Manufacturing carbon steel Tubes

Alloy Steel Pipes and Tubes

Steel Tubes offer Alloy Steel Pipes and Tubes, ASTM A335 Alloy Steel Pipes, ASTM A335 Alloy Tubing, AISI EN Alloy Steel Tubes

Steel Tubes India is manufacturer, exporter & suppliers of Alloy Steel Pipes and Tubes, ASTM A335 Alloy Steel Pipes, ASTM A335 Alloy Tubing, AISI EN Alloy Steel Tubes in India

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Alloy Steel Pipes and Tubes at Steel Tubes India FactoryWhatever the specification, grade or service, we offer the best solutions for you - making the difference.

At Steel Tubes India, we offer all our customers:

  • Production flexibility that meets their schedules
  • Quality steel tube whatever their requirement
  • A trustworthy partnership

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.

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:

Contents



Alloy Steel Pipes and Tubes

Alloy Steel Pipes and Tubes ready to export

Manufacturer | Exporter | Suppliers | Stockist  

ASTM A335 PIPES | ASTM A335 GR P5 PIPES | ASTM A335 GR P9 PIPES | ASTM A335 GR P11 PIPES | ASTM A335 GR P22 PIPES | ASTM A335 GR P91 PIPES
Size Range: 1/8" - 26"
Schedules: 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH

Alloy steel pipes are available with specifications like: ASTM A335 GR. P1/ P5/ P9/ P11/ P22/ P91 etc.

Alloy Steel Pipes and Tubes Application

Alloy Steel Pipes and Tubes Application

Alloy steel pipe Application:

Petroleum, smelting, foodstuff, power, papermaking, chemical, medical equipment, aviation, boiler heat-exchanger and other field.

For low and medium pressure boiler, high pressure boiler, ship, liquid service, petroleum cracking, chemical fertilizer equipment, drawing-oil-equipment and structure purposes petrochemical industry, natural industry, environmental protection, pharmaceutical chemical, food machinery, water supply, architecture boiler heat exchange, oil pipline, pipe material collar, oil natural gas, industrial gas, water, oil transportation.

Alloy Steel Pipes and Tubes

Alloy Steel Pipes and Tubes ready to export and shipping

Alloy steel pipe Material

GB/T8162,GB/T8163, GB/T3094, ASTM A 500, ASTM A 501, ASTM A 519, JIS G3441, JIS G3444, ASTM A 53, DIN1629 and otherwise.

 

Alloy Steel Pipes and Tubes packaging & shipping policy

Alloy Steel Pipes and Tubes is sleeved into plastic bag individually, ten 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.

Alloy Steel Pipes and Tubes packed
Alloy Steel Pipes and Tubes packed
Alloy Steel Pipes and Tubes packed
Alloy Steel Pipes and Tubes packed

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

  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.

Alloy Steel Pipes and Tubes Price Chart

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For more information, please feel free to contact:

M/S STEEL TUBES INDIA
Ashtavinayak Building, Office No.303, 3rd Floor,
Sadanand Wadi, V.P. Road, Girgaum, Mumbai-400 004, Maharashtra, India.
Tel: +91 22 61432000 (30 Lines), 23895908, 23822821, 66393996
Email: stindia@stindia.com, stindia@stindia.co.in
Fax: +91 22 23895906
Skype Id- stindia.jain

Steel Tubes India is a well known worldwide exporter of award-winning Alloy Steel Pipes and Tubes, Steel Tubes India is commited to provide each and every customer with the highest standard of customer service. We deals in Alloy Steel Pipes and Tubes in India & Overseas, offering a wide range of Alloy Steel Pipes and Tubes.


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