ASTM A335 P9 Seamless Steel Tubing

Specifications: ASTM A335 P9, ASME SA 335

Dimension: 1/8” to 24”

Wall thickness: SCH10 to 160

Length: 1m to 12m or Custom Length

Delivery condition:+NT

Application: Oil refinery, sugar, fertilizer, petrochemical, power generation (nuclear/thermal), boiler, pressure vessel and general engineering applications

WIHO metals is a leading Chromoly steel tube supplier and manufacturer, we supply ASTM A335 Grade P9 alloy steel pipe and their equivalent material for boiler systems in various sizes and specifications. 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.


Grade P9 and T9 tubing

T9 and P9 steel pipe are included in ASTM or ASME suited for boiler 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.

Both of them contain 9-Chromium-1 Molybdenum alloy, which offers very good corrosion resistance and oxidation resistance with good high-temperature strength. Grade T9 specified in ASTM A213 which does Ferrite and Austenitic boiler superheater and heat exchanger seamless steel tube.


A335 P9 Tubing Equivalent Material

K50400  T9 12Cr9Mo X12CrMo91 STBA26 /

ASTM A335 P5 Pipe Chemical Composition

Grades C Si Mn P S Cr Mo
P5 ≤ 0,15 ≤ 0,50 0,30-0,60 ≤ 0,025 ≤ 0,025 4,0-6,0 0,45-0,65


ASTM A335 P9 Mechanical Properties

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


Get ASME SA335 P9 High-Pressure Alloy round Pipe and hollow section with a variety of wall thicknesses or for more information on our extensive steel alloys inventory, please contact us or fill in the form below.

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