ASTM A335 P11 Chrome Moly Pipe Manufacturer, Supplier, Stockist & Exporter in India
ASTM A335 P11 Chrome Moly Pipes
Mcneil Instruments is a premier ASTM A335 P11 Chrome Moly Pipes Manufacturer, Supplier & Exporter in India, USA, Turkey & Nigeria, delivering high-integrity seamless ferritic alloy steel pipes engineered specifically for high-temperature pressure piping, power generation, refineries, petrochemical plants, and critical industrial processing systems.
ASTM A335 Grade P11 (ASME SA335 Grade P11) is a nominal 1.25Cr-0.5Mo chromium-molybdenum alloy steel seamless pipe grade intended for elevated-temperature service. The addition of chromium boosts high-temperature oxidation and scaling resistance, while molybdenum enhances resistance to thermal creep deformation and elevates yield strength compared to standard carbon steel grades such as ASTM A106 Grade B or A53.
P11 seamless chrome moly pipes are produced across standard schedules, wall thicknesses, and nominal pipe sizes (NPS) governed by ASME B36.10M. Mcneil Instruments manufactures and stocks P11 pipes in normalized and tempered or full-annealed conditions to ensure maximum long-term structural reliability in severe thermal environments.
ASTM A335 P11 Chrome Moly Pipes are extensively used in power plants, petrochemical facilities, oil & gas refineries, boiler systems, heat exchangers, pressure vessels, superheaters and high-pressure steam pipelines.
ASTM A335 P11 Chrome Moly Pipes in Turkey
Mcneil Instruments supplies ASTM A335 P11 Chrome Moly Pipes in Turkey for power generation, petrochemical, refinery, oil & gas and industrial projects. Pipes are available in various sizes, schedules, wall thicknesses and lengths with applicable material certification and export support.
ASTM A335 P11 Chrome Moly Pipes in USA
We supply ASTM A335 P11 Chrome Moly Pipes in the USA for thermal power plants, boilers, refineries, petrochemical facilities, heat exchangers and high-temperature process piping systems. Project-specific specifications, inspection requirements and documentation can be supported.
ASTM A335 P11 Chrome Moly Pipes in Nigeria
Mcneil Instruments supplies ASTM A335 P11 Chrome Moly Pipes in Nigeria for power generation, oil & gas, refinery, petrochemical and industrial applications requiring reliable performance at elevated temperatures and pressures. We provide material certification, inspection assistance and international export logistics.
Our ASTM A335 P11 Chrome Moly Pipes are available in multiple sizes, wall thicknesses and lengths for projects across India, Turkey, USA, Nigeria and other international markets.
Technical Specification of P11 Chrome Moly Pipes
| Parameter | Specification |
|---|---|
| Composition | Chromium 1–1.5%, Molybdenum 0.44–0.65% |
| Temperature Range | Up to 600°C |
| Tensile Strength | ≥ 415 MPa |
| Yield Strength | ≥ 205 MPa |
| Hardness | ≤ 85 HRB |
| Standards | ASTM A335 / ASME SA335 |
Chemical Composition of ASTM A335 P11
The chemical composition of ASTM A335 Grade P11 is precisely balanced to ensure high-temperature strength, weldability, and structural ductility:
| Chemical Element | Specification Limits (%) |
| Carbon (C) | 0.05 – 0.15% |
| Manganese (Mn) | 0.30 – 0.60% |
| Phosphorus (P) max | 0.025% |
| Sulfur (S) max | 0.025% |
| Silicon (Si) | 0.50 – 1.00% |
| Chromium (Cr) | 1.00 – 1.50% |
| Molybdenum (Mo) | 0.44 – 0.65% |
| Iron (Fe) | Balance |
Mechanical Properties of ASTM A335 P11
ASTM A335 P11 seamless pipes undergo stringent testing to meet specified minimum mechanical requirements:
| Mechanical Property | Minimum Standard Requirement |
| Tensile Strength (min) | 415 MPa (60,000 PSI) |
| Yield Strength (0.2% offset, min) | 205 MPa (30,000 PSI) |
| Elongation in 2 in. / 50 mm (min) | Longitudinal: 30% | Transverse: 20% |
| Hardness (max) | 163 HBW / 85 HRB |
Allowable stress values and pressure-temperature limits must be established according to the applicable construction code (e.g., ASME B31.1 or ASME B31.3).
Equivalent Grades
| Standard | Grade |
| ASTM | A335 P11 |
| ASME | SA335 P11 |
| ASTM | A213 T11 |
| ASME | SA213 T11 |
| DIN | 13CrMo4-5 (Comparable) |
What is ASTM A335 P11 Chrome Moly Pipe?
ASTM A335 P11 Chrome Moly Pipe is a seamless ferritic chromium-molybdenum alloy steel pipe specifically designed for elevated-temperature and high-pressure service. Manufactured according to ASTM A335 / ASME SA335, P11 contains approximately 1.00–1.50% chromium and 0.44–0.65% molybdenum, providing a balanced combination of strength, oxidation resistance and thermal stability.
Chromium improves resistance to oxidation and scaling, while molybdenum contributes to high-temperature strength, creep resistance and structural stability. These properties allow P11 Chrome Moly Pipes to perform reliably during prolonged exposure to elevated temperatures and demanding pressure conditions.
P11 Chrome Moly Pipes are widely preferred for steam piping, boiler systems, superheaters, heat exchangers and industrial process piping where strength, durability and dependable high-temperature performance are essential.
Key Applications of ASTM A335 P11 Chrome Moly Pipes
- Thermal power plants
- Boiler and steam piping systems
- Superheaters and reheaters
- Petrochemical plants
- Oil & gas refineries
- Heat exchangers
- Pressure vessels
- High-pressure steam pipelines
- Chemical processing plants
- Industrial process piping
ASTM A335 P11 Chrome Moly Pipes in Turkey
Mcneil Instruments supplies ASTM A335 P11 Chrome Moly Pipes in Turkey for power generation, refinery, petrochemical, oil & gas and industrial projects. Pipes are available in various sizes, schedules and wall thicknesses with applicable material certification.
ASTM A335 P11 Chrome Moly Pipes in USA
We supply ASTM A335 P11 Chrome Moly Pipes in the USA for boilers, steam systems, heat exchangers, refineries, petrochemical facilities and high-temperature process applications. Project-specific specifications and inspection requirements can be supported.
ASTM A335 P11 Chrome Moly Pipes in Nigeria
Mcneil Instruments supplies ASTM A335 P11 Chrome Moly Pipes in Nigeria for power plants, oil & gas facilities, refineries, petrochemical projects and industrial process systems requiring dependable high-temperature performance. Quality documentation, inspection assistance and international export logistics are available.
Mcneil Instruments supplies ASTM A335 P11 Chrome Moly Pipes across India, Turkey, USA, Nigeria and other international markets, supporting industrial and EPC projects with certified materials, technical assistance and export support.
Types of ASTM A335 P11 Chrome Moly Pipes We Supply
Mcneil Instrument manufactures and supplies:
- ASTM A335 P11 Seamless Chrome Moly Pipes
- ASTM A335 P11 Welded Chrome Moly Pipes
- ASTM A335 P11 ERW Pipes
- ASTM A335 P11 EFW Pipes
- ASTM A335 P11 Round Pipes
- ASTM A335 P11 Boiler Pipes
- ASTM A335 P11 Heat Exchanger Pipes
- ASTM A335 P11 High Pressure Pipes
- ASTM A335 P11 Alloy Steel Pipes
- ASTM A335 P11 Chrome Moly Tubes
Features of ASTM A335 P11 Chrome Moly Pipe
- Excellent high-temperature strength
- Superior oxidation resistance
- Outstanding creep resistance
- Excellent thermal fatigue resistance
- High pressure handling capability
- Good corrosion resistance
- Excellent weldability
- High dimensional accuracy
- Long operational service life
- Low maintenance requirements
Applications of ASTM A335 P11 Chrome Moly Pipe
Our ASTM A335 P11 Chrome Moly Pipes are widely used in:
- Thermal Power Plants
- Petrochemical Plants
- Oil & Gas Industry
- Petroleum Refineries
- Chemical Processing Plants
- Boiler Systems
- Heat Exchangers
- Superheaters
- High Pressure Steam Pipelines
- Pressure Vessels
- Fertilizer Plants
- Industrial Furnace Systems
- Process Piping Systems
- Offshore Energy Projects
- Power Generation Facilities
Worldwide Supply & Export Network
Mcneil Instruments manufactures and exports ASTM A335 P11 Chrome Moly Pipes globally:
- Manufacturer in India: Supplying major industrial hubs in Mumbai, Gujarat, Chennai, Hyderabad, Pune, and Kolkata.
- Supplier in USA: Serving power generation, oil & gas, and refinery projects across North America.
- Supplier in Middle East (UAE, Saudi Arabia, Qatar, Kuwait, Oman): Supplying high-temperature piping for hydrocarbon refineries and power stations.
- Supplier in Turkey & Nigeria: Supporting power plant modernizations and industrial process plants.
Why Choose Mcneil Instruments?
Mcneil Instruments is a leading ASTM A335 P11 Chrome Moly Pipe Manufacturer, Supplier, Stockist & Exporter in India, supplying high-quality chromium-molybdenum alloy steel pipes for critical high-temperature and high-pressure applications. Our P11 pipes are manufactured using certified raw materials and undergo stringent quality inspections to ensure excellent mechanical performance, dimensional accuracy, oxidation resistance and dependable long-term service.
We supply ASTM A335 P11 Chrome Moly Pipes to customers across India, Turkey, USA, Nigeria and other international markets, supporting power generation, refinery, petrochemical, oil & gas and industrial projects.
Our Advantages
- ISO-certified manufacturing
- Certified chrome moly alloy steel raw materials
- Precision production processes
- Hydrostatic Testing
- Ultrasonic Testing (UT)
- Eddy Current Testing
- Positive Material Identification (PMI)
- Mechanical testing
- Chemical analysis
- Dimensional inspection
- Visual inspection
- EN 10204 3.1 Mill Test Certificates
- Complete material traceability
- Third-party inspection available
- Large ready stock
- Custom sizes and schedules
- Competitive pricing
- Worldwide exports
- Dedicated technical support
- Fast delivery
Global Supply & Export Support
Mcneil Instruments supplies ASTM A335 P11 Chrome Moly Pipes in India, Turkey, USA and Nigeria, along with other international markets. We support EPC contractors, industrial manufacturers and project procurement teams with technical guidance, quality documentation, inspection services and international logistics.
Looking for reliable P11 Chrome Moly Pipes for your project? Contact us today for fast quotations, technical support and dependable global delivery.
Frequently Asked Questions – P11 Chrome Moly Pipes
What is ASTM A335 P11 Chrome Moly Pipe?
ASTM A335 P11 Chrome Moly Pipe is a seamless ferritic chromium-molybdenum alloy steel pipe designed for high-temperature and high-pressure service. Its chromium and molybdenum content provides excellent oxidation resistance, creep strength and thermal stability.
What are ASTM A335 P11 Chrome Moly Pipes used for?
P11 pipes are commonly used in thermal power plants, boilers, superheaters, reheaters, refineries, petrochemical plants, heat exchangers, pressure vessels and high-pressure steam piping systems.
What are the main benefits of P11 Chrome Moly Pipes?
The key benefits include high-temperature strength, good creep resistance, oxidation resistance, thermal stability, corrosion resistance and reliable performance during prolonged elevated-temperature service.
What is the chemical composition of ASTM A335 P11?
ASTM A335 P11 contains approximately 1.00–1.50% chromium and 0.44–0.65% molybdenum, along with controlled amounts of carbon, manganese, silicon, phosphorus and sulfur as specified by the applicable standard.
Does Mcneil Instruments export ASTM A335 P11 Chrome Moly Pipes?
Yes. Mcneil Instruments exports ASTM A335 P11 Chrome Moly Pipes from India to markets including the USA, Turkey, Nigeria, UAE, Saudi Arabia, Qatar, Kuwait, Oman, UK, Germany and other international destinations, with material certification, inspection support and export logistics.