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ASTM A335/ASME SA335 Pipes/Tubes



ASTM A335 pipes & tubes

ASTM A335 pipes & tubes

WE are exporter and supplier of alloy steel pipes & tubes which are used in various engineering applications. Our alloy steel pipes and alloy steel tubes are ideal for High Temperature / Pressure application. Made in different sizes, these pipes are known for their sturdy construction and long lasting metal.

Alloy Steel contains substantial quantities of elements other than carbon such as nickel, chromium, silicon, manganese, tungsten, molybdenum, vanadium and limited amounts of other commonly accepted elements such as manganese, sulfur, silicon, and phosphorous. These pipes are also used for different purposes such as energy related applications like oil and gas drilling. Our range is available in standard as well as customized lengths, thickness, sizes and dimensions to meet the demands of client’s. Addition of such alloying elements is usually for the purpose to increase hardness, strength or chemical resistance.These are known for chemical resistance and durability with following series grades:



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

Alloy Steel Seamless Pipes (IBR APPROVED)

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:

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 - steel who characteristics are determined by the addition of other elements in addition to Carbon
  • Steel - an alloy of iron with small amounts of carbon; widely used in construction; mechanical properties can be varied over a wide range
  • Chromium steel, stainless, stainless steel - steel containing chromium that makes it resistant to corrosion
  • Chrome-nickel steel, Elinvar - Elinvar is a trademark for a kind of steel used for watch springs because its elasticity is constant over a wide range of temperatures.
  • Chrome-tungsten steel - a steel alloy made with chromium and tungsten
  • Austenitic manganese steel, manganese steel - a steel with a relatively large component (10-14%) of manganese; highly resistant to wear and shock.
  • Molybdenum steel - steel containing 10-15% molybdenum; properties are similar to tungsten steel
  • Nickel steel - an alloy steel containing nickel
  • Tool steel - alloy steel that is suitable for making tools; is hard and tough and can retain a cutting edge
  • Tungsten steel, wolfram steel - a very hard heat-resistant steel containing tungsten.
  • Vanadium steel - steel alloyed with vanadium for greater strength and high-temperature stability

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
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
0.02
Ni at 0.40 max
Sulfur, max
0.025
0.025
0.025
0.025
0.01
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.

Required Markings on Each Length

(On Tags attached to each Bundle in case of Bundled Pipe) Markings will adhere to prescribed specifications in A 999/A999M and be: Rolled, Stamped, or Stenciled (Mfrs. Option)

In addition, markings will include:
Length of pipe
Marking to indicate the test method(s)
Hydrostatic Nondestructive Marking
YES NO Test Pressure
NO YES NDE
NO NO NH
YES YES Test Pressure/NDE
Schedule Number
Heat Number or Manufacturer’s number by which heat can be identified
An Additional Symbol “S” if the pipe conforms to any Supplementary Requirements
S1 – Product Analysis
S2 – Transverse Tension Test
S3 – Flattening Test
S4 – Metal Structure and Etching Tests
S5 – Photomicrographs
S6 – Photomicrographs for Individual Pieces
S7 – Alternative Heat Treatment – Grade P91
Pipe that has been weld repaired shall be marked “WR”.

Alloys steel types:

Name Class Alloy Type
AISI 1330  Alloy steel  Manganese steel 
AISI 1335  Alloy steel  Manganese steel 
AISI 1340  Alloy steel  Manganese steel 
AISI 1345  Alloy steel  Manganese steel 
AISI 2330  Alloy steel  Nickel steel 
AISI 3140  Alloy steel  Nickel-chromium steel 
AISI 4012  Alloy steel  Molybdenum steel 
AISI 4023  Alloy steel  Molybdenum steel 
AISI 4024  Alloy steel  Molybdenum steel 
AISI 4027  Alloy steel  Molybdenum steel 
AISI 4028  Alloy steel  Molybdenum steel 
AISI 4032  Alloy steel  Molybdenum steel 
AISI 4037  Alloy steel  Molybdenum steel 
AISI 4042  Alloy steel  Molybdenum steel 
AISI 4047  Alloy steel  Molybdenum steel 
AISI 4118  Alloy steel  Chromium-molybdenum steel 
AISI 4130  Alloy steel  Chromium-molybdenum steel 
AISI 4135  Alloy steel  Chromium-molybdenum steel 
AISI 4137  Alloy steel  Chromium-molybdenum steel 
AISI 4140  Alloy steel  Chromium-molybdenum steel 
AISI 4142  Alloy steel  Chromium-molybdenum steel 
AISI 4145  Alloy steel  Chromium-molybdenum steel 
AISI 4147  Alloy steel  Chromium-molybdenum steel 
AISI 4150  Alloy steel  Chromium-molybdenum steel 
AISI 4161  Alloy steel  Chromium-molybdenum steel 
AISI 4320  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 4340  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 4419  Alloy steel  Molybdenum steel 
AISI 4422  Alloy steel  Molybdenum steel 
AISI 4427  Alloy steel  Molybdenum steel 
AISI 4615  Alloy steel  Nickel-molybdenum steel 
AISI 4617  Alloy steel  Nickel-molybdenum steel 
AISI 4620  Alloy steel  Nickel-molybdenum steel 
AISI 4621  Alloy steel  Nickel-molybdenum steel 
AISI 4626  Alloy steel  Nickel-molybdenum steel 
AISI 4718  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 4720  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 4815  Alloy steel  Nickel-molybdenum steel 
AISI 4817  Alloy steel  Nickel-molybdenum steel 
AISI 4820  Alloy steel  Nickel-molybdenum steel 
AISI 50100  Alloy steel  Chromium steel 
AISI 5015  Alloy steel  Chromium steel 
AISI 5046  Alloy steel  Chromium steel 
AISI 5060  Alloy steel  Chromium steel 
AISI 50B40  Alloy steel  Boron steel 
AISI 50B44  Alloy steel  Boron steel 
AISI 50B46  Alloy steel  Boron steel 
AISI 50B50  Alloy steel  Boron steel 
AISI 50B60  Alloy steel  Boron steel 
AISI 51100  Alloy steel  Chromium steel 
AISI 5115  Alloy steel  Chromium steel 
AISI 5117  Alloy steel  Chromium steel 
AISI 5120  Alloy steel  Chromium steel 
AISI 5130  Alloy steel  Chromium steel 
AISI 5132  Alloy steel  Chromium steel 
AISI 5135  Alloy steel  Chromium steel 
AISI 5140  Alloy steel  Chromium steel 
AISI 5145  Alloy steel  Chromium steel 
AISI 5147  Alloy steel  Chromium steel 
AISI 5150  Alloy steel  Chromium steel 
AISI 5155  Alloy steel  Chromium steel 
AISI 5160  Alloy steel  Chromium steel 
AISI 51B60  Alloy steel  Boron steel 
AISI 52100  Alloy steel  Chromium steel 
AISI 6118  Alloy steel  Chromium-vanadium steel 
AISI 6150  Alloy steel  Chromium-vanadium steel 
AISI 8115  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 81B45  Alloy steel  Boron steel 
AISI 8615  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 8617  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 8620  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 8622  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 8625  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 8627  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 8630  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 8637  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 8640  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 8642  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 8645  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 8650  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 8655  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 8660  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 86B45  Alloy steel  Boron steel 
AISI 8720  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 8740  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 8822  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 9254  Alloy steel  Silicon-manganese steel 
AISI 9255  Alloy steel  Silicon-manganese steel 
AISI 9260  Alloy steel  Silicon-manganese steel 
AISI 9310  Alloy steel  Nickel-chromium-molybdenum steel 
AISI 94B15  Alloy steel  Boron steel 
AISI 94B17  Alloy steel  Boron steel 
AISI 94B30  Alloy steel  Boron steel 
AISI E4340  Alloy steel  Nickel-chromium-molybdenum steel 

Principal low-alloy steels:

Principal low-alloy steels
SAE designation Composition
13xx Mn 1.75%
40xx Mo 0.20% or 0.25% or 0.25% Mo & 0.042% S
41xx Cr 0.50% or 0.80% or 0.95%, Mo 0.12% or 0.20% or 0.25% or 0.30%
43xx Ni 1.82%, Cr 0.50% to 0.80%, Mo 0.25%
44xx Mo 0.40% or 0.52%
46xx Ni 0.85% or 1.82%, Mo 0.20% or 0.25%
47xx Ni 1.05%, Cr 0.45%, Mo 0.20% or 0.35%
48xx Ni 3.50%, Mo 0.25%
50xx Cr 0.27% or 0.40% or 0.50% or 0.65%
50xxx Cr 0.50%, C 1.00% min
50Bxx Cr 0.28% or 0.50%, and added boron
51xx Cr 0.80% or 0.87% or 0.92% or 1.00% or 1.05%
51xxx Cr 1.02%, C 1.00% min
51Bxx Cr 0.80%, and added boron
52xxx Cr 1.45%, C 1.00% min
61xx Cr 0.60% or 0.80% or 0.95%, V 0.10% or 0.15% min
86xx Ni 0.55%, Cr 0.50%, Mo 0.20%
87xx Ni 0.55%, Cr 0.50%, Mo 0.25%
88xx Ni 0.55%, Cr 0.50%, Mo 0.35%
92xx Si 1.40% or 2.00%, Mn 0.65% or 0.82% or 0.85%, Cr 0.00% or 0.65%
94Bxx Ni 0.45%, Cr 0.40%, Mo 0.12%, and added boron
ES-1 Ni 5%, Cr 2%, Si 1.25%, W 1%, Mn 0.85%, Mo 0.55%, Cu 0.5%, Cr 0.40%, C 0.2%, V 0.1%

Designations

France
: AFNOR 25 CD 4 (S)
Germany
: DIN 1.7218
Italy
: UNI 25 CrMo 4 , UNI 25 CrMo 4 KB
Japan
: JIS SCCrM 1 , JIS SCM 2
Sweden : SS 2225
United Kingdom
: B.S. CDS 110
United States
: AMS 6350 , AMS 6350D , AMS 6351AMS 6360 , AMS 6360F , AMS 6361 , AMS 6362 , AAMS 6371 , AMS 6371D , AMS 6373 , AMS 6373A ,

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