ASTM A335 / ASME SA335 Grade P91 Pipes Supplier and Exporter | UNS K91560, STBA 26 & DIN 1.4903 | Leoscor Alloy Pipes
ASTM A335 / ASME SA335 Grade P91 Pipes supplied by Leoscor Alloy Pipes are advanced chromium-molybdenum alloy steel pipes designed for high-temperature and high-pressure applications. These pipes provide excellent creep strength, thermal stability, and reliable performance under extreme operating conditions.
Grade P91 Alloy Steel Pipes contain chromium, molybdenum, vanadium, and niobium elements that improve high-temperature strength, oxidation resistance, and long-term mechanical stability. These properties make them suitable for critical applications in power generation and industrial processing systems.
Leoscor Alloy Pipes is a trusted manufacturer, stockist, supplier, and exporter of ASTM A335 P91 Pipes, available in different sizes, schedules, wall thicknesses, and customized specifications according to industrial requirements.
ASTM A335 Grade P91 Pipes are seamless ferritic alloy steel pipes manufactured for elevated temperature service. These pipes are designed to withstand high pressure, thermal stress, and continuous operation in demanding industrial environments.
The advanced alloy composition of SA335 P91 Alloy Steel Pipes provides excellent creep resistance, oxidation resistance, and mechanical strength at elevated temperatures. Due to their superior performance, these pipes are widely used in modern power plants and high-temperature piping systems.
The grade is internationally identified through different designations including UNS K91560 Pipes, STBA 26 Pipes, DIN 1.4903 Pipes, and 9Cr-1Mo-V-Nb Pipes.
Leoscor Alloy Pipes supplies premium-quality Alloy Steel Pipes including ASTM A335 P91 Pipes with customized dimensions, inspection documents, and technical support. Contact us today to discuss your requirements and get a competitive quotation.
Equivalent Names of ASTM A335 Grade P91 Pipes
| Equivalent Name | Standard / Country | Explanation |
|---|---|---|
| UNS K91560 Pipes | USA (Unified Numbering System) | Material designation used for Grade P91 Alloy Steel Pipes. |
| STBA 26 Pipes | Japan (JIS Standard) | Japanese designation used for Grade P91 Pipes. |
| DIN 1.4903 Pipes | Germany / Europe (DIN/EN Standard) | European material number for Grade P91 Pipes. |
| 9Cr-1Mo-V-Nb Pipes | Common Alternative Name | Chromium-molybdenum-vanadium-niobium alloy steel description. |
Key Features of ASTM A335 P91 Pipes
- Excellent creep strength
- High-temperature mechanical stability
- Superior oxidation resistance
- Excellent thermal fatigue resistance
- High-pressure performance
- Long service life
- Suitable for critical power applications
ASTM A335 Grade P91 Pipes Specifications
Standard specifications for Alloy ASTM A335/ASME SA335 Grade P91 Pipes. If any specification is not mentioned here, you can contact us. We also manufacture and export any custom specification as per clients requirement.
| Specifications | ASTM A 335 / ASME SA 335 |
| Dimensions | ASTM, ASME and API |
| Size | 15 NB to 300 NB |
| Specialized in | Large Diameter Size |
| Schedule | Sch. 40s To Sch. XXs (heavier on request) |
| Type | Seamless / ERW / Welded / Fabricated / CDW |
| Form | Round, Hydraulic Etc |
| Length | Single Random, Double Random & Cut Length. |
| End | Plain End, Beveled End, Treaded |
Alloy ASME SA335 Grade P91 Pipes - Industries & Applications
Our pipes and tubes are used in a wide range of applications and various industries. Below are a few of them:
- Gas Processing Industries
- Petrochemical Industries
- Power Generation Industries
- Food Processing Industries
- Chemical Industries
- Oil & Gas Industries
- Fertilizers Industries
- Sugar Industries
Types of ASME SA335 Grade P91 Pipes
| ASTM A335 Grade P91 Welded Pipes | Grade P91 ASME SA335 Welded Pipes |
| Alloy ASME SA335 Grade P91 Welded Pipes | Grade P91 ASTM A335 Alloy Welded Pipes |
| ASTM A335 Grade P91 Seamless Pipes | Grade P91 ASME SA335 Seamless Pipes |
| Alloy ASME SA335 Grade P91 Seamless Pipes | Grade P91 ASTM A335 Alloy Seamless Pipes |
| ASTM A335 Grade P91 ERW Pipes | Grade P91 ASME SA335 ERW Pipes |
| Alloy ASME SA335 Grade P91 ERW Pipes | Grade P91 ASTM A335 Alloy ERW Pipes |
| ASTM A335 Grade P91 Fabricated Pipes | Grade P91 ASME SA335 Fabricated Pipes |
| Alloy ASME SA335 Grade P91 Fabricated Pipes | Grade P91 ASTM A335 Alloy Fabricated Pipes |
| ASTM A335 Grade P91 CDW Pipes | Grade P91 ASME SA335 CDW Pipes |
| Alloy ASME SA335 Grade P91 CDW Pipes | Grade P91 ASTM A335 Alloy CDW Pipes |
Grade P91 ASTM A335 Pipes Chemical Composition
| Grade | ASTM A335/ASME SA335 Grade P91 | |
|---|---|---|
| min | max | |
| C | 0.08 | 0.12 |
| Mn | 0.30 | 0.60 |
| Si | 0.20 | 0.50 |
| P | – | 0.020 |
| S | – | 0.010 |
| Cr | 8.00 | 9.50 |
| Mo | 0.85 | 1.05 |
ASTM A335 Grade P91 Pipes Mechanical Properties
| Grade | ASTM A335/ASME SA335 Grade P91 | |
|---|---|---|
| Tensile Strength, MPa | 585 min | |
| Yield Strength, MPa | 415 min | |
| Elongation, % | 20 min | |
Alloy ASTM A335 Grade P91 Pipes Equivalent Grades
| Grade | ASTM A335/ASME SA335 Grade P91 | |
| UNS No | K11522 | |
| Old British | BS | – |
| En | – | |
| Euronorm | No | – |
| AFNOR | – | |
| GOST | – | |
| Japanese JIS | – | |
ASME SA335 Grade P91 Alloy Pipes Price List
Leoscor Alloys is one of the most competitive suppliers of pipes and tubes from India. Our prices for ASTM A335/ASME SA335 Grade P91 Pipes are very competitive.
Please click on the request a quote button or click here to request the updated price list and ready stock information along with your requirement. Leoscor Alloys maintains a stock of all standard items and can export them at best price for Alloy Steel ASTM A335/ASME SA335 Grade P91 Seamless and Welded Pipes.
ASTM A335 Grade P91 Pipe Stock Availability
We maintain huge inventories of all standard sizes and grades. Please send us your complete requirement and we will send you the availability with the best quote for ASTM A335/ASME SA335 Grade P91 Pipes.
Why Buy ASTM SA335 Grade P91 Pipes from Leoscor Alloys
Leoscor Alloys is a leading stockist, distributor, and supplier of ASTM A335/ASME SA335 Grade P91 Pipes from India. With more than three decades of experience, we understand the steel industry deeply. We have huge experience of supplying to all major industries across the world. Our team of dedicated experts with stringent quality policy ensures that we supply best-in-class products meeting and exceeding our client’s expectations. Below are a few quick points about why buying from Leoscor Alloys will give you an undue advantage:
- Huge inventory of all standard sizes and grades.
- Distributors of all reputed origins and manufacturers.
- Strict quality control policies and highly experienced team.
- Strong logistics & delivery channels.
- Modern Infrastructure with huge storage capacity.
- An ISO 9000:2015 Certified Company.
Prominent Countries where we export ASME SA335 Grade P91 Pipes
Exporting Pipes & Tubes to Singapore, Malaysia, Hongkong, Thailand, Indonesia, Taiwan. Other countires includes Afghanistan, Albania, Andorra, Austria, Bahrain, Bangladesh, Bhutan, Brunei, Belarus, Belgium, Bulgaria, Cambodia, China, Cyprus, Croatia, Czech Republic, Denmark, Estonia, Egypt, Finland, France, Germany, Greece, Georgia, Hungary, Iceland, Ireland, Italy, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Lebanon, Latvia, Latin America, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Maldives, Mongolia, Myanmar (Burma), Nepal, North Korea, Netherlands, Norway, Oman, Poland, Portugal, Pakistan, Palestine, Philippines, Qatar, Russia, Romania, Russia, San Marino, Serbia and Montenegro, Slovakia, Slovenia, Spain, Sweden, Switzerland, Saudi Arabia, South Korea, South Africa, Sri Lanka, Syria, Tanzania, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United Kingdom, United Arab Emirates (UAE), Uzbekistan, Vietnam, Yemen.
We are one of the top:
- Pipes exporters to Singapore
- Pipes exporters to Malaysia
- Pipes exporters to Hongkong
- Pipes exporters to Thailand
- Pipes exporters to Indonesia
- Pipes exporters to Taiwan
