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Ganpat Metal manufactures ASTM A335 P91 Pipes to ASTM A335 / ASME SA335 requirements for high-temperature piping applications. P91 is a seamless ferritic alloy steel grade identified by UNS K91560 and the 9Cr-1Mo-V-Nb designation.
The supply range is configured around project requirements for schedule, length, end finish, heat treatment, testing and inspection documentation. P91 pipes are supplied in the normalized and tempered condition specified for the grade.
ASTM A335 P91 pipes are selected according to the piping standard, size, schedule, wall thickness and material specification required for the project.
| Specification | ASTM A335 P91 |
|---|---|
| Standard | ASTM A335 / ASME SA335 |
| Grade | P91 |
| UNS | K91560 |
| Product Type | Seamless Alloy Steel Pipe |
| Material | Ferritic Alloy Steel |
| Common Designation | 9Cr-1Mo-V-Nb |
| Dimensions | ASME B36.10 and applicable project specifications |
| Schedule | SCH 40, SCH 80, SCH 160, STD, XS, XXS and other schedules |
| Length | Single Random, Double Random and Cut Length |
| End Finish | Plain End, Beveled End and Threaded End |
| Heat Treatment | Normalized and Tempered |
| Testing | Hydrostatic and applicable non-destructive testing |
| Inspection Documents | MTC, EN 10204 3.1, chemical and mechanical test reports |
The chemical composition of ASTM A335 P91 alloy steel pipe is controlled according to the ASTM A335 specification.
| Element | Composition |
|---|---|
| Carbon (C) | 0.08–0.12% |
| Chromium (Cr) | 8.00–9.50% |
| Manganese (Mn) | 0.30–0.60% |
| Molybdenum (Mo) | 0.85–1.05% |
| Phosphorus (P) | 0.020% max |
| Sulfur (S) | 0.010% max |
| Silicon (Si) | 0.20–0.50% |
The specified mechanical requirements for ASTM A335 P91 include the following minimum values:
| Property | Minimum Requirement |
|---|---|
| Tensile Strength | 585 MPa |
| Yield Strength | 415 MPa |
| Elongation | 20% |
Reference dimensional and schedule information for ASTM A335 P91 pipe:
| Parameter | Specification |
|---|---|
| Dimensional Standard | ASME B36.10 |
| Schedule | SCH 40 |
| Schedule | SCH 80 |
| Schedule | SCH 160 |
| Schedule | STD |
| Schedule | XS |
| Schedule | XXS |
| Other Schedules | Project Specification |
P91 pipe can be specified by the required supply length and end preparation. These details are important when the material is being purchased directly against a fabrication or piping requirement.
| Parameter | Options |
|---|---|
| Length | Single Random |
| Length | Double Random |
| Length | Cut Length |
| End Finish | Plain End |
| End Finish | Beveled End |
| End Finish | Threaded End |
For quotation accuracy, provide the size, schedule, length, end finish, quantity and any inspection / documentation requirements. These details determine the applicable manufacturing and certification scope.
Select ASTM A335 P91 Pipe parameters and click the "Calculate Weight" button to reveal approximate weight.
P91 pipes in this range are supplied in the normalized and tempered condition. The heat-treatment condition should be considered together with the chemical and mechanical test results when reviewing the material certificate.
The supplied technical specification does not provide individual normalizing and tempering temperature values, so no additional temperatures are stated here.
| Standard / Reference | P91 Designation |
|---|---|
| ASTM | A335 P91 |
| ASME | SA335 P91 |
| Tube Grade | T91 |
| UNS | K91560 |
| Equivalent Reference | K90901 |
| EN | X10CrMoVNb9-1 |
| Material Number | 1.4903 |
The P91 material family is also referenced with EN 10216-2, ASTM A213, ASME SA213, GOST 550-75 and NBR 5603.
For buyers sourcing several grades under one alloy steel pipe range, Ganpat Metal also supplies Alloy Steel Pipes covering ASTM A335 P1, P2, P5, P9, P11, P12, P22, P91 and P92.
ASTM A335 P91 Seamless Pipe is the primary product form specified for this grade. It combines the P91 ferritic alloy steel specification with seamless pipe construction for projects requiring this material designation.
The enquiry can be defined by the required schedule, length, end finish, heat-treatment condition and inspection documentation rather than simply specifying P91 by grade alone.
Ganpat Metal supplies P91 primarily as seamless pipe for high-temperature service, with related configurations as required by the project:
P91 procurement can include hydrostatic testing and applicable non-destructive testing, along with chemical and mechanical verification.
The inspection scope can be aligned with the project specification and documented through the relevant test reports and certificates.
| Inspection / Document | Requirement |
|---|---|
| Hydrostatic Testing | Included in specified testing scope |
| Non-Destructive Testing | Applicable NDT |
| Chemical Testing | Chemical test report |
| Mechanical Testing | Mechanical test report |
| Material Certificate | MTC |
| Certification | EN 10204 3.1 |
| Project Inspection | Project-specific requirements |
For P91 buyers, documentation should identify the material supplied and provide the test results associated with the order. Ganpat Metal can supply the specified MTC and EN 10204 3.1 documentation along with chemical and mechanical test reports.
Where the project includes additional inspection requirements, these can be defined with the enquiry so that the documentation scope is clear before order confirmation.
ASTM A335 P91 is used for piping systems requiring ferritic alloy steel for high-temperature service.
The applicable engineering specification remains the basis for selecting P91 for a particular service.
Ganpat Metal manufactures and supplies ASTM A335 P91 Pipes in India against project-specific dimensional, testing and documentation requirements.
The supply can be configured around SCH 40, SCH 80, SCH 160, STD, XS and XXS requirements, together with Single Random, Double Random or Cut Length and Plain, Beveled or Threaded ends.
For a quotation, buyers can provide the P91 size, schedule, quantity, length, end finish and required inspection documents.
Ganpat Metal supplies ASTM A335 P91 Pipes for export requirements where the material grade, dimensions, testing and documentation are defined by the project or purchase order.
Export enquiries can include the required schedule, length, end finish, normalized and tempered condition, MTC, EN 10204 3.1 certification and applicable testing.
India
Brazil
New Zealand
Australia
Bangladesh
Malaysia
UAE
Saudi Arabia
Oman
Egypt
Spain
Russia
Kazakhstan
Ganpat Metal combines grade-specific supply with the documentation and certification requirements expected in industrial procurement.
The ISO certification and MSME registration support Ganpat Metal's formal business and quality documentation framework for industrial procurement.
Send your P91 pipe requirement with the key dimensional and inspection details below.
| Requirement | Details |
|---|---|
| Grade | ASTM A335 P91 / ASME SA335 P91 |
| UNS | K91560 |
| Size | Project-specified size |
| Schedule | SCH 40, SCH 80, SCH 160, STD, XS, XXS or other schedule |
| Length | Single Random, Double Random or Cut Length |
| End Finish | Plain, Beveled or Threaded |
| Heat Treatment | Normalized and Tempered |
| Testing | Hydrostatic and applicable NDT |
| Documentation | MTC / EN 10204 3.1 |
| Quantity | Required quantity |
| Inspection | Project-specific requirements |
