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
High-Temperature Resistance
Excellent Mechanical Properties
Corrosion Resistance
Seamless Construction
Versatility
Cost-Effectiveness
Improved Fabrication and Welding Characteristics
Consistency and Reliability
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
Power Generation
Petrochemical Industry
Chemical Processing
Fossil Fuel and Nuclear Power Plants
Industrial Boilers
High-Pressure Steam Systems
Oil and Gas Industry
Heat Recovery Systems
