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2205 duplex stainless steel pipe
China
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 Ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
2205 Duplex Stainless Steel Pipe Product Attributes
| Property | Parameter | Description |
|---|---|---|
| Material Grade | 2205 Duplex Stainless Steel | Lean duplex stainless steel containing Cr 22-23%, Ni 4.5-6.5%, Mo 3-3.5% . |
| Steel Type | Duplex (ferrite + austenite) | Balanced two-phase microstructure combining benefits of both phases . |
| Chromium Content | 22 – 23% | High chromium provides superior corrosion resistance . |
| Nickel Content | 4.5 – 6.5% | Lower nickel than austenitic grades but higher strength . |
| Molybdenum Content | 3 – 3.5% | Key element improving pitting and crevice corrosion resistance . |
| Nitrogen Content | 0.14 – 0.20% | Strengthens austenite phase and enhances corrosion resistance . |
| Carbon Content | ≤ 0.03% | Low carbon prevents sensitization and intergranular corrosion . |
| Density | 7.8 g/cm³ | Lighter than austenitic stainless steel . |
| Melting Point | 1370°C | Temperature at which 2205 stainless steel transitions to liquid state . |
| Tensile Strength | 450 – 650 MPa | Approximately double that of 304; excellent strength . |
| Yield Strength | 275 – 450 MPa | Superior yield strength compared to austenitic grades . |
| Modulus of Elasticity | 200 GPa | Measures stiffness and rigidity of the material . |
| Elongation | ≥ 25% (annealed) | Good ductility; lower than austenitic grades due to duplex structure . |
| Hardness | ≤ 305 HV (annealed) | Higher hardness than austenitic stainless; measured in Vickers units . |
| Pitting Resistance | PREN ≈ 35 | Pitting Resistance Equivalent Number; excellent protection . |
| Outer Diameter (OD) | 5.8 mm – 508 mm | Comprehensive range from small bore to large diameter applications . |
| Wall Thickness | 0.3 – 50 mm | Multiple thicknesses available for various pressure and strength requirements . |
| Operating Temperature | -50°C to +250°C (continuous) | Lower high-temperature capability than austenitic grades . |
| Corrosion Resistance | Superior (vs 304/316) | Excellent resistance to pitting, crevice corrosion, and uniform attack . |
| Chloride Resistance | Excellent | Superior performance in high-chloride and marine environments . |
| Magnetic Properties | Slightly magnetic (due to ferrite) | Magnetic response from ferrite phase; varies with phase balance . |
| Weldability | Good (requires careful control) | Weldable but requires controlled heat input and cooling . |
| Manufacturing Type | Seamless, Welded | Available in both seamless and welded configurations . |
| Standards | ASTM A312, ASTM A213, EN 10088 | Compliance with international duplex pipe standards . |
| Surface Finish | Polished, Pickled, Mill, Bright | Available finishes for different applications and aesthetics . |
| Tolerance (OD) | ±0.3 – 0.5 mm (seamless) | Precision dimensional accuracy per ASTM standards . |
| Cost | Premium (higher than 316) | Significantly higher cost due to alloying elements and superior properties . |
| Stress Corrosion Cracking | Superior resistance | Duplex structure provides better SCC resistance than austenitic . |
| Applications | Oil & gas, desalination, marine, chemical | Used in corrosive environments requiring maximum durability . |
| Weight Savings | ~3% lighter than austenitic | Lower density enables lighter piping systems . |
| Cost-Benefit Analysis | Reduced material costs via efficiency | Thinner walls possible due to higher strength . |
| Pressure Ratings | Up to 5000 PSI | Significantly higher than austenitic grades . |
| Phase Balance | ~50% ferrite, ~50% austenite | Optimized microstructure for combined benefits . |
| Environmental Impact | Lower material volume required | Reduced consumption due to superior strength . |
2205 Duplex Stainless Steel Pipe Product Introduction
Advanced Applications of 2205 Duplex Stainless Steel Pipe in Corrosive Environments
The 2205 duplex stainless steel pipe represents a premium high-performance piping solution engineered for extreme corrosion resistance and superior strength in demanding industrial applications. A 2205 duplex stainless steel pipe delivers exceptional performance in offshore oil and gas installations, desalination facilities, and marine environments where severe saltwater corrosion poses significant material challenges. Industries including chemical processing, petrochemical refining, pulp and paper manufacturing, and marine engineering depend on 2205 duplex stainless steel pipes for reliable performance in highly aggressive corrosive conditions. The 2205 duplex stainless steel pipe excels in transporting seawater, brine solutions, and chloride-rich process fluids where conventional austenitic stainless steels experience rapid pitting and crevice corrosion. Subsea applications, coastal industrial facilities, and chemical plants specify 2205 duplex stainless steel pipes when designing systems requiring maximum pitting resistance equivalent (PREN) and superior corrosion prevention. When selecting 2205 duplex stainless steel pipe solutions for specialized applications, senior engineers prioritize superior pitting resistance, enhanced strength characteristics, and proven performance records in extreme marine and chemical environments. Investment in 2205 duplex stainless steel pipe systems provides measurable advantages including extended service life in aggressive environments, reduced maintenance frequency, enhanced operational reliability, and superior performance compared to conventional austenitic grades in demanding offshore and industrial applications.
Metallurgical Properties and Technical Specifications for 2205 Duplex Stainless Steel Pipe Systems
Understanding the advanced metallurgical composition and precise specifications of 2205 duplex stainless steel pipe ensures optimal material selection for extreme-duty applications. The 2205 duplex stainless steel pipe contains approximately 22% chromium, 5-6% nickel, 3% molybdenum, and balanced nitrogen content, creating a duplex microstructure combining austenitic and ferritic phases for superior strength and corrosion resistance. Standard dimensions for 2205 duplex stainless steel pipes range from 0.5 inches to 12 inches in diameter, with wall thickness schedules including 10S, 40, and 80, accommodating diverse pressure classifications and specialized applications. Seamless 2205 duplex stainless steel pipe variants deliver maximum pressure ratings and enhanced purity essential for critical subsea and offshore applications, while welded options provide economical alternatives for moderate-pressure systems. Tensile strength for 2205 duplex stainless steel pipe typically ranges from 620 to 750 MPa, with yield strength approximately double that of austenitic grades, enabling thinner wall designs and reduced material weight. Pitting resistance equivalent (PREN) for 2205 duplex stainless steel pipe exceeds 35, providing superior resistance to chloride-induced pitting compared to standard 316L grades. Compliance with ASTM A928, ASME SA-928, EN 10088-1, and ISO 1127 standards ensures 2205 duplex stainless steel pipe meets stringent specifications for marine and chemical applications.
Performance Advantages and Strategic Applications of 2205 Duplex Stainless Steel Pipe in Offshore and Industrial Sectors
The exceptional properties of 2205 duplex stainless steel pipe establish it as the premier choice for extreme-duty applications demanding maximum corrosion resistance and superior mechanical strength. Outstanding pitting and crevice corrosion resistance ensures 2205 duplex stainless steel pipe withstands aggressive seawater, brine, and chloride-rich environments where conventional materials rapidly fail. A 2205 duplex stainless steel pipe maintains excellent mechanical properties across extreme temperature ranges, supporting both elevated-temperature and subsea cryogenic applications simultaneously without material degradation. Enhanced strength characteristics of 2205 duplex stainless steel pipe enable thinner wall designs compared to austenitic alternatives, reducing material weight and installation costs while maintaining superior pressure ratings. Superior stress corrosion cracking resistance makes 2205 duplex stainless steel pipe essential in high-strength applications where conventional materials experience catastrophic failure under combined stress and corrosive conditions. Companies and operators investing in 2205 duplex stainless steel pipe infrastructure for offshore, marine, and chemically aggressive applications achieve substantial competitive advantages including extended system lifespan, dramatically reduced maintenance requirements, enhanced safety compliance, superior corrosion prevention, optimized material efficiency, and measurable performance excellence compared to conventional austenitic stainless steel grades in extreme-duty industrial and offshore applications.
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After more than a decade of continuous investment and innovation, Feihong Steel Co., Ltd. has now developed into a leading enterprise in the industry with a complete industrial chain, a wide range of product specifications, prompt supply, excellent product quality, strong industry influence and good social reputation. Currently, our products are mainly sold to the eastern region of China and over 40 countries and regions, such as Southeast Asia, South Asia, West Asia, Eastern Europe, South America, etc. Our stainless steel series products have consistently ranked among the top in China for many years.
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 Ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
