API 5L LINE PIPES SUPPLIER IN GRADE B, X42, X46, X52, X56, X60, X70 PSL1 AND PSL2, A671, A672, A333, A335 PIPES
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Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service

Savoy Piping Inc is World Renowned Supplier of A335 Chrome Moly Seamless Pipes and Tubes. Among the Largest Stockist & Stockholder of ASTM A335 Chrome Moly Pipes in India. Leading Exporter of A335 Chrome Moly Pipes in Integrated Partnership with Top ASTM A335 Chrome Moly Seamless Pipes Manufacturers. Genuine Dealer of A335 Chrome Moly Seamless Pipes in USA, European and Japanese Origins. We are the Prominent Trusted Source for A335 Chrome Moly Seamless Pipes to be used in World Class Projects. We are the Top EPC Contractor's First Choice for A335 Chrome Moly Pipes with Large Ready Stock Inventory above 20000 Metric Tons.


( ASTM A335 GRADE P5, P9, P11, P22, P91 / ASME SA335 GRADE P5, P9, P11, P22, P91 )

Savoy Piping Inc., we carry a full inventory of ASTM A335 Chrome Moly Pipe and Supply ASTM A335 Chrome Moly Seamless Pipe products in a variety of sizes to meet the High temperature service requirements for applications the Power Plants, Petro Chmical Plants and Refineries industries. ASTM A335 Chrome Moly Seamless Pipes steel pipe can be structural in nature or used in fluid and oil transmission.

We Supply A335 Chrome Moly Seamless Pipes in ASTM A335 Grade P5, ASTM A335 Grade P9, ASTM A335 Grade P11, ASTM A335 Grade P22, ASTM A335 Grade P91, ASTM A213 Grade T5, ASTM A213 Grade T9, ASTM A213 Grade T11, ASTM A213 Grade T22, ASTM A213 Grade T91.The grade indicates the testing methods required for a given application. It is critical that structural grades of Carbon Steel Pipe not be used for Pressure or Fluid applications.

Savoy Piping Inc. specializes in ASTM A335 Chrome Moly Pipe.With years of Experience in Manufacturing ASME SA335 Chrome Moly Seamless Pipes. we offer high quality, lower cost but the best service. As a result to that our ASTM A335 Chrome Moly Seamless Pipes  export account today is in various countries like Iran, Iraq, Kuwait, Saudi Arabia, Oman, UAE, Singapore, Malaysia, Indonesia, South korea, Chile, Peru, Venezuela, Australia, Nigeria, Angola, Senegal, Mozambique, Algeria, Libya, Azerbaijan, Netherlands, Brazil, Norway, United Kingdom, Mexico, Canada etc.

ASTM A335 P5, ASTM A335 P9, ASTM A335 P11, ASTM A335 P22, ASTM A335 P91, ASME SA335 P5, ASME SA335 P9, ASME SA335 P11, ASME SA335 P22, ASME SA335 P91, ASTM A213 T5, ASTM A213 T9, ASTM A213 T11, ASTM A213 T22, ASTM A213 T91,

Alloy steel is steel that is alloyed with a variety of elements in total amounts between 1.0% and 50% by weight to improve its mechanical properties. Alloy steels are broken down into two groups: low-alloy steels and high-alloy steels. The difference between the two is somewhat arbitrary: Smith and Hashemi define the difference at 4.0%, while Degarmo, et al., define it at 8.0%.[1][2] Most commonly, the phrase "alloy steel" refers to low-alloy steels.

Strictly speaking, every steel is an alloy, but not all steels are called "alloy steels". The simplest steels are iron (Fe) alloyed with carbon (C) (about 0.1% to 1%, depending on type). However, the term "alloy steel" is the standard term referring to steels with other alloying elements added deliberately in addition to the carbon. Common alloyants include manganese (the most common one), nickel, chromium, molybdenum, vanadium, silicon, and boron. Less common alloyants include aluminum, cobalt, copper, cerium, niobium, titanium, tungsten, tin, zinc, lead and zirconium.

The following is a range of improved properties in alloy steels (as compared to carbon steels): strength, hardness, toughness, wear resistance, corrosion resistance, hardenability, and hot hardness. To achieve some of these improved properties the metal may require heat treating.

ASTM A335 CHROME MOLY seamless PIPEs range

A335 Chrome Moly Seamless Pipes Specification
ASTM A335 / ASME SA335
A335 Chrome MolySeamless Pipes Grades
ASTM A335 P5, ASTM A335 P9, ASTM A335 P11, ASTM A335 P22, ASTM A335 P91, ASME SA335 P5, ASME SA335 P9, ASME SA335 P11, ASME SA335 P22, ASME SA335 P91
A335 Chrome Moly Seamless Pipes Type
Seamless - Hot Rolled / Cold Drawn
A335 Chrome Moly Seamless Pipes Outer Diameter Size
A335 - 3/8" NB To 30" NB (Nominal Bore Size)
A335 Chrome Moly Seamless Pipes Wall Thickness
Schedule 20 To Schedule XXS (Heavier On Request) Up to 250 mm Thickness
A335 Chrome Moly Seamless Pipes Length
5 To 7 Meters, 09 To 13 Meters, Single Random Length, Double Random Length And Customize Size.
A335 Chrome Moly Seamless Pipes Ends
Plain Ends / Beveled Ends / Coupling
A335 Chrome Moly Seamless Pipes Delivery Conditions
As Rolled, Cold Drawn, Normalizing Rolled, Thermomechanical Rolled / Formed, Normalizing Formed, Normalized and Tempered / Quenched and Tempered - BR / N / Q /T
A335 Alloy Steel Seamless Pipes Coating
Epoxy Coating / Colour Paint Coating / 3LPE Coating.
A335 Alloy Steel Seamless Pipes Other Testing
Tensile Test, Transverse Tension Tests, Flattening Test, Metal Structure and Etching Tests, Photomicrographs, Hardness Tests, etc.
A335 Chrome Moly Seamless Pipes Dimension
All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM, ASME, API.
A335 Chrome Moly Seamless Pipes Value Added Services
Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Galavanizing / Heat Treatment
A335 Chrome Moly Seamless Pipes Packaging
Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
A335 Chrome Moly Seamless Pipes Shipment & Transportation
By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes
A335 Chrome Moly Seamless Pipes Material Test Certificate
Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC

astm a335 CHROME MOLY seamless pipes

Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service

This specification2 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. Selection will depend upon design, service conditions, Mechanical Properties, and high-temperature characteristics.

ASTM A335 Pipe (ASME S/A335, Chorme-Moly) is a seamless ferritic Alloy-Steel Pipe for high temperature service. Pipe ordered to this specification shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding.   Sometimes referred to as “P Grade”, Chrome Moly Pipe is popular in P-Grades P5, P9, P11, P22, and P91.   The most common use of grades P11, P22, and P91 is in the power industry and petro-chemical plants,   Grades P5 and P9 are commonly used   in refineries.  

A335 is often called chrome moly pipe because of the chemical makeup of Molybdenum (Mo) and Chromium (Cr). Molybdenum increases the strength of steel as well as the elastic limit, resistance to wear, impact qualities, and hardenability.   Moly increases the resistance to softening, restrains grain growth and makes chromium steel less susceptible to embrittlement.   Moly is the most effective single additive that increases high temperature creep strength.   It also enhances the corrosion resistance of steel, and inhibits pitting.   Chromium (or chrome) is the essential constituent of stainless steel.   Any steel with 12% or more Chrome is considered stainless.   Chrome is virtually irreplaceable in resisting oxidation at elevated temperatures. Chrome raises the tensile, yield, and hardness at room temperatures.   The composition chrome moly alloy steel pipe make it ideal for use in power plants, refineries, petro chemical plants, and oil field services where fluids and gases are transported at extremely high temperatures and pressures.   
Savoy Piping Inc. stocks a full range of the following A335 pipe grades:  

astm a335 CHROME MOLY seamless pipes chemical compositions

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

astm a335 CHROME MOLY seamless pipes tensile test



   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

astm a335 CHROME MOLY pipes other mechanical test

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.

astm a335 CHROME MOLY seamless pipes heat treatment

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]

astm a335 CHROME MOLY seamless pipes 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)

astm a335 CHROME MOLY pipes elongation requirement

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

astm a335 CHROME MOLY pipes 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

astm a335 CHROME MOLY pipes 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
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”.

Reference Documents for a335 CHROME MOLY ALLOY seamless pipes

a335 CHROME MOLY pipes Ordering Information

Orders for material under this specification should include the following, as required, to describe the desired material adequately:

Quantity Feet, meters, or number of lengths
Name of material Seamless Alloy Steel Pipe
Grade P5, P9, P11, P22, P91
Manufacturer Hot-finished or cold-drawn
Size using one of the following:
NPS and Schedule Number
Outside Diameter and Nominal Wall Thickness
Outside Diameter and Minimum Wall Thickness
Inside Diameter and Nominal Wall Thickness
Inside Diameter and Minimum Wall Thickness
Length Specific or Random
End Finish

A335 CHROME MOLY Pipe Ready Stock

Available Size of ASTM A335 Grade P5, P9, P11, P22, P91 CHROME MOLY PIPES IN Ready Stock -


We Export ASTM A335 Chrome Moly Pipes to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen , Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States Of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East.etc

Savoy Piping Inc. is a well known worldwide Exporter of ASTM A335 Chrome Moly Seamless Pipes, Savoy Piping Inc. is committed to provide each and every customer with the highest standard of customer service. We deals in A335 Chrome Moly Seamless Pipes in India and Overseas, offering a wide range of ASTM A335 Chrome Moly Seamless Pipes



Savoy Piping Inc.
Address : Rajgiri Apartment, A Wing, 3rd Floor, 302, 13th Khetwadi Back Road, Khemraj Krishnadas Marg, Mumbai- 400004
Maharashtra. India.
Tel : +91-022-2387 1062
Website :
Email : sales@savoypipinginc.com

We Supply Pipes and Tubes to Worlwide Network Countries:


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If you’re looking for a Trusted & Most Reliable Supplier of ASTM A335 Chrome Moly Pipe then Call us on +91 022-2387 1062
or Email us: sales@savoypipinginc.com for a Competitive Quotation & Best Discounted Offers

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