Alloy grade T9 contains 9-Chromium-1 Molybdenum alloy, it offers very good corrosion resistance and oxidation resistance with good high-temperature strength, has been widely used in high pressure, ultra-high pressure, subcritical power station boiler superheater, header and main steam duct. Grade T9 specified in ASTM A213 which do Ferrite and Austenitic boiler superheater and heat exchanger seamless steel tube.

  • Standards: ASTM A213
  • Dimension: 1/8” to 24”
  • Wall thickness: SCH10 to 160
  • Length: 1m to 12m or custom Length
  • Application: For superheater, reheater pipe, header and steam pipe under 600℃ in high pressure, ultra-high pressure and subcritical power station, nuclear power heat exchanger and oil cracking unit furnace pipe.

T9 Equivalent Material

K50400  P9 12Cr9Mo X12CrMo91 STBA26 /

ASTM A213 T9 Tube Chemistry Composition

Grade C Mn P S Si Cr Mo
T9 ≤0.15 0.30-0.60 ≤0.025 ≤0.025 0.25-1.00 8.00-10.0 0.9-1.1

ASTM A213 T9 Tube Mechanical Properties

Material Tensile Strength (Mpa) Yield Strength (Mpa) Elongation(%) Hardness(HRB)
T9 ≥415 ≥205 ≥30 ≤85

ASTM A213 covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes. WLD steel supplies alloy steel ASTM A213 T9 seamless steel tubes manufactured in hot finished or cold finished in various sizes and specifications and equivalent material for boiler and economizer, heater, superheater and reheater system. If you are looking for this material, please contact us or get a quotation. Not only do we have all kinds of sizes, but we also have all kinds of sizes that are hard to find.