ASME SA335 Grade P9 Alloy Steel Pipes Manufacture, Supplier And Exporter In India
ASME SA335 Grade P9 Alloy Steel Pipes are engineered for extreme operating conditions, and at Mcneil Instruments, we manufacture them with precision for industries that demand long-term reliability and elevated temperature strength.
P9 alloy pipes contain chromium and molybdenum, delivering outstanding thermal resistance, oxidation control, and creep strength. This makes them ideal for environments where ordinary carbon steel cannot perform efficiently.
Built to international metallurgical standards and tested under rigorous quality procedures, our P9 pipes guarantee superior hardness, stable performance under continuous heat cycles, and leak-free service life, even in highly corrosive processing environments.
We supply and export P9 seamless pipes to power plants, refineries, petrochemical units, boiler manufacturers, energy processing facilities, and EPC contractors worldwide.
Technical Specification of ASME SA335 Grade P9 Alloy Steel Pipes
| Parameter | Specification |
|---|---|
| Composition | Chromium 8–10%, Molybdenum 0.9–1.1% |
| Temperature Range | Up to 650°C |
| Tensile Strength | ≥ 415 MPa |
| Yield Strength | ≥ 205 MPa |
| Hardness | ≤ 90 HRB |
| Standards | ASTM A335 / ASME SA335 |
Key Features & Advantages
Designed for high-temperature & high-pressure operations
Excellent creep & oxidation resistance
Low thermal expansion & consistent strength over long service hours
Precision-finished seamless structure for smooth fluid handling
Available in multiple wall thicknesses, lengths & heat-treatment conditions
When it comes to critical piping systems, quality is not optional — it’s essential.
Mcneil Instruments focuses on delivering globally certified alloy steel pipes with controlled chemistry, heat-treated structure, and zero-defect finishing.
We combine modern manufacturing technology, metallurgical expertise, and strict inspection to ensure every pipe matches demanding industry expectations.
Whether you need bulk supply, cut-to-size pipes, or fast-track shipment, our team ensures reliable delivery and technical support. Choose us for strength, durability, and trusted global supply — all from one source.
Get in touch with our team today for a customized quote and expert guidance for your project requirements.
Frequently Asked Questions – ASME SA335 Grade P9 Alloy Steel Pipes
What is ASME SA335 Grade P9 Alloy Steel Pipe used for?
P9 alloy steel pipes are used in power plants, refineries, boilers, heat exchangers, steam pipelines, and high-temperature pressure systems where durability and heat resistance are essential.
What are the key properties of P9 alloy steel pipes?
P9 pipes offer excellent high-temperature strength, oxidation resistance, creep resistance, and stable performance in thermal processing applications.
Are P9 pipes suitable for boilers?
Yes, Grade P9 is widely used for superheaters, reheaters, and boiler tubes due to its strong resistance to heat and pressure.
Which standards apply to P9 pipes?
P9 pipes are manufactured in line with ASTM A335 and ASME SA335 specifications for seamless ferritic alloy steel pipes.
Do you offer custom sizes for P9 pipes?
Yes, P9 alloy steel pipes are available in custom OD, thickness, and lengths based on project requirements with global delivery support.