Alloy Steel Pipe ASTM A335 GR P5 | P9 | P11 | P22 | P91 | P91 with IBR Certified

A335 Alloy Steel Seamless Pipes & Tubes | ASTM A335 | GR P5 | P9 | P11 | P22 | P91

Importer, Stockholder, Suppliers and Exporter of ASTM A335 Alloy Steel Seamless Pipes & Tubes

ASTM A335 Alloy Steel Seamless Pipes

Carbon steel pipes manufacturer & supplierThis 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 weldingASTM A335 GR P5 | GR P9 | GR P11 | GR P22 | GR P91.

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Alloy Steel Seamless Pipes (IBR APPROVED)

Alloy Steel Seamless Pipes (IBR) offered by us is made of alloy steel and feature exceptional performance properties. These are developed for energy-related applications involving oil & gas drilling and therefore are subjected to stresses in machine parts. Further, Alloy Steel Tubes are also used in domestic, professional or industrial areas.

Alloy Steel Seamless Pipes (ASME SA335 Grade P5)

Alloy Steel Seamless Pipes (ASME SA335 Grade P5) offered by us are made available in ASME SA335 as well as P1, P5, P9, P11, P12, P91 grades. Our expertise lies in offering these in different sizes & schedules, with IBR & latest edition NACE MR 0175 reports.

Alloy Steel Pipes (ASTM A335 P11)

Alloy Steel Pipes (ASTM A335 P11) offered by us are made as per IBR standards and are used mainly for boiler operations. We source these seamless pipes in varied size range. Further, we can also get these customized as per boiler piping requirements. For ensuring in them optimum quality standards, we source these from quality manufacturers. We also offer clients of having their own mark on them.

Alloy Steel Pipes (ASTM A335 P12)

Alloy Steel Pipes (ASTM A335 P12) offered by us are available with ASTM A335 P12 standard and finds application in industries like Petrochemicals, Refineries, Fertilizers, Pharmaceuticals and others. We can source these seamless pipes in size range of up to 26 inches.

Alloy Seamless Pipes (ASTM A335 Grade P91 NACE

Alloy Seamless Pipes (ASTM A335 Grade P91 NACE) offered by us are made available in ASTM A335 Grades. Made as per IBR standards, these are mainly used in boiler operations. Further, our expertise lies in offering these pipes in various size range as well as in customized parameters as per boiler piping requirements. Sourced from quality conscious manufacturers, we also offer our clients the option of adding their own mark on them.

Alloy Steel Tubes (ASME SA213 Grade T11)

Alloy Steel Tubes (ASME SA213 Grade T11) manufactured and supplied by us are of ASME SA213 Grade. Our expertise lies in offering these in various sizes as well as other specifications as per the required demands. These Alloy Steel Tubes find usage mainly in different industrial applications.

ASME Alloy Steel Seamless Tubes / Pipes (SA335 Grade P9)

ASME Alloy Steel Seamless Tubes / Pipes (SA335 Grade P9) manufactured, supplied and exported by us are used for various industrial applications. Our specialization in offering precision engineered alloy steels allow us to deliver these for various engineering applications in various grades like A-387 GR. P1, P5, P9, P11, P12, P22, P91, ASTM A-335 and others.

The other specifications include:

Size Range: 1/8″ – 26″
Schedules: 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH

Heat Treatment Requirements

  P5, P9, P11, and P22    
Grade Heat Treatment Type Normalizing Temperature Range F [C] Subcritical Annealing 
or Tempering 
Temperature Range F 

[C]
P5 (b,c) Full or Isothermal Anneal  
  Normalize and Temper ***** 1250 [675]
  Subcritical Anneal (P5c only) ***** 1325 – 1375 [715 – 745]
P9 Full or Isothermal Anneal  
  Normalize and Temper ***** 1250 [675]
P11 Full or Isothermal Anneal  
  Normalize and Temper ***** 1200 [650]
P22 Full or Isothermal Anneal  
  Normalize and Temper ***** 1250 [675]
P91 Normalize and Temper 1900-1975 [1040 – 1080] 1350-1470 [730 – 800]
  Quench and Temper 1900-1975 [1040 – 1080] 1350-1470 [730 – 800]

Chemical Requirements

Grade P-5 P-9 P-11 P-22 P-91 P-91 shall also include the following:
Element UNS Designation K41545 S50400 K11597 K21590 K91560
Carbon 0.15 max 0.15 max 0.05 – 0.15 0.05 – 0.15 0.08 – 0.12 V at 0.18 – 0.25
Manganese 0.30 – 0.60 0.30 – 0.60 0.30 – 0.60 0.30 – 0.60 0.30 – 0.60 N at 0.030 – 0.070
Phosphorous, max 0.025 0.025 0.025 0.025 0.020 Ni at 0.40 max
Sulfur, max 0.025 0.025 0.025 0.025 0.010 Al at 0.02 max
Silicon 0.50 max 0.25 – 1.00 0.50 – 1.00 0.50 max 0.20 -0.50 Cb at 0.06 – 0.10
Chromium 4.00 – 6.00 8.00 – 10.00 1.00 – 1.50 1.90 – 2.60 8.00 – 9.50 Ti at 0.01 max
Molybdenum 0.45 -0.65 0.90 – 1.10 0.44 – 0.65 0.87 – 1.13 0.85 – 1.05 Zr at 0.01 max

Tensile Requirements

  Seamless  
P-5 P-9 P-11 P-22 P-91 P91 shall not have a hardness not exceeding 250 HB/265 HV [25HRC].
Tensile Strength, min., psi
ksi 60 60 60 60 85
MPa 415 415 415 415 585  
Yield Strength, min., psi  
ksi 30 30 30 30 60  
MPa 205 205 205 205 415  


Permissible Variation in Wall Thickness

NPS [DN] Designator Tolerance, % from Specified
Over Under
1/8 to 2 1/2 [6 to 65] incl., all t/D ratios 20.0% 12.5%
Above 2 1/2  [65], t/D < or = 5% 22.5% 12.5%
Above 2 1/2  [65], t/D > 5% 15.0% 12.5%
(t = Specified Wall Thickness; D = Specified Outside Diameter)


Elongation Requirements

Calculated Minimum Elongation Values
Elongation in 2 in. or 50 mm, min %
Wall Thickness P5, P9, P11, P22 P91
in. mm Longitudinal Transverse Longitudinal
5/16 (0.312) 8 30 20 20
9/32 (0.281) 7.2 28 19 19
1/4 (0.250) 6.4 27 18 18
7/32 (0.219) 5.6 26 17
3/16 (0.188) 4.8 24 16
5/32 (0.156) 4 22 15
7/8 (0.125) 3.2 21 14
3/32 (0.094) 2.4 20 13
1/18 (0.062) 1.6 18   12

Permissible Variations in Outside Diameter
Outside Diameter at any point shall not vary from standard specified more than: 

NPS [DN] Designator Over   Under  
  in. mm in. mm
1/8 to 1 1/2 [6 to 40], incl. 1/64 (0.015) 0.40 1/64 (0.015) 0.40
Over 1 1/2 to 4 [40 to 100], incl. 1/32 (0.031) 0.79 1/32 (0.031) 0.79
Over 4 to 8 [100 to 200], incl. 1/16 (0.062) 1.59 1/32 (0.031) 0.79
Over 8 to 12 [200 to 300], incl. 3/32 (0.093) 2.38 1/32 (0.031) 0.79
Over 12 [300] +/- 1% of the specified outside diameter

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: P91 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.
The inside diameter of the bend shall be 1 inch [25 mm].
Hydrostatic Test Each length of pipe shall be Hydro tested, at option of manufacture nondestructive electric testing can be used.

A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube PackingA335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube is sleeved into plastic bag individually, pieces wrapped with water-proof material, bundled with nylon rope. Clear labels are tagged on the outside of the package for easy identification of the quantity and product I.D. Great care is taken during operation and transportation.

A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe packing will be according to international standard in bundles strapped by strips then into containers to avoid any damage.

Delivery: Within 10-25 days or asap if we have enough stock

Types of Packaging:

  • - Bundles (hexagonal)
  • - Wooden Boxes
  • - Crates (steel/wooden)
  • - Special crates for U-Bend tubes with each radius separated
  • - Packaging for A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe as per customer’s requirements

Special Features:

  • - Each bundle covered with plastic for protection against extreme weather.
  • - End of A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe protected by plastic caps.
  • - Bundles strapped with plastic strips.
  • - Each radius of U-Bend tube separated by a separator.
  • - Packaging list (laminated) placed with box/crate.

ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube Sizes Available in Stock with Price

  • 1/2″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 3/4″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 1″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 1-1/4″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 1-1/2″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 2″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 2-1/2″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 3″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 3-1/2″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 4″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 5″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 6″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 8″ NB in ThicknessSchedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 10″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 12″ NB in ThicknessSchedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 14″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 16″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 18″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 20″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 22″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 24″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 26″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 28″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 30″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 32″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 34″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube
  • 36″ NB in Thickness Schedule 20, Schedule 30, Schedule STD, Schedule 40, Schedule 60, Schedule 80, Schedule 100, Schedule 120, Schedule 160, Schedule XXS in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tube

We export ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe to Iran, Iraq, Oman, Qatar, Albania, Muscat, Bahrain, Turkey, Egypt, Maldives, Italy, UAE, Bahrain, Indonesia, Australia, Kuwait, Saudi Arabia, South Africa, Germany, UK, Denmark, Canada, USA, Peru, Brazil, Nizeria, Mexico, Venezuela (Latin America), South America, Russia, kazakhstan etc.

Also Export ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe to : Saudi Arabia, Qatar, Oman, Iran, Iraq, Bahrain, Kuwait, United Arab Emirates, Dubai, Turkey, Egypt, Yemen, Israel, Jordan United Kingdom, United States of America, Mexico, Brazil, Chile, Argentina, Spain, Germany, Netherland, Italy, Europe, Albania, Ukraine, Russia, Japan, China, Sri Lanka, Pakistan, Bangladesh, Nepal, Bhutan, Maldives, Singapore, Malaysia, Thailand, South Korea, Vietnam, Indonesia, Australia, New Zealand, Alaska, Tehran, Riyadh, Jubail, Dammam, Jeddah, Houston, Doha, Musqat, Karachi, Colombo, Jakarta, Bangkok, Basra, Abadan, Bandar Abbas, Sharjah, Morocco, Istanbul, Kobhar, Mecca, Madina, Al Madina, Makkah, Mesaieed, Dukhan, Ras Laffan, Sohar, Manama, Aqaba, Port of Aden, Shuwaikh, Yanbu, Jubail

Steber Steel is a well known worldwide exporter of ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless PipeSteber Steel is committed to provide each and every customer with the highest standard of customer service. We deals in ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tubes in India & Overseas, offering a wide range of ASTM A335 Grade P5, P9, P11, P22, P91 Alloy Steel Seamless Pipe and Tubes.

Contact Steber Steel today for a Alloy Steel Pipe ASTM A335 GR P5 | P9 | P11 | P22 | P91 | P91 Carbon Steel Seamless Pipe competitive quotation…
call : (+91) 22-23824442
e-mail: sales@stebersteel.net

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