Premium ASTM A335 P5 Alloy Steel Seamless Pipes for Extreme Conditions
Amardeep Steel Centre is a leading Manufacturer, Supplier, and Exporter of premium ASTM A33UNS K41545 Pipe (for P5). The "P5" series within the ASTM P5 Pipes, including variants P5b and P5c. As significant grades within the chromium-molybdenum alloy A335 standard signifies a specific P5 Material Composition characterized by approximately 4-6% chromium and 0.45-0.65% molybdenum.
This elevated chromium content significantly enhances the material's resistance to oxidation and steel family; our A335 P5 Alloy Steel Pipe products are engineered for superior performance in high-temperature environments, particularly those involving corrosive media found in oil refineries and petrochemical plants. We deliver robust P5 seamless pipe solutions that sulfidic corrosion at high temperatures, making ASTM S335 Grade P5 Pipe superior to lower chrome alloys in such meet stringent international standards, offering excellent resistance to sulfidation and oxidation.
What Are ASTM A335 P5 Alloy Steel Seamless Pipes?
ASTM A335 P5 Pipe, often referred to as Chrome Moly P5 Pipe or 5Cr-0.5Mo Pipe, is a premium ferritic alloy steel seamless pipe. It's specifically designed for services involving both extreme temperatures and highly corrosive media. This specification encompasses various sub-grades like P5B and P5C, each tailored for specific performance characteristics. The hallmark of P5 material is its 5% Chromium content, which provides exceptional resistance to oxidation and hydrogen attack, making these Alloy Steel P5 Pipes particularly effective against sulfur-bearing crude oils in refining applications.
These pipes are incredibly versatile, ideal for processes that involve bending, flanging, and various welding operations. They also carry the UNS K41545 Pipe designation, ensuring global recognition of their material classification. Our ASTM A335 Grade P5 seamless pipe solutions are trusted for their superior corrosion resistance, high-temperature strength, and excellent ductility, ensuring long-term reliability in critical infrastructure.
Types of ASTM A335 P5 Pipes
ASTM A335 P5 pipes are a type of seamless ferritic alloy-steel pipe primarily used for high-temperature service. While the base "P5" designation refers to a specific chemical composition (approximately 5% chromium and 0.5% molybdenum), there are variations within this grade that offer slightly different properties or are suitable for specific applications.
Here are the main types and variations of ASTM A335 P5 pipes:
This is the standard P5 grade, known for its excellent resistance to sulfidation and oxidation at high temperatures. Its 4-6% Chromium and 0.45-0.65% Molybdenum content provides reliable high-temperature strength. It's a versatile choice, widely used in oil refineries, petrochemical plants, and power generation for furnace tubes, heat exchanger pipes, and boiler components.
This is the standard P5 grade, known for its excellent resistance to sulfidation and oxidation at high temperatures. Its 4-6% Chromium and 0.45-0.65% Molybdenum content provides reliable high-temperature strength. It's a versatile choice, widely used in oil refineries, petrochemical plants, and power generation for furnace tubes, heat exchanger pipes, and boiler components.
ASTM A335 P5c is a titanium-stabilized variant of P5, offering superior weldability and high-temperature stability. The titanium prevents carbide precipitation, enhancing resistance to intergranular corrosion after welding. It's ideal for fabricated components where post-weld heat treatment is difficult.
ASTM A335 P5 Pipe Specifications
Our ASTM A335 P5/5B/5C 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 P5 pipe:
| Specification | Details |
|---|---|
| Standard | ASTM A335 / ASME SA335 |
| Grades | P5, P5B, P5C |
| UNS No. | K41545 (for P5 & P5C); K41245 (for P5B) |
| Trade Names | Chrome Moly P5 Pipe, 5Cr-0.5Mo Pipe, P5 Ferritic Alloy Steel Pipe |
| Manufacturing Process | Seamless (Hot Finished / Cold Drawn) |
| Sizes (NPS) | ½” NB to 24” NB (Nominal Bore); 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 250mm thk.) |
| Length | Single Random (SRL), Double Random (DRL), Cut to Length (up to max 16000 mm) |
| Ends | Plain End (PE), Beveled Ends (BE), Threaded |
| Surface Treatment | Polished, Varnished, Black Painting, Anti-corrosion Oil, 3PE Coating, FBE Coating |
| Pipe Form | Round, Rectangular, Square, Hydraulic, etc. |
ASTM A335 P5 Pipe Material Chemical Composition
The precise chemical composition of P5 material is crucial for its performance in high-temperature and corrosive applications. The controlled additions of Chromium and Molybdenum are key to its metallurgical properties:
| Element | P5 (%) | P5B (%) | P5C (%) |
|---|---|---|---|
| Carbon (C) | 0.05–0.15 | 0.05–0.15 | 0.12 max |
| Manganese (Mn) | 0.30–0.60 | 0.30–0.60 | 0.30–0.60 |
| Phosphorus (P), max | 0.025 | 0.025 | 0.025 |
| Sulfur (S), max | 0.025 | 0.025 | 0.025 |
| Silicon (Si) | 0.50–1.00 | 0.50–1.00 | 0.50–1.00 |
| Chromium (Cr) | 4.00–6.00 | 4.00–6.00 | 4.00–6.00 |
| Molybdenum (Mo) | 0.45–0.65 | 0.45–0.65 | 0.45–0.65 |
| Vanadium (V) | – | 0.20–0.30 | – |
ASTM A335 P5 Pipe Mechanical Properties
Our ASTM A335 P5 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% |
| Elongation (Transverse), min | 20% |
| Hardness, max | 250 HB / 265 HV |
Heat Treatment for ASTM A335 P5 Pipes:
To achieve optimal properties for high-temperature, corrosive service, ASTM A335 P5 Pipes (including P5b, P5c) are supplied in a heat-treated condition:
- Full or Isothermal Anneal: This process softens the P5 material, refines its microstructure, and improves ductility.
- Normalize and Temper: Normalizing involves heating above the upper critical temperature and air cooling, followed by tempering at a temperature typically at or above 675°C (1250°F). This treatment provides a good balance of strength, toughness, and resistance to temper P5 / P5b / P5c
- Tube Equivalent: ASTM A213 T5 / T5b / T5c (similar chemistry for boiler/heat exchanger tubes)
- Forging/Fitting Equivalent: ASTM A182 F5 / ASTM A234 WP5
- Plate (Equivalent Grade): ASTM A387 Grade 5
- DIN / EN (European): Similar grades might include X12CrMo5 or 1.7362
ASTM A335 P9 Pipe Dimensional Tolerances
Dimensional tolerances for ASTM A335 P9 Pipes are critical for ensuring proper fit-up and performance in demanding applications. These tolerances are generally governed by ASTM A999/A999M and ASTM A530/A530M, which are referenced by ASTM A335. Below are typical tolerances:
Outside Diameter (OD) Tolerances for ASTM A335 P9 Pipe:
| Specified Outside Diameter (OD) Range | Tolerance (mm) |
|---|---|
| 6 mm to 40 mm (Approx. ≤ 1.5 inch) | +/- 0.40 mm |
| > 40 mm to 100 mm (Approx. > 1.5 to 4 inch) | +/- 0.79 mm |
| > 100 mm to 200 mm (Approx. > 4 to 8 inch) | +1.59 mm / -0.79 mm |
| > 200 mm to 300 mm (Approx. > 8 to 12 inch) | +2.38 mm / -0.79 mm |
| Over 300 mm (Approx. > 12 inch) | +/- 1% of specified OD |
Wall Thickness (WT) Tolerances for ASTM A335 P9 Pipe:
| Nominal Pipe Size (DN) / Condition | Wall Thickness Tolerance (%) |
|---|---|
| DN 6 to DN 65 (Approx. NPS 1/8 to 2-1/2), all t/D ratios | +20.0% / -12.5% |
| Above DN 65 (Approx. > NPS 2-1/2), where t/D ≤ 5% | +22.5% / -12.5% |
| Above DN 65 (Approx. > NPS 2-1/2), where t/D > 5% | +15.0% / -12.5% (ASTM A999/A530 often states +22.5% / -12.5% for many scenarios, but some interpretations or older versions might list +15%/-12.5% for thicker walls where t/D > 5%. |
Equivalent Materials for ASTM A335 P5
For ease of reference and cross-standard compatibility, the following table lists equivalent materials for ASTM A335 P5 Pipe:
| Standard | Equivalent Material | UNS No. | JIS G 3458 | BS | DIN | ISO |
|---|---|---|---|---|---|---|
| ASTM A335 P5 / ASME SA335 P5 | T5, 12CrMo4-5, 1.7330 | K41545 | STPA 25 | 3604/625 | 17175 12CrMo195 | 2604 II TS54 |
Applications of ASTM A335 P5 Alloy Steel Seamless Pipes
The superior corrosion resistance (especially to sulfur-bearing crude oils) and exceptional high-temperature strength of ASTM A335 P5 Pipe make it indispensable in industries dealing with extreme conditions. These High Pressure P5 Pipe solutions are particularly well-suited for demanding service environments. Key applications include:
- Refineries and Petrochemical Plants: Widely used for critical processes like cracking, reforming, and hydrogenation, where robust resistance to sulfur corrosion and high temperatures is paramount.
- Power Generation: Essential for P5 Boiler Pipe, superheater, and reheater tubing in thermal power plants, managing high temperatures and pressures.
- Heat Exchanger Pipe P5: Ideal for heat exchangers handling corrosive media at elevated temperatures, ensuring efficient heat transfer and longevity.
- Oil and Gas Industry: Crucial for sour service applications and the high-temperature transport of corrosive fluids.
- Chemical Processing: Utilized in various units where resistance to specific chemical attacks and high heat is required for process integrity.
- Industrial Furnaces: For components exposed to prolonged high heat and corrosive gases, providing structural integrity.
- Pressure Vessels: As integral components of pressure systems where robust and highly corrosion-resistant materials are essential for safety and performance.
Why Choose Amardeep Steel for Your ASTM A335 P5 Alloy Steel Seamless Pipes
For your critical ASTM A335 P5, P5b, and P5c pipe needs, Amardeep Steel is your trusted Supplier and Manufacturer in India. Here’s why:
- P5 Series Expertise: Deep knowledge of P5, P5b, and P5c grades, ensuring you get the right Alloy Steel P5 Pipe for your application.
- Large Inventory: Extensive stock of ASTM A335 P5 Alloy Steel Seamless Pipes for quick delivery.
- Certified Quality: ISO 9001 certified, with all P5 Seamless Pipe supplied with MTCs verifying P5 Material Composition.
- Competitive Price: We offer excellent value and a fair Price for high-quality Chrome Moly P5 Pipe.
- Global Exporter: Proven experience in reliably exporting ASTM A335 P5 Pipes worldwide.
- Custom Solutions: Cut-to-length services and support for custom P5 High-Temperature Pipe requirements.
- Expert Support: Our team provides technical guidance for your P5 Refinery Pipe or P5 Boiler Pipe projects.
Choose Amardeep Steel for your ASTM A335 P5, P5b, and P5c pipe needs and benefit from our quality products, industry expertise, and commitment to service excellence.
Related Products
Amardeep Steel is your comprehensive source for high-quality Chrome Moly Alloy Pipes. Our extensive supply range encompasses various grades and specifications to cater to diverse industrial requirements:
- ASTM A335 P1 Alloy Steel Pipes
- ASTM A335 P2 Alloy Steel Pipes
- ASTM A335 P9 Alloy Steel Pipes
- ASTM A335 P11 Alloy Steel Pipes
- ASTM A335 P12 Alloy Steel Pipes
- ASTM A335 P22 Alloy Steel Pipes
- ASTM A335 P91 Alloy Steel Pipes
- ASTM A335 P92 Alloy Steel Pipes
- ASTM A213 T5 Alloy Steel Tubes
- ASTM A213 T5b Alloy Steel Tubes
- ASTM A213 T5c Alloy Steel Tubes
Beyond ASTM A335 P5 Seamless Pipes, Amardeep Steel offers a vast inventory of Other Alloy Steel Pipes & Tubes for diverse industrial needs. Whether you require a standard P5 high-temperature pipe or a specific variant of Chrome Moly pipe, our inventory, manufacturing capability, and expertise ensure we can fulfill your order efficiently and reliably.
Get Your ASTM A335 P5 / P5b / P5c Pipes Price & Consultation
For the latest Price, detailed technical specifications, or to discuss your project requirements for ASTM A335 P5 Pipes, including P5b and P5c variants, contact the alloy steel experts at Amardeep Steel Centre today. We are committed to providing high-quality ASTM A335 P5 Alloy Steel Seamless Pipes and tailored solutions, backed by a thorough understanding of services, custom orders, and expert technical assistance.
FAQ’s About ASTM A335 P5 Pipes
1. What is ASTM A335 P5 material?
ASTM A335 P5 is a seamless ferritic alloy steel pipe designed for high-temperature service, particularly in environments with sulfur compounds. Its key alloying elements are approximately 4-6% Chromium (Cr) and 0.5% Molybdenum (Mo), often called "Chrome-Moly P5 pipe.
2. What is the difference between P5 and P9 material?
Both P5 and P9 are ASTM A335 chrome-moly pipes for high-temperature use. The main difference is their chromium content: P5 typically contains 4-6% chromium, while P9 contains a higher 8-10% chromium. This gives P9 enhanced resistance to oxidation and strength at even higher temperatures compared to P5.
3. What is the composition of P5 steel?
The ASTM A335 P5 Pipe is designed with a chemical composition consisting of carbon, manganese, phosphorus, sulfur, silicon, chromium, and molybdenum. The outstanding content embedded in the ASTM A335 Gr P5 Chrome Moly Pipe gives it enhanced tolerance and resistance in reducing and oxidative environments.
4. What is the ultimate strength of Grade 5 steel?
ASTM A335 P5 pipe, in its properly heat-treated condition, has a minimum tensile strength of 60,000 psi (415 MPa).
5. What is the ASTM equivalent of A335 P5?
Common equivalents for ASTM A335 P5 (UNS K41545) includes: ASME: SA335 P5 and Tube Equivalent: ASTM A213 T5.