosion cracking makes it a preferred material in aggressive chemical and marine environments.

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