ASTM A335 P9 Seamless Pipes

ASTM A335 P9 Chrome Moly Pipes Manufacturer and Supplier

The USA Piping Solution is one of the suppliers of ASTM A335 P9 Seamless Ferritic Alloy Steel Pipe. This standard is used to establish ASTM A335 P9 Chrome Moly Pipe to strictly be used in high temperature conditions. This material is commonly known as boiler steel pipe and meets the specifications of both nominal and minimum wall thickness pipes, and is very easy to fabricate, such as bending, flanging, type of other forming processes and fusion welding.

What are ASTM A335 P9 Pipes?

The ASTM A335 P9 pipes are a chrome-moly alloy that is made up of 8-19% chromium, 0.90- 1.10% molybdenum. The composition of these two materials will give a higher tensile and yield strength, along with providing resistance to oxidation. On the other hand, molybdenum is essential in enhancing general strength, elasticity and hardenability and is the major component in enhancing high temperature resistance (upto 540 o C to 750 o C) and also withstanding softness and embrittlement. This ASME SA335 Grade P9 Pipe (UNS K91560) is very strong in mechanical strength, with a minimum tensile strength of 415 Mpa, and a minimum yield strength of 205 Mpa.

ASTM A335 P9 Alloy Steel Seamless Pipe is a critical requirement in high temperature, high pressure and corrosive conditions in the petroleum, chemical industry, electric power and boiler systems. This renders it a very vital material when it comes to P9 high pressure steel pipes. USA Piping Solution has large stocks of the ASTM A335 P9 Seamless Pipe of various sizes (e.g., 1/2 inch NPS to 30 inch NPS) and wall thicknesses (STD, through XXH) and targets the market of the Heater Tube. We maintain the high quality standards e.g. we maintain Vanadium level at a maximum of 0.03% in case of refinery applications in order to reduce the risk of creep cracking.

ASTM A335 P9 Seamless Pipe Specifications

Chemical Composition of ASTM A335 P9 Chrome Moly Pipe

Mechanical Properties of ASME SA335 Grade P9 Pipe

Equivalent Grades for ASTM A335 P9 Pipes

Heat Treatment for P9 High Pressure Steel Pipe

The ASTM A335 P9 pipe is subjected to heat treatment to achieve the specified mechanical properties and microstructure.

Applications of ASTM A335 P9 Alloy Steel Seamless Pipe

• High-temperature furnace systems: Used in cracking coils, radiant tubes, and reformer outlet headers.
• Refinery heater tubes: Where thermal cycling and high internal pressure are routine.
• Boilers and superheaters: Operating in environments up to 750°C, with stringent mechanical demands.
• Petrochemical and synthetic gas units: For transporting corrosive and hot process fluids.
• Power industry steam piping: In systems that require long-term dimensional stability under load.

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Looking for dependable ASTM A335 P9 pipes that meet your heater tube and refinery system demands? USA Piping Solution company is the supplier of Alloy Steel Pipes and Tubes that are developed to perform well in thermal performance and fabrication. Contact us today to quote as well as enjoy our stringent quality standards, superb delivery and international sourcing of materials.

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