Product Information for Super Duplex 2507 Tubing and Pipe
Super Duplex 2507, recognized for its outstanding mechanical properties and corrosion resistance, is an exceptional choice for various industries, including oil and gas, chemical processing, and marine applications. This high-performance alloy combines the best characteristics of both austenitic and ferritic stainless steel, making it ideally suited for environments where strength, corrosion resistance, and durability are paramount.
Sizes and Specifications
Super Duplex 2507 tubes and pipes are available in a broad range of sizes and conform to standard tolerances, specifically designed to accommodate the diverse needs of industrial applications. Below is a summary of sizes and specifications:
- Pressure & Corrosion Tubing
- Specification: ASTM A789
- Outer Diameter (OD): Ranges from 1/16" (1.59 mm) to 4" (101.6 mm); metric sizes available.
- Wall Thickness: From 0.010" (0.25 mm) to 0.220" (5.59 mm).
- Lengths: Available in random or cut lengths up to 40' (12.2 m); coils up to 1-1/2" OD.
Standard Tolerances for Super Duplex 2507:
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OD Tolerance:
- For <1-1/2" (38.1 mm): ±0.005" (0.13 mm)
- For 1-1/2" to 3" (76.2 mm): ±0.010" (0.25 mm)
- For 3-1/2" to 4" (101.6 mm): ±0.015" (0.38 mm)
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Wall Thickness Tolerance: ±10%, with random lengths up to +2" (50.8 mm) and cuts of +1/8" (3 mm) - 0".
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Coil Length: Up to 80,000' (24,384 m).
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Subsea Umbilical Tubing
- Specifications: ASTM A789 and ASTM A790
- Sizes: 3/8" (9.53 mm) to 1-1/2" (38.1 mm)
- Wall Thickness: 0.039" (0.99 mm) to 0.125" (3.18 mm)
- Lengths: Cut lengths to 60' (18.3 m); coils up to 1-1/2" OD.
Physical Properties of Super Duplex 2507 Alloys
In the annealed condition, the mechanical properties of Super Duplex 2507 are exceptional, demonstrating high tensile strength and yield strength crucial for demanding applications. Below are the physical properties for the alloys:
| Alloy |
UNS Designation |
Specification |
Tensile Strength (psi) |
Yield Strength (psi) |
Elongation (min. %) |
Grain Size Req. |
Max. Hardness (Rc) |
Modulus of Elasticity (x10^6 psi) |
Mean Coefficient of Thermal Expansion (IN./IN./°F x 10^-6) |
Thermal Conductivity (BTU-in/ ft²-h-°F) |
| Super Duplex 2507 |
S32950 |
A789, A790 |
100,000 |
70,000 |
70 |
20 |
30.5 |
— |
— |
— |
| Super Duplex 2507 |
S32750 |
A789, A790 |
116,000 |
80,000 |
80 |
15 |
32 |
27.5 |
7.2 |
98 |
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Tensile and Yield Strength: These alloys exhibit high tensile strengths (100,000 psi for S32950 and 116,000 psi for S32750) and yield strengths (70,000 psi and 80,000 psi, respectively), ensuring robust performance in high-pressure environments.
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Elongation: The elongation percentages (70% for S32950 and 80% for S32750) provide excellent ductility, offering resilience under stress without fracture.
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Hardness: The maximum hardness values indicated reflect the alloys' capability to maintain mechanical integrity, even under abrasive conditions.
Composition of Super Duplex 2507 Tubing and Pipe
The unique chemistry of Super Duplex 2507 contributes to its remarkable properties, making it a preferred material for a range of applications. Here is the composition of Super Duplex 2507 tubing and pipe:
| Grade |
UNS Designation |
Carbon (C) Max. |
Manganese (Mn) Max. |
Phosphorous (P) Max. |
Sulphur (S) Max. |
Silicon (Si) Max. |
Chromium (Cr) |
Nickel (Ni) |
Molybdenum (Mo) |
Nitrogen (N) |
Iron (Fe) |
Copper (Cu) Max. |
Other Elements |
| Super Duplex 2507 |
S32750 |
0.030 |
1.20 |
0.035 |
0.020 |
0.80 |
24.0–26.0 |
6.0–8.0 |
3.0–5.0 |
0.24–0.32 |
Bal. |
0.50 |
— |
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Carbon Content: The low carbon content (maximum 0.030%) contributes to the alloy's resistance to intergranular corrosion, particularly after welding. This low carbon level helps to minimize the formation of carbides.
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Manganese, Phosphorous, and Sulphur: These elements are controlled to enhance the ductility and toughness of the alloy, ensuring that it can withstand operational stresses without fracture or failure.
-
Chromium and Nickel: The high levels of chromium (24.0-26.0%) provide corrosion resistance, while nickel (6.0-8.0%) enhances toughness and ductility, especially at elevated temperatures. Together, these alloys form a robust austenitic structure that imparts superior strength.
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Molybdenum: The inclusion of molybdenum (3.0-5.0%) further increases resistance to localized corrosion such as pitting and crevice corrosion, especially in chloride environments.
-
Nitrogen: The specified range of nitrogen (0.24–0.32%) contributes to the strength and corrosion resistance of Super Duplex 2507, playing a critical role in stabilizing the microstructure.
-
Iron and Copper: Iron is the primary element, balancing the composition, while controlled copper content (0.50% max) can enhance certain mechanical properties.
Super Duplex 2507 Product Range
Super Duplex 2507 tubing and pipe are produced to meet stringent quality standards and specifications, ensuring that they are suitable for high-performance applications. Here is a summary of the product range:
- Alloy: Super Duplex 2507
- UNS Designation: S32750
- Werkstoff Number: 1.4410
- Specifications: A/SA789, A/SA790
These specifications ensure compliance with industry standards, providing confidence in the material's performance in critical applications where safety and reliability are essential.
Applications of Super Duplex 2507 Tubing and Pipe
Super Duplex 2507 tubing and pipe are utilized in a variety of demanding applications, owing to their unique properties:
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Oil and Gas Exploration: The tubing is used in offshore platforms and subsea applications, where high strength and corrosion resistance are crucial due to harsh underwater environments.
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Chemical Processing: It is ideal for use in chemical reactors, heat exchangers, and pipelines that transport corrosive substances due to its outstanding resistance to pitting corrosion.
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Marine Environments: Super Duplex 2507 is well-suited for applications in marine environments where exposure to seawater and chlorides can lead to significant corrosion risks.
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Desalination Plants: Given its resistance to saline conditions, Super Duplex 2507 is employed in desalination facilities, contributing to improved efficiency and durability.
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Power Generation: This material is frequently used in energy production systems that require high durability under severe thermal and corrosive conditions.
Conclusion
Super Duplex 2507 tubing and pipe represent a superior choice for applications demanding exceptional mechanical properties, corrosion resistance, and reliability. Its unique composition, robust physical properties, and adherence to strict industry standards empower it to excel in demanding environments across various industries.
As industries continue to evolve and the demand for high-performance materials increases, Super Duplex 2507 is poised to remain a leading solution for critical applications. For more information about specifications, pricing, or custom solutions, please contact our knowledgeable sales team, who will be happy to assist you in finding the perfect fit for your needs.
