Project Description
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P22 Chrome-Molybdenum Alloy Steel Seamless Pipes for Nuclear Power Station Applications
Premium Quality by FUSHUN STEEL TUBE – Leading Manufacturer
P22 Steel Grade Introduction and Applications
FUSHUN STEEL TUBE specializes in manufacturing premium P22 chrome-molybdenum alloy steel seamless pipes specifically designed for nuclear power station applications. P22 steel represents an advanced chrome-molybdenum alloy grade that delivers exceptional performance in high-temperature and high-pressure environments typical of nuclear power generation facilities, offering superior properties compared to P11 grade.
As a leading manufacturer in the steel tube industry, FUSHUN STEEL TUBE produces P22 pipes that comply with ASME SA335 standards, making them ideal for carbon and alloy products in nuclear station island and conventional island applications. Our P22 seamless pipes are engineered to withstand elevated temperatures up to 649°C (1200°F) while maintaining structural integrity and excellent corrosion resistance.
The P22 grade offers enhanced creep strength, improved oxidation resistance, and superior high-temperature mechanical properties compared to lower chrome-molybdenum grades, making it the preferred choice for critical nuclear power station components operating under severe service conditions.
Primary Applications:
- Nuclear power station high-temperature superheater tubes
- Steam generation equipment and reheater tubes
- High-pressure boiler headers and manifolds
- Heat exchanger tubes in nuclear facilities
- Primary steam piping systems
- Reactor pressure vessel internal components
- Secondary steam generator tubes
P22 Chemical Composition
FUSHUN STEEL TUBE’s P22 seamless pipes are manufactured with precise chemical composition control to ensure optimal performance in nuclear applications. The P22 chrome-molybdenum alloy composition meets ASME SA335 specifications with enhanced chrome content for superior high-temperature performance:
| Element | Composition % | Purpose |
|---|---|---|
| Carbon (C) | 0.05 – 0.15 | Strength and hardness |
| Manganese (Mn) | 0.30 – 0.80 | Deoxidization and strength |
| Phosphorus (P) | 0.030 max | Controlled impurity |
| Sulfur (S) | 0.030 max | Controlled impurity |
| Silicon (Si) | 0.50 max | Deoxidization agent |
| Chromium (Cr) | 1.90 – 2.60 | Enhanced oxidation resistance |
| Molybdenum (Mo) | 0.87 – 1.13 | High-temperature creep strength |
The enhanced chromium (1.90-2.60%) and molybdenum (0.87-1.13%) content in P22 steel provides superior high-temperature properties and exceptional corrosion resistance for demanding nuclear power station applications.
Available Size Specifications
As a professional manufacturer, FUSHUN STEEL TUBE offers P22 seamless pipes in comprehensive size ranges to meet diverse nuclear power station requirements:
Outside Diameter (OD)
17mm – 1200mm
Complete range for all nuclear applications
Wall Thickness (WT)
3.5mm – 120mm
Heavy wall capabilities for extreme pressure applications
Stock and Custom Manufacturing
Standard sizes are available in stock – Welcome to inquire for immediate pricing and availability!
We also accept custom manufacturing orders. Please contact FUSHUN STEEL TUBE to discuss the specific dimensions we can produce for your nuclear power station projects.
Mechanical Properties and Performance
FUSHUN STEEL TUBE’s P22 seamless pipes deliver exceptional mechanical properties essential for nuclear power station applications at elevated temperatures, offering superior performance compared to P11 grade:
| Property | Minimum Value | Units |
|---|---|---|
| Tensile Strength | 415 | MPa (60 ksi) |
| Yield Strength (0.2% offset) | 205 | MPa (30 ksi) |
| Elongation | 30 | % in 2 inches |
| Hardness | ≤ 192 | HB |
Superior High-Temperature Performance:
P22 steel maintains excellent strength and superior creep resistance at temperatures up to 649°C (1200°F), offering enhanced performance compared to P11 grade for the most demanding nuclear power station superheater and reheater applications.
Heat Treatment Requirements
FUSHUN STEEL TUBE’s P22 seamless pipes undergo precise heat treatment processes to achieve optimal properties for nuclear power station applications:
Normalizing
Temperature: 900-950°C (1650-1740°F)
Purpose: Refine grain structure and eliminate stress
Tempering
Temperature: 700-750°C (1290-1380°F)
Purpose: Achieve optimum strength and toughness
All FUSHUN STEEL TUBE P22 pipes receive appropriate heat treatment to ensure compliance with ASME SA335 requirements and optimal performance in high-temperature nuclear power station environments.
P22 vs P11 Comparative Advantages
| Property | P11 Grade | P22 Grade | Advantage |
|---|---|---|---|
| Chromium Content | 1.00-1.50% | 1.90-2.60% | Enhanced oxidation resistance |
| Molybdenum Content | 0.44-0.65% | 0.87-1.13% | Superior creep strength |
| Service Temperature | up to 593°C | up to 649°C | Higher operating temperature |
Standards and Quality Assurance
FUSHUN STEEL TUBE manufactures P22 seamless pipes in strict compliance with international standards, ensuring the highest quality for nuclear power station applications:
Primary Standard
ASME SA335 Grade P22
Application Standard
Nuclear Power Station Grade
FUSHUN STEEL TUBE Manufacturing Excellence
As a leading manufacturer in the steel tube industry, FUSHUN STEEL TUBE is committed to delivering superior P22 seamless pipes for nuclear power station applications. Our state-of-the-art manufacturing facilities and rigorous quality control processes ensure every pipe meets the demanding requirements of nuclear applications.
Bulk Order Specialist
We welcome large volume orders and offer competitive pricing for bulk purchases. Contact us for special pricing on large nuclear power station projects.
Quality Guarantee
Every P22 pipe undergoes comprehensive testing including hydrostatic, ultrasonic, and eddy current inspection to ensure nuclear-grade quality.
P22 Technical Summary
| Specification | P22 Grade |
|---|---|
| Outside Diameter Range | 17mm – 1200mm |
| Wall Thickness Range | 3.5mm – 120mm |
| Chromium Content | 1.90 – 2.60% |
| Molybdenum Content | 0.87 – 1.13% |
| Maximum Service Temperature | 649°C (1200°F) |
| Primary Standard | ASME SA335 |
Ready to Order P22 Chrome-Molybdenum Seamless Pipes?
FUSHUN STEEL TUBE is your trusted manufacturer for nuclear-grade P22 seamless pipes.
Contact us today for competitive pricing on bulk orders and custom manufacturing solutions for your nuclear power station projects.
FUSHUN STEEL TUBE – Your Reliable Partner for Nuclear Power Station Piping Solutions
Experienced 15+ Years
Our ability to purchase materials directly from leading mills at the best possible price will give you the competitive edge. This coupled with a skilled workforce dedicated to embracing the demands of the markets.
We Can Supply Follows Products with High Quality:
- Cold Rolled Steel Tube
- Cold Drawn Steel Tube
- Hollow Bar
- Honed Tube
- Plated Tube
- Plated Bar
- Boiler Tube
All Products According Quality Standard Strictly:
- ASTM: ASTM A519, ASTM A513.
- JIS:JIS G3441, JIS G3445, JIS G3466, JIS G3459.
- DIN: DIN1626, DIN1629, DIN2391, DIN2393, DIN2448, DIN2458.
- EN: EN10305.
- BS: BS6323.
Wide Range of Pipes to Fit Your Industry:
- OD from 5mm to 820mm.
- Wall Thickness from 0.1 to 100mm.
- Length up to 50mtr per pc.
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