ASTM A335 Grade P9 / UNS S50400 Alloy Steel Seamless Pipe for Boiler
ASME SA335 Grade P9 / UNS S50400 Alloy Steel Seamless Pipe for Boiler
ASME SA335 P9 seamless pipes are vital in various demanding applications, particularly in high-temperature environments. Their properties of strength, durability, and resistance to thermal degradation make them a preferred choice in many sectors. If you have more specific questions or need information on a particular aspect, feel free to ask!
Advantages of Alloy Steel Seamless Pipe Grade P9
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High-Temperature Resistance
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Excellent Mechanical Properties
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Corrosion Resistance
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Seamless Construction
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Versatility
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Cost-Effectiveness
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Improved Fabrication and Welding Characteristics
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Consistency and Reliability
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Availability
Equivalent Material of Alloy Steel P9 Seamless Pipe
| ASTM | ASME | JIS G 3458 | UNS | BS | ISO |
|---|---|---|---|---|---|
| A335 P9 | SA335 P9 | STPA 26 | S50400 | 3604 P1 629-470 | 2604 II TS38 |
Chemical composition(%)
| Grade | C | Mn | P≤ | S≤ | Si≤ | Cr | Mo |
| P11 | .05-0.15 | 0.30-0.60 | 0.025 | 0.025 | .50-1.00 | 1.00-1.50 | .44-0.65 |
| P22 | .05-0.16 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 1.90-2.60 | .87-1.13 |
| P5 | ≤0.15 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 4.00-6.00 | .45-0.65 |
| P9 | ≤0.15 | 0.30-0.60 | 0.025 | 0.025 | .25-1.00 | 8.00-10.00 | .90-1.10 |
| P91 | 0.08-0.12 | 0.30-0.60 | 0.020/0.010 | 0.020/0.010 | .02-0.50 | 8.00-9.50 | .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 | .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 |
Application
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Power Generation
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Petrochemical Industry
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Chemical Processing
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Fossil Fuel and Nuclear Power Plants
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Industrial Boilers
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High-Pressure Steam Systems
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Oil and Gas Industry
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Heat Recovery Systems
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