ASTM A 335 P9 Pipes,Seamless Chrome Moly Pipe,ASTM A335 P9 Seamless Pipe

We are a professional A335 P9 Pipes,ASTM A335 Grade P9 seamless pipe supplier and exporter in China.

A335/SA335 Seamless P9 pipe is often used in the oil and natural gas industry due to its high strength. P9’s great performance properties make it suitable for energy-related applications. A335 P9 pipe is suitable for:

  • Refinery
  • Machine building
  • Oil and gas
  • Power generation
  • Petrochemicals
  • Gas processing
  • Fertilizer
  • Sugar

 

Standard Specification Of ASTM A335 Grade P9 Alloy Steel Pipe

ASME SA335 Grade P9 Pipes Standard ASTM A335 P9, SA335 P9 (with IBR Test Certificate)
ASTM A335 Grade P9 Pipes Size 1/2” NB to 36” NB
P9 Grade Steel Pipes Thickness 3-12mm
ASME SA335 Grade P9 Pipes Schedules SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS, All Schedules

A335/SA335 P9 contains Chromium – 8.00% – 10.00%,that’s why it was called P9 grade.

A335 Grade P9 pipe is also a starting material to make the A234 WP9 pipe fittings.Elbow,Tee,reducer etc.A182 F9 Flange is used to connect the line pipes.

A335 Grade P9 Pipe is one of the High alloy boiler steel for operation at elevated temperatures supplied in the form of pipes, flanges, bars and forgings with a chromium content of 9% and 1% of Molybdenum. The material shows a martensitic structure after tempering and ferritic structure in the annealed state, it is characterized by high resistance to creep/oxidation and cracks and low thermal expansion. Steel designed for operation at temperatures of 550-650C for power and petrochemical industry for pipelines, secondary and outlet steam superheaters, steam and outlet collectors, turbine parts, flanges, connectors, and heat exchangers.

A335 P9 Pipes equivalent material

X11CRMO9-1, X12CRMO9-1, 1.7386 – HIGH-ALLOY BOILER STEEL FOR OPERATION AT ELEVATED TEMPERATURES ACCORDING TO EN 10216-2, A213/A335.

ASTM International BSi – British Standards institute Material
A335 Gr. P9          3604/629 9% Chrome 1% Moly

Alloy Steel A335 P9 Seamless Pipes And Tubes Chemical Composition

Grade C Mn P S Si Cr Mo
P9 0.15 max 0.30-0.60 0.025 0.025 0.25-1.00 8.00-10.00 0.90-1.10

Mechanical Properties Of ASME SA335 Alloy Steel P9 Pipe

Grade Tensile Strength, MPa Yield Strength, MPa Elongation, %
P9      380 min 205 min 30 min


Sizes

1/4” Nominal to 24”O.D. Seamless Alloy Pipe
Wall Thickness – Schedule 40 through XXH

Length: Single Random Length, Double Random Length, 20 ft, 40 ft
Ends Types: Plain, Beveled

ASTM A335 / A335M

Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service 

This specification covers seamless ferritic alloy-steel pipe for high-temperature service. The pipe shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding. Grade P2 and P12 steel pipes shall be made by coarse-grain melting practice. The steel material shall conform to chemical composition, tensile property, and hardness requirements. Each length of pipe shall be subjected to the hydrostatic test. Also, each pipe shall be examined by a non-destructive examination method in accordance to the required practices. The range of pipe sizes that may be examined by each method shall be subjected to the limitations in the scope of the respective practices. The different mechanical test requirements for pipes, namely, transverse or longitudinal tension test, flattening test, and hardness or bend test are presented.

Inspection and Test: Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength,Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test,No-destructive Test, Hydrostatic Test.

Material & Manufacture of ASTM A335 P9 alloy steel pipe

Pipe may be either hot finished or cold drawn with the finishing heat treatment noted below.

Heat Treatment of ASTM A335 P9 alloy steel pipe

  • A / N+T
  • N+T / Q+T
  • N+T

Mechanical Tests Specified of ASTM A335 P9 alloy steel pipe

  • Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test
  • For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot. For small lots, at least one pipe shall be tested.

How to order our ASTM A335 P9 Seamless Pipe?

ASTM A335 P9 Seamless Steel Pipe 6″ x Sch80 x 6m

 

ASTM A335 P9 Seamless steel pipes A335 Gr P9 Pipe