Delivering High Quality Stainless Steel and Alloy Piping Products — Pipes, Tubes, Fittings, Flanges and more for Global Industries.
sales@savoypipinginc.com
Delivering High Quality Stainless Steel and Alloy Piping Products — Pipes, Tubes, Fittings, Flanges and more for Global Industries.
sales@savoypipinginc.com
Savoy Piping Inc. supplies ASME SA335 Grade P92 / ASTM A335 P92 seamless chrome moly pipe — 9Cr-2W-Mo-V-Nb ferritic alloy-steel pipe for high-temperature service.
On boiler and ASME-code packages, buyers often write SA335 rather than A335, and ask for IBR Form III-C where applicable, plus EN 10204 3.1 / 3.2 MTCs. That documentation detail matters as much as the P-grade on the enquiry.
Where SA335 P92 fits: supercritical / advanced steam systems needing creep-strength-enhanced tungsten-bearing 9Cr CSEF. Chemistry is about 8.5–9.5% chromium with reduced molybdenum, intentional tungsten (~1.5–2%), boron and microalloying (UNS K92460).
Related grades: SA335 P5, P9, P11, P22, P91, P92. ASTM twin: ASTM A335 P92.
ASME SA335 Grade P92 is the ASME companion to ASTM A335 P92 — seamless ferritic alloy-steel pipe for high-temperature service. Composition is about 8.5–9.5% chromium with reduced molybdenum, intentional tungsten (~1.5–2%), boron and microalloying (UNS K92460).
Pipe ordered to this grade must be suitable for bending, flanging (vanstoning), similar forming and fusion welding. Final selection depends on design metal temperature, pressure, corrosion environment and fabrication practice.
For Indian boiler work, SA335 wording with Form III-C is often mandatory even when the mill product is dual-certified A335/SA335.
P92 is CSEF tungsten-bearing 9Cr — not classic P9. For conventional CSEF modified 9Cr see SA335 P91. Conventional hot steam often remains on P22.
| SA335 P92 Alloy Steel Seamless Pipes Specification | ASTM A335 / ASME SA335 |
| SA335 P92 Alloy Steel Seamless Pipes Grades | ASTM A335 P5, ASTM A335 P9, ASTM A335 P11, ASTM A335 P22, ASTM A335 P91, ASTM A335 P92, ASME SA335 P5, ASME SA335 P9, ASME SA335 P11, ASME SA335 P22, ASME SA335 P91, ASME SA335 P92 |
| SA335 P92 Alloy Steel Seamless Pipes Type | Seamless - Hot Rolled / Cold Drawn |
| SA335 P92 Alloy Steel Seamless Pipes Outer Diameter Size | A335 - 3/8" NB to 30" NB (Nominal Bore Size) |
| SA335 P92 Alloy Steel Seamless Pipes Wall Thickness | Schedule 20 to Schedule XXS (Heavier On Request) Up to 250 mm Thickness |
| SA335 P92 Alloy Steel Seamless Pipes Length | 5 to 7 Meters, 09 to 13 Meters, Single Random Length, Double Random Length And Customize Size. |
| SA335 P92 Alloy Steel Seamless Pipes Ends | Plain Ends / Beveled Ends / Coupling |
| SA335 P92 Alloy Steel 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 |
| SA335 P92 Alloy Steel Seamless Pipes Coating | Epoxy Coating / Colour Paint Coating / 3LPE Coating. |
| SA335 P92 Alloy Steel Seamless Pipes Other Testing | Tensile Test, Transverse Tension Tests, Flattening Test, Metal Structure and Etching Tests, Photomicrographs, Hardness Tests, etc. |
| SA335 P92 Alloy Steel Seamless Pipes Dimension | All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM, ASME, API. |
| SA335 P92 Alloy Steel Seamless Pipes Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Galavanizing / Heat Treatment |
| SA335 P92 Alloy Steel Seamless Pipes Packaging | Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
| SA335 P92 Alloy Steel 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 / 4 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes |
| SA335 P92 Alloy Steel Seamless Pipes Material Test Certificate | Manufacturer Test Certificante As Per EN10204 3.1, 3.2 / Laboratory Test Certificante From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC |
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 P92. The most common use of grades P11, P22, and P92 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:
Heat-analysis composition limits for seamless pipe ordered as Grade P92 shall conform to ASTM A335 / ASME SA-335, Table 1 (UNS K92460). Values below are mass percent.
| Element | Composition, % |
|---|---|
| Carbon | 0.07–0.13 |
| Manganese | 0.30–0.60 |
| Phosphorus, max | 0.020 |
| Sulfur, max | 0.010 |
| Silicon, max | 0.50 |
| Chromium | 8.50–9.50 |
| Molybdenum | 0.30–0.60 |
| Vanadium | 0.15–0.25 |
| Nitrogen | 0.03–0.07 |
| Nickel, max | 0.40 |
| Aluminum, max | 0.02 |
| Columbium (Niobium) | 0.04–0.09 |
| Tungsten | 1.50–2.00 |
| Boron | 0.001–0.006 |
| Titanium, max | 0.01 |
| Zirconium, max | 0.01 |
Room-temperature tensile requirements for Grade P92 seamless pipe shall conform to ASTM A335 / ASME SA-335, Table 3 (longitudinal orientation).
| Seamless, Grade P92 (UNS K92460) | ||
| P-92 | Grades P91, P92, P122, and P911 shall have a hardness not exceeding 250 HB / 265 HV [25 HRC] (see ASTM A335 / SA-335). | |
| Tensile Strength, min., psi | ||
| ksi | 90 | |
| MPa | 620 | |
| Yield Strength, min., psi | ||
| ksi | 64 | |
| MPa | 440 |
| 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: | P92 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. |
| Grade P92 (CSEF) — ASTM A335 / ASME SA-335 Table 2 | |||
| Grade | Heat Treatment Type | Normalizing Temperature Range F [C] | Tempering Temperature Range F [C] |
| P92 | Normalize and Temper | 1900–1975 [1040–1080] | 1350–1470 [730–800] |
| 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) | ||
| Calculated Minimum Elongation Values | ||||
| Elongation in 2 in. or 50 mm, min % | ||||
| Wall Thickness | P5, P9, P11, P22 | P92 | ||
| 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 | |
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 | |||
(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 |
|
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| 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 P92 | |||||||||||||||||||||||||
| Pipe that has been weld repaired shall be marked “WR”. | |||||||||||||||||||||||||
Orders for material under this specification should include the following, as required, to describe the desired material adequately:
ASME SA335 P92 is used for high-temperature, high-pressure steam piping — especially main steam and hot reheat systems in supercritical power plants — where creep strength of tungsten-bearing 9Cr CSEF is required.
Incorrect welding or PWHT can leave soft or overly hard zones that hurt creep life or toughness. Projects usually require documented hardness surveys after heat treatment.
Both are 9Cr CSEF steels. P92 reduces molybdenum versus P91 and adds tungsten for further creep improvement in more demanding USC service. Confirm the approved material class before substitution.
Companion designations for the same CSEF grade family. ASME SA335 Grade P92 is commonly specified on ASME/IBR packages with matching documentation.
We Export ASME SA335 P92 Alloy Steel 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, Myanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rico, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherlands, 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 ASME SA335 P92 Alloy Steel Seamless Pipes, Savoy Piping Inc. is committed to provide each and every customer with the highest standard of customer service. We deal in SA335 P92 Alloy Steel Seamless Pipes in India and Overseas, offering a wide range of ASME SA335 P92 Alloy Steel Seamless Pipes