ASME SA335 Grade P11 Alloy Steel Pipes Manufacturer, Supplier, and Exporter in India
Introduction
ASME SA335 Grade P11 alloy steel pipes are designed to withstand extreme pressure and temperature conditions, making them ideal for high-temperature services such as power plants, oil refineries, and petrochemical processing units. Known for their enhanced creep strength and thermal stability, P11 pipes are the go-to solution for demanding industrial applications.
Mcneil Instrument is a trusted manufacturer, supplier, and exporter of ASME SA335 Grade P11 alloy steel pipes in India. With a focus on precision, quality assurance, and global compliance, we deliver products tailored to the most challenging industrial requirements.
Why Choose ASME SA335 Grade P11 Pipes?
ASME SA335 P11 is a seamless ferritic alloy steel pipe grade formulated for elevated temperature service. The key alloying elements—chromium (1.00–1.50%) and molybdenum (0.44–0.65%)—significantly boost oxidation resistance, creep strength, and structural integrity in high-heat and high-pressure environments.
Key Features:
- Superior strength and stability at high temperatures
- Excellent resistance to corrosion and oxidation
- Outstanding thermal conductivity and weldability
- Longevity in power generation, refineries, and chemical plants
Technical Specifications & Mechanical Properties of ASME SA335 Grade P11 Alloy Steel Pipes
| Property | Details |
| Standard | ASME SA335 / ASTM A335 |
| Grade | P11 (UNS K11597) |
| Manufacturing Process | Seamless |
| Heat Treatment | Normalized and Tempered |
| Surface Finish | Black, Bare, Varnished, or Galvanized |
| End Type | Beveled / Plain / Threaded |
| Applications | Boilers, Pressure Vessels, Heat Exchangers |
ASME SA335 Grade P11 Alloy Steel Pipes Mechanical Properties
| Property | Value |
| Tensile Strength | ≥ 415 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 163 HBW |
| Operating Temperature | Up to 600°C (continuous) |
Dimensions & Wall Thickness Chart of ASME SA335 Grade P11 Alloy Steel Pipes
| Nominal Pipe Size (NPS) | Wall Thickness (Schedule) |
| ½″ – 24″ | SCH 40, SCH 80, SCH 160, XXS |
| Dimensional Standards | ASME B36.10M, B36.19M |
| Tolerances | As per ASTM A999 / A530 |
ASME SA335 Grade P11 Alloy Steel Pipes Certifications
| Certification | Details |
| ASME SA335 / ASTM A335 | Material Compliance |
| EN 10204 3.1 / 3.2 | Mill Test Certification |
| IBR Approved | For Indian Boiler Regulation Applications |
| NACE MR0175 | For Sour Service Conditions |
| ISO 9001:2015 | Quality Management Compliance |
Available Sizes & Specifications of ASME SA335 Grade P11 Alloy Steel Pipes
| Pipe Size Range (NPS) | Schedule / Thickness | Length |
| ½″ to 24″ | SCH 40 to SCH XXS | 5 to 12 meters (or custom) |
| Custom Sizes | On Request | Based on Project Specs |
Global Reach of Mcneil Instrument: ASME SA335 P11 Alloy Steel Pipes
- In Saudi Arabia, Mcneil Instrument is a trusted manufacturer of ASME SA335 P11 pipes used extensively in high-efficiency boiler systems and petrochemical complexes.
- In Qatar, we are a leading exporter, supplying seamless P11 alloy steel pipes for refinery upgrades and thermal projects.
- In Nigeria, Mcneil Instrument acts as a dependable supplier of ASME SA335 P11 pipes, supporting power plants and high-pressure steam pipelines.
- As an experienced exporter in Ghana, we deliver P11 alloy steel pipes customized for heat exchangers and pressure vessels.
- In Texas, we serve as a reputed manufacturer and supplier, providing P11 pipes to thermal plants and process facilities meeting stringent ASME and ASTM standards.
- From Chicago, we operate as a reliable exporter, supplying precision-engineered P11 pipes to the energy and chemical sectors.
- In Malaysia, Mcneil is recognized as a top supplier and exporter of ASME SA335 P11 pipes for process piping in petrochemical industries.
- In Singapore, we are a leading manufacturer and exporter, delivering P11 pipes for offshore oil platforms and marine boilers.
- Across Brazil, we support refinery and fertilizer industries as a long-standing supplier of P11 alloy steel pipes.
Conclusion
ASME SA335 Grade P11 alloy steel pipes deliver consistent strength, corrosion resistance, and performance in demanding environments. As a seasoned manufacturer, supplier, and exporter, Mcneil Instrument guarantees reliable, certified, and tailored pipe solutions for clients across the globe.
