ASTM A335 P29 Alloy Steel Solid Fin Tubes For Petrochemical Refining Industries
Similar with ASTM A335 P22, P9 also is a chromium-molybdenum (Cr-Mo) alloy steel pipe with a generally uniform wall thickness, designed for high-temperature and corrosive service.But it has better oxidation and sulfidation resistance than P22.It is commonly used in refineries, power plants, and petrochemical industries where higher chromium content is required.
| Advantages |
| Best sulfidation resistance, good for refineries |
| Good Oxidation & Corrosion Resistance |
| High Pressure & Stress Resistance:Suitable for high-pressure steam lines, power plant piping, and refinery heaters. |
| Cost-Effective Compared to Higher Alloy / Thermal Fatigue Resistance / Compatibility with Finned & Bent Configurations |
Chemical Composition (%) max S50400
| Grade | C | Mn | P | S | Si | Cr | Mo |
| P22 | 0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 |
Mechanical Properties S50400
| Grade | Tensile Strength,min | Yield Strength (0.2%Offset,min) |
| TP347H | 60ksi (415 MPa) | 30ksi (205 MPa) |
Role of A335 P9 Alloy Steel Solid Fin Tubes For Petrochemical Refining Industries
The ASTM A335 P9 alloy steel solid finned tubes, due to their high-temperature strength, corrosion resistance and enhanced heat transfer capacity, have become a key component in petrochemical refining. These tubes are widely used in combustion heaters, reformers, cracking units and sulfur recovery systems. In harsh refining environments, they enhance efficiency and durability.
Applications not limited for below
A. Refineries & Petrochemical Plants: Fired Heaters & Cracking Units / Hydrogenation Reactors / Catalytic Reforming Units
B. Power Generation: Superheaters & Reheaters / Waste Heat Recovery Systems
C.Chemical Processing: High-Temperature Reactors / Ethylene & Ammonia Plants
D. Oil & Gas Industry: Thermal Oil Heaters / Sulfur Recovery Units (SRUs)
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ASTM A335 P29 Alloy Steel Solid Fin Tubes For Petrochemical Refining Industries Images
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