| Customization: | Available |
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| After-sales Service: | Supplied |
| Warranty: | 30 Years |
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| Product Name: | Alloy Steel Seamless Pipe | Standard: | ASTM A335 / ASME SA335 |
|---|---|---|---|
| Material: | Gr. P5, P9, P11, P12, P21, P22 , P91 | O.D.: | 1/2" TO 24 " |
| W.T.: | SCH 5 TO SCH XXS | Length: | Single Random, Double Random & Cut Length |
| End: | Plain End, Beveled End | Type: | Seamless |
| Finish: | Cold Drawn, Hot Finish | ||
| Highlight: |
ASME SA335 Alloy Steel Seamless Pipe,Boiler Pipe Alloy Steel Seamless Pipe,ASTM A335 Alloy Steel Seamless Pipe |
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ASTM A335 / ASME SA335 Alloy Steel P5 Seamless Pipe for Boiler Application
ASTM A335 P5 seamless pipes are made of chromium-molybdenum alloy steel, which provides excellent high-temperature strength and corrosion resistance. A335 P5 seamless pipes often undergo a heat treatment process called normalization to improve their mechanical properties and make them suitable for welding and forming.They are known for their high pressure and temperature ratings, making them suitable for applications in power plants, refineries, and petrochemical plants. Pipes like P5 may have a higher initial cost compared to carbon steel pipes, their exceptional performance and durability often result in lower maintenance and replacement costs in the long run, making them a cost-effective choice
Specifications of Alloy Steel Seamless Pipe
| Standard | ASTM A335, ASME SA335 |
| Grade | Gr. P5, P9, P11, P12, P21, P22 , P91 |
| Size | 1/2" TO 24 "IN OD & NB, can custom |
| Schedule | SCH 5- SCH XXS, can custom |
| Type | Seamless |
| Length | Single Random, Double Random & Cut Length |
| End | Plain End, Beveled End |
Chemical composition(%)
| Grade | C | Mn | P≤ | S≤ | Si | Cr | Mo |
| P11 | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
| P22 | 0.05-0.16 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 1.90-2.60 | 0.87-1.13 |
| P5 | ≤0.15 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 4.00-6.00 | 0.45-0.65 |
| P9 | ≤0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 |
| P91 | 0.08-0.12 | 0.30-0.60 | 0.020/0.010 | 0.020/0.010 | 0.02-0.50 | 8.00-9.50 | 0.85-1.05 |
| P92 | 0.07-0.13 | 0.30-0.60 | 0.020/0.010 | 0.020/0.010 | ≤0.50 | 8.50-9.50 | 0.30-0.60 |
Mechanical properties
| Grade | Tensile strength | Yield strength | Elongation |
| P11, P22, P5, P9 | ≥415 | ≥205 | ≥30/20 |
| P91 | ≥585 | ≥415 | ≥20 |
| P92 | ≥620 | ≥440 | ≥20 |
Here are some key advantages of using ASTM A335 P5 seamless tubes:
High Temperature Resistance: ASTM A335 P5 seamless tubes are specifically designed to withstand high temperatures. They can reliably operate in environments with temperatures ranging from -29°C (-20°F) up to 593°C (1100°F). This makes them suitable for applications where elevated temperatures are encountered, such as in boilers, heat exchangers, and power generation systems.
Strength and Durability: The ferritic alloy steel composition of ASTM A335 P5 seamless tubes provides excellent strength and durability. They have high tensile strength and are resistant to deformation under high pressures and temperatures. This ensures the integrity of the tubes even in demanding operating conditions.
Corrosion Resistance: ASTM A335 P5 seamless tubes exhibit good resistance to oxidation and corrosion. The presence of chromium in the alloy composition forms a protective oxide layer on the surface of the tubes, which helps to prevent corrosion and enhances their longevity. This makes them suitable for use in corrosive environments found in industries such as oil and gas, petrochemicals, and refineries.
Seamless Construction: The seamless manufacturing process eliminates the need for welding or joining, resulting in a continuous and homogeneous structure throughout the tube length. This seamless construction provides several advantages, including enhanced strength, improved dimensional accuracy, and reduced risk of leakage or failure at welded joints.
Wide Range of Sizes: ASTM A335 P5 seamless tubes are available in a wide range of sizes and dimensions. This allows for flexibility in designing and constructing piping systems to meet specific project requirements. The availability of various sizes makes it easier to integrate the tubes into existing infrastructure or new installations.
Compatibility: ASTM A335 P5 seamless tubes are compatible with a variety of fittings, valves, and other components commonly used in high-temperature piping systems. This ensures ease of installation and facilitates the integration of the tubes into complex industrial applications.
Applications
ASTM A335 P5 seamless tubes are commonly used in industries such as power generation, oil and gas, petrochemical, and refineries. They are utilized in applications involving high-temperature environments, such as boiler tubes, superheater tubes, heat exchanger tubes, and piping systems for transporting hot fluids.
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