Premium ASTM A335 P22 Alloy Steel Seamless Pipes – Engineered for High-Temperature, High-Pressure Applications
Amardeep Steel Centre is a distinguished Manufacturer, Supplier, and Exporter of premium ASTM A335 P22 Pipes. As a cornerstone grade in the chromium-molybdenum alloy steel family, our A335 P22 Alloy Steel Pipe products are engineered for exceptional durability and performance in demanding high-temperature and High Pressure Pipe environments. We deliver robust P22 seamless pipe solutions that meet stringent international standards, making them a trusted choice for critical applications in power generation, petrochemical processing, and oil refineries.
Understanding ASTM A335 P22 Alloy Steel Seamless Pipes
ASTM A335 P22, also widely known as 2.25Cr-1Mo pipe or Chrome Moly P22 pipe, is a high-performance ferritic alloy steel seamless pipe specifically designed for elevated temperature and pressure service. This widely recognized specification covers both nominal and minimum wall thickness seamless ferritic Alloy Steel P22 Pipes. Its unique composition, primarily defined by its chromium and molybdenum content, makes it indispensable for critical applications where extreme heat, corrosive environments, and high operational stresses are prevalent.
Pipes manufactured to ASTM A335 P22 / ASME SA335 P22 standards are inherently suitable for demanding operations such as bending, flanging (vanstoning), and various similar formation operations, as well as for fusion welding. This versatility, coupled with its superior metallurgical properties, ensures its reliability in complex piping systems.
The core strength of P22 material lies in its carefully controlled chemical composition, which bestows upon it exceptional high-temperature strength, excellent oxidation resistance, and remarkable creep resistance. The addition of Molybdenum significantly enhances its creep strength, making it ideal for continuous high-temperature service up to 540-750°C. Chromium, on the other hand, contributes to its superior tensile, yield, and hardness properties even at room temperatures, alongside improved oxidation resistance.
You may also find this grade referred to by its UNS K21590 Pipe designation, highlighting its standardized material classification. At Amardeep Steel, we specialize in providing high-quality ASTM A335 Grade P22 seamless pipe solutions that meet and exceed international quality benchmarks, ensuring optimal performance and longevity for your critical applications.
ASTM A335 P22 Pipe Specifications
Our ASTM A335 P22 Alloy Steel Seamless Pipes are produced and supplied to precise specifications, ensuring compliance with the highest industry standards. Below is a detailed overview of the technical parameters for our Chrome Moly P22 pipe:
| Specification | Details |
|---|---|
| Standard | ASTM A335 / ASME SA335 |
| Grade | P22 (2.25Cr-1Mo) |
| UNS Number | K21590 |
| Trade Name | 2 ¼ Chrome Pipe, Chrome Moly P22 Pipe |
| Manufacturing Process | Seamless (Hot Finished or Cold Drawn) |
| Sizes (NPS) | ½” NB to 24” NB; Specialized in Large Diameter Sizes |
| Outer Dimensions (OD) | 19.05 mm – 114.3 mm (and larger as per NPS) |
| Wall Thickness (Schedule) | SCH 20, SCH 40, SCH STD, SCH 80, SCH XS, SCH 160, XXS (up to 250 mm thick) |
| Length | Single Random, Double Random, Cut to Length (up to max 16000 mm) |
| Ends | Plain End (PE), Beveled Ends (BE), Threaded |
| Surface Treatment | Polished, Varnished, 3PE Coating, FBE Coating |
| Pipe Form | Round, Rectangular, Square, Hydraulic, and other customized forms |
ASTM A335 P22 Material Chemical Composition
The precise chemical composition of P22 material is critical for its performance in high-temperature applications. The controlled additions of Chromium and Molybdenum are key to its metallurgical properties of all Alloy Steel P22 Pipes:
| Element | Percentage (%) |
|---|---|
| Carbon (C) | 0.05 - 0.15 |
| Manganese (Mn) | 0.30 - 0.60 |
| Phosphorus (P), max | 0.025 |
| Sulfur (S), max | 0.025 |
| Silicon (Si), max | 0.50 |
| Chromium (Cr) | 1.90 - 2.60 |
| Molybdenum (Mo) | 0.87 - 1.13 |
- Chromium (Cr): A vital alloying element that significantly improves high-temperature strength, increases oxidation resistance, and enhances tensile, yield, and hardness properties at room temperatures.
- Molybdenum (Mo): Crucial for increasing strength, elastic limit, wear resistance, impact qualities, and hardenability. It also enhances resistance to softening, restrains grain growth, makes chromium steel less susceptible to embrittlement, and is the most effective additive for increasing high-temperature creep strength and corrosion resistance.
ASTM A335 P22 Pipe Mechanical Properties
Our ASTM A335 P22 seamless pipes exhibit excellent mechanical properties, making them reliable for demanding service conditions:
| Property | Value |
|---|---|
| Tensile Strength, min | 60,000 psi (415 MPa) |
| Yield Strength, min | 30,000 psi (205 MPa) |
| Elongation (Longitudinal), min | 30% (for pipe thickness above 8mm) |
| Elongation (Transverse), min | 20% (for pipe thickness above 8mm) |
ASTM A335 P22 Pipe Equivalent Materials & Standards:
| Specification | Equivalent / Details |
|---|---|
| ASME | SA335 P22 |
| Tube Equivalent | ASTM A213 T22 (Similar chemistry for boiler, superheater, and heat exchanger tubes) |
| Forging/Fitting Equivalent | ASTM A182 F22 / ASTM A234 WP22 |
| Plate Equivalent Grade | ASTM A387 Grade 22 / ASME SA387 Grade 22 |
| Welded Pipe Standard | ASTM A691 Class 2-1/4CR (for similar chemistry) |
| DIN / EN (European) | Material No. 1.7380 or Designation 10CrMo9-10 |
Heat Treatment for ASTM A335 P22 Pipes:
Proper heat treatment is essential to achieve the desired mechanical properties and microstructure for P22 material. Our pipes undergo precise heat treatment processes:
- Full or Isothermal Anneal: This process involves heating the pipe to an appropriate austenitizing temperature followed by slow cooling (full anneal) or holding at a specific subcritical temperature for transformation (isothermal anneal). This treatment results in a softened material with a refined microstructure and improved ductility.
- Normalize and Temper: Normalizing consists of heating the pipe above its upper critical temperature and then cooling in still air. This is subsequently followed by tempering, which involves reheating to a temperature typically at or above 675°C (1250°F) and holding for a specific duration. This N&T process imparts an excellent combination of strength, toughness, and creep resistance to the Chrome moly P22 pipe.
Applications of ASTM A335 P22 Alloy Steel Seamless Pipes
The exceptional high-temperature strength, creep resistance, and corrosion resistance of ASTM A335 P22 seamless pipes make them indispensable in a wide array of demanding industrial applications. These High Pressure Pipe solutions are particularly suited for environments involving elevated temperatures and pressures. Key applications include:
- Power Generation: Widely used in thermal and nuclear power plants for steam lines, headers, and Boiler tube P22 applications, where high temperatures and pressures are encountered.
- Petrochemical and Chemical Processing: Critical for transporting high-temperature and corrosive fluids in refineries, chemical plants, and processing units.
- Oil and Gas Industry: Essential for off-shore oil drilling companies, gas processing facilities, and pipelines transporting heated hydrocarbons.
- Heat Exchangers and Condensers: Employed in heat transfer systems where excellent thermal stability and corrosion resistance are required.
- Pulp and Paper Industry: Used in various high-temperature processes within paper mills.
- Pharmaceutical Equipment: Utilized in processes requiring sterility and resistance to chemical interactions at elevated temperatures.
- Specialty Chemical Industries: For handling aggressive chemicals and processes at high temperatures.
- Sea Water Equipment: Selected for certain components due to its enhanced corrosion resistance.
Quality Control & Testing for P22 Seamless Pipes
At Amardeep Steel, our commitment to delivering superior quality ASTM A335 P22 Alloy Steel Pipe is underscored by our stringent quality control measures and comprehensive testing protocols. Each pipe undergoes a series of rigorous inspections and tests to ensure its metallurgical integrity, dimensional accuracy, and optimal performance in critical applications. We strictly adhere to the guidelines outlined in ASTM A999/A999M for common requirements for stainless and alloy steel pipe.
Our testing procedures include:
- Tensile Tests: Both Transverse and Longitudinal tensile tests are performed to verify the material's strength and elongation properties (in accordance with ASTM A370).
- Flattening Test: This test assesses the pipe's ductility and its ability to withstand deformation without cracking.
- Hardness Test: Conducted as per ASTM A92 to ensure the material meets specified hardness requirements.
- Bend Test: Performed to evaluate the pipe's ductility and its ability to resist cracking when bent.
- Hydrostatic Test: Each pipe is subjected to a hydrostatic pressure test to confirm its leak tightness and structural integrity.
- Non-Destructive Testing (NDT):
- Ultrasonic Testing (E213): Utilized to detect internal flaws or discontinuities within the pipe wall.
- Eddy-Current Examination (E309): Employs electromagnetic induction to detect surface and near-surface defects.
- Flux Leakage Examination (E570): Specifically for ferromagnetic steel pipe products, this method detects surface and subsurface defects.
- Chemical Analysis: Detailed chemical analysis (spectrographic) is performed on each heat to verify the precise P22 chemical composition and ensure it meets the ASTM A335 P22 specifications.
- Dimensional Inspections: Thorough checks for outer diameter, wall thickness, length, straightness, and end preparation to ensure compliance with dimensional standards like ASME B36.10M.
- Visual Inspection: Comprehensive visual inspection for surface defects, cleanliness, and overall finish.
These meticulous testing procedures guarantee that every P22 seamless pipe from Amardeep Steel is of the highest quality, reliable, and fit for the most demanding high-temperature services.
Why Choose Amardeep Steel for Your ASTM A335 P22 Pipes?
Amardeep Steel is your premier Manufacturer, Supplier, and Exporter of ASTM A335 P22 Pipes in India and for the global market:
- Decades of Expertise: Extensive experience and in-depth knowledge of P22 material, its P22 Material Composition, properties, and diverse industrial applications.
- Comprehensive Stock & Availability: We maintain a substantial inventory of ASTM A335 P22 Alloy Steel Seamless Pipes in a wide array of sizes and schedules to ensure rapid delivery and meet urgent project needs.
- Unwavering Commitment to Quality: Our ISO 9001 certified quality management system and rigorous testing protocols ensure that every ASTM A335 Grade P22 seamless pipe meets or exceeds international standards. Full MTCs detailing the P22 chemical composition and mechanical properties are provided.
- Competitive Pricing Structure: We offer an optimal Price for high-quality Chrome moly P22 pipe, delivering exceptional value without compromising on quality or service.
- Global Export Network: Proven capabilities in efficiently exporting P22 seamless pipe worldwide, with robust packaging and adherence to international logistics standards.
- Customization & Value-Added Services: We provide cut-to-length services, custom orders, and expert technical assistance to help you select and specify the ideal A335 P22 Alloy Steel Pipe for your application.
Related Products to ASTM A335 P22 Pipes
Amardeep Steel is your one-stop solution for a wide array of high-quality Chrome Moly Alloy Pipes. Our extensive supply range covers various grades and specifications to cater to diverse industrial requirements:
- ASTM A335 P1 Alloy Steel Pipes
- ASTM A335 P5 Alloy Steel Pipes
- ASTM A335 P9 Alloy Steel Pipes
- ASTM A335 P11 Alloy Steel Pipes
- ASTM A335 P12 Alloy Steel Pipes
- ASTM A335 P91 Alloy Steel Pipes
- ASTM A335 P92 Alloy Steel Pipes
- ASTM A213 T22 Seamless Tubes
Discover our full range of Alloy Steel Pipes & Tubes tailored for diverse industrial needs. From the workhorse P22 high-temperature pipe to specialized Chrome Moly pipe grades, Amardeep Steel combines extensive inventory, manufacturing capability, and deep expertise to deliver efficiently and reliably. Contact us to discuss your specific alloy steel requirements.
Get a Quick Quote for ASTM A335 P22 Seamless Pipes Today!
Are you in search of reliable, high-quality ASTM A335 P22 Seamless Pipes for your critical industrial applications? Look no further than Amardeep Steel. As a premier Manufacturer, Supplier, and Exporter from India, we are committed to providing you with superior A335 P22 Alloy Steel Pipe products at competitive prices.
Don't compromise on quality or performance for your demanding projects. Contact Amardeep Steel Centre today for a competitive ASTM A335 P22 Pipe Price and expert assistance tailored to your specific project requirements. Our dedicated team is ready to answer your questions and help you find the perfect P22 seamless pipe solution.
Alloy Steel Grade P22 Pipe Price in India
Please note that the following prices for ASTM A335 P22 Pipes are indicative and subject to change based on market fluctuations, order quantity, specific dimensions, mill origin, and other factors. For the most current Price and a customized quotation, we strongly encourage you to contact us directly.
| Size | Indicative Price - MSL Make (₹) | Indicative Price - ISMT Make (₹) | Indicative Price - JSL Make (₹) |
|---|---|---|---|
| 1/2" | 4,264.71 | 4,257.35 | 4,272.06 |
| 3/4" | 4,044.12 | 4,036.76 | 4,051.47 |
| 1" | 3,897.06 | 3,889.71 | 3,904.41 |
| 1.25" | 3,852.94 | 3,845.59 | 3,860.29 |
| 1.5" | 3,750.00 | 3,742.65 | 3,757.35 |
FAQ’s About A335 P22 Alloy Steel Seamless Pipes
1. What is A335 P22 material?
ASTM A335 P22 is a seamless alloy steel pipe, often called "2 ¼ Chrome" pipe. It's made with chromium (approx. 2.25%) and molybdenum (approx. 1%) added to carbon steel, giving it excellent strength for high-temperature services.
2. What is the typical hardness of ASTM A335 P22 pipe?
After proper heat treatment, ASTM A335 P22 pipe typically has a maximum hardness of 250 HBW (Brinell Hardness). This ensures a good balance of strength and toughness for its intended applications.
3. What is the recommended temperature range for ASTM A335 P22 pipe?
ASTM A335 P22 pipes are designed for high-temperature service, typically suitable for continuous operation at wall temperatures up to around 590-600°C (1094-1112°F). Specific heat treatment (like normalizing and tempering) ensures it performs well in this range.
4. What is the main difference between P22 and P91 pipes?
Both are chrome-moly pipes, but P91 has much higher chromium (around 9%) and added elements like Vanadium and Niobium. This makes P91 stronger and more creep-resistant at even higher temperatures than P22 (which has about 2.25% chromium). P91 is a "Creep Strength Enhanced Ferritic" (CSEF) steel.
5. What is the chemical composition of ASTM A335 Gr P22?
The typical P22 chemical composition includes, Chromium (Cr): 1.90-2.60%, Molybdenum (Mo): 0.87-1.13%, Carbon (C): 0.05-0.15%, Manganese (Mn): 0.30-0.60%, Silicon (Si): 0.50% max, Phosphorus (P) & Sulfur (S): Low limits (e.g., 0.025% max each).