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Prime Tube Impex is a leading Alloy Steel Pipe P5/P9/P11/P22. Our goal is to fulfill the highest expectations of our customers for delivery and product quality of ASTM A335 Alloy Steel Seamless Pipes & Tubes. Information for those interested in buying ASTM A335 Alloy Steel Seamless Pipes & Tubes. the most trusted source of ASTM A335 Alloy Steel Seamless Pipes & Tubes, More about Prime Tube Impex for all Pipes & Tubes.

alloy steel P5/P9/P11/P22 pipes dealer

Prime Tube Impex is one of the major Indian manufacturers, exporter & suppliers of ASTM A335 Alloy Steel Seamless Pipes & Tubes & OCTG, CRA (Corrosion-Resistant Alloy) Seamless Tubes, Stainless Steel, Super Duplex, Duplex, Welded & Seamless, Carbon Steel Seamless Pipes, Tubes, Capillary Pipes & ‘U’ Tubes for applications in oil & gas, LNG, Thermal & Nuclear Power Plants, Chemical Industries, Fertilizers Plants, (petro) chemical, shipbuilding, desalination, water treatment, energy industries, EPC and Pipes for General Engineering Purpose.

Prime Tube Impex operates according to an certified quality programme. A complete range of testing facilities on-site contributes to consistent quality control.

Types Of ASTM A335 Alloy Steel Seamless Pipes

Alloy Steel Pipes Alloy Steel Seamless Pipes
ASME SA335 Alloy Steel Pipes ASTM A335 Alloy Steel Seamless Pipes
JFE Steel ASTM A335 Gr P1 Pipes Alloy Steel ASTM A335 Grade P1 Pipes
Grade P5 Alloy Steel Pipes Supplier Tenaris ASTM A335 Seamless Pipes
Grade P12 Alloy Steel Pipes Alloy Steel ASTM A335 Gr. P9 Pipes Dealer
Grade P91 Alloy Steel Pipes Exporter Alloy Steel ASTM A335 Gr. P22 Pipes
ASTM A335 Alloy Steel P9 High Pressure Steel Pipe ASTM A335 Chrome Moly Pipe
ASTM A335 Grade P1 Alloy Steel Pipes Tenaris ASTM A335 Seamless Pipes
Jindal Saw Ltd. A335 Grade P1 Alloy Steel Seamless Pipes Nippon Steel Alloy Steel Seamless Pipes
Tubos Reunidos ASTM A335 Grade P1 Seamless Pipes ArcelorMittal ASTM A335 Grade P1 Alloy Steel Pipes
Alloy Steel Piping Stockist in India Vallorec & Mannesman Alloy Steel Gr. P1 Pipes
Alloy Steel A213 Tubing Dealer Alloy Steel Pipes and Tubes Exporter

Alloy Steel Pipe P5/P9/P11/P22 Specification

Alloy Steel Pipe ASTM A335 GR P5 | P9 | P11 | P22 | P91 | P91 with IBR Certified (ASTM A335 / A335M – 11 Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service)

ASTM A335 Alloy Steel Seamless Pipes

This specification covers nominal wall and minimum wall seamless ferritic alloy-steel pipe intended for high temperature service. Pipe ordered to this specification 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.

ASTM A335 GR P5 | GR P9 | GR P11 | GR P22 | GR P91.

Name: ASTM SA335 Alloy Steel Tubes for boilers, superheaters and heat exchangers

Size (mm): O.D.: 28-168; W.T.: 2∼30; L: max 12000


  1. Specifications: ASTM A335 (ASME SA335)
  2. Specifications: diameter 320 to 127 mm; thickness: 0.4 to 12.7 mm; length: 6 m and above; and other specifications in accordance with customer requirements.

Features Specifications:

Standard Steel Code Tensile Strength (MPa) Yield Strength (MPa) Elongation Percentage(%) Impact Power(J) Rigidity
ASME SA335 SA335 P11 ≥415 ≥205 ≥22 ≥35 ≤163HB
SA335 P12 ≥415 ≥220 ≥22 ≥35 ≤163HB
SA335 P22 ≥415 ≥205 ≥22 ≥35 ≤163HB
SA335 P5 ≥415 ≥205 ≥22 ≥35 ≤187HB
SA335 P91 585∼760 ≥415 ≥20 ≥35 ≤250HB
SA335 P92 ≥620 ≥440 ≥20 ≥35 ≤250HB

ASTM A213 Seamless Ferritic and Austenitic Alloy-Steel Boiler, Heat-Exchanger Tubes

ASTM A213 Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, Heat-Exchanger Tubes.

Boiler tube accord to standard ASTM SA213 / A213 – Grades T5, T9, T11, T22, T91

Foreign boiler tube Standard:

  • GB3087 – Chinese National Standard
  • GB5310 – Chinese National Standard
  • ASME SA106 – American Boiler and Pressure Vessel Code
  • ASME SA333 – American Boiler and Pressure Vessel Code
  • ASME SA335 – American Boiler and Pressure Vessel Code
  • DIN17175 – German industrial standard
  • EN10216-2 – European Pressure Piping

The main production steel grades:

10 , 20 , 20G , 20MnG , 25MnG , 15CrMoG , 12Cr2MoG , 12Cr1MoVG , 10Cr9Mo1VNb , SA106B ,SA106C , SA333 I level, SA333 VI level, SA335 P5 , SA335 P11 , SA335 P12 , SA335P22 , SA335 P91 ,SA335 P92 , ST45.8 / Ⅲ , 15Mo3 , 13CrMo44 , 10CrMo910 , 15NiCuMoNb5-6-4, etc.

Boiler and heat exchanger tube

Standard :

JIS  G3461 —- Japanese Industrial Standard

JIS  G3462 —- Japanese Industrial Standards

Uses :

For the boiler pipes, tobacco pipes, superheater tubes, air preheater tubes.

The main production steel grades :

STB340 , STB 410 , STBA22 , STBA23 so on.

Chemical Component

Standard Steel Code Chemical Component(%)
C Si Mn P S Cr Mo Cu Ni V Al W Nb N
ASME SA335 SA335 P11 0.05∼







≤0.030 1.00




SA335 P12 0.05∼


≤0.50 0.30∼



≤0.030 0.80




SA335 P22 0.05∼


≤0.50 0.30∼



≤0.030 1.90




SA335 P5 ≤0.15 ≤0.50 0.30∼



≤0.030 4.00/




SA335 P91 0.08∼







≤0.010 8.00












SA335 P92 0.07∼


≤0.50 0.30∼



≤0.010 8.50




B0.001 0.006












Type of Steel Pipes OD(D) WT(S)
Cold Drawn Steel Pipe OD(mm) Tolerance (mm) Wall Thickness(mm) Tolerance (mm)
>30∼50 ±0.3 >3∼20 ±10%
>114∼159 ±0.8% ≤30 ±10%
>159∼219 ±1.0%
Hot Rolled Steel Pipe >219∼457 ±1.0% ≤20 +10%,-12.5%
>20∼40 +10%,-10%

Mechanical Properties of ASTM A335 P11

Tensile strength, min, (MPa) 415
Yield strength, min, (MPa) 205
Elongation, min, (%), L/T 30/20

Material & Manufacture

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

Heat Treatment

  • A / N+T
  • N+T / Q+T
  • N+T

Mechanical Tests Specified

  • 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.
  • For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe.

Notes for Hardness Test:

  • P11 shall not have a hardness not exceeding 250 HB/265 HV [25HRC].

Notes for Bend Test:

  • For pipe whose diameter exceeds NPS 25 and whose diameter to wall thickness ratio is 7.0 or less shall be subjected to the bend test instead of the flattening test.
  • Other pipe whose diameter equals or exceeds NPS 10 may be given the bend test in place of the flattening test subject to the approval of the purchaser.
  • The bend test specimens shall be bent at room temperature through 180 without cracking on the outside of the bent portion.

Exports of Alloy Steel Pipe P5/P9/P11/P22:

Prime Tube Impex exports Alloy Steel Pipe P5/P9/P11/P22 in UAE, Bahrain, Saudi Arbia, Oman, Kuwait, Italy, Egypt, Indonesia, Malaysia, United States, Mexico, Chine, Brazil, Peru, Nigeria,Jordan, Dubai, Thailand (Bangkok), Venezuela, Iran, Germany, UK, Canada, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, East Africa, South Africa, Kazakhstan etc.

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