Seamless 2507 Stainless Steel Pipe

Seamless 2507 Stainless Steel Pipe Supplier

  • Size Range: From 4mm4mm to 800mm800mm
  • Wall Thickness Range: From 1mm to 150mm (SCH10-XXS)
  • Length Options: 4000mm, 5800mm, 6000mm, 12000mm, or as required.
  • Finish: 2B, BA,4K,8K, NO.1,2D,3#, HL
  • Type: Round, square, rectangular, hexagonal, flat, angle
  • Technique: Cold rolled, hot rolled

Product Description Of Seamless 2507 Stainless Steel Pipe

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The Seamless 2507 Stainless Steel Pipe, also known as SAF™ 2507, is a super-duplex (austenitic-ferritic) stainless steel designed for extreme corrosive conditions. It boasts remarkable features:

With outstanding resistance to stress corrosion cracking (SCC) in chloride-rich environments, it excels in warding off pitting and crevice corrosion. Furthermore, it exhibits high resistance to general corrosion and offers impressive mechanical strength. Its physical properties provide design advantages, including exceptional resistance to erosion corrosion and corrosion fatigue. Moreover, it boasts good weldability.

This pipe is meticulously crafted from a solid round steel ‘billet,’ meticulously heated and shaped into a hollow form. Grade 2507 showcases unparalleled corrosion resistance against organic acids, with a corrosion rate of less than 0.05 mm/year in 10% formic and 50% acetic acid, surpassing ASTM 316L’s corrosion rate of over 0.2 mm/year.

Engineered for applications demanding both high tensile strength and corrosion resistance, it’s widely used in seawater engineering and the petrochemical industries. Notably, it demonstrates exceptional resistance to pitting, boasting a minimum PRE value of 42.5.

specification Of Seamless 2507 Stainless Steel Pipe

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Chemical Components Of Seamless 2507 Stainless Steel Pipe

ASTM ≤ 0.03≤ 0.8≤ 1.2≤ 0.035≤ 0.026.0-8.024.0-26.03.0-5.00.24-0.32
EN≤ 0.03≤ 1.00≤ 2.00≤ 0.035≤ 0.0156.0-8.024.0-26.03.0-5.00.20-0.30
JIS ≤ 0.03≤ 1.00≤ 1.2≤ 0.035≤ 0.026.0-8.011.5-14.53.0-5.00.24-0.32
GB≤ 0.03≤ 0.08≤ 1.2≤ 0.035≤ 0.026.0-8.024.0-26.03.0-5.00.20-0.32

mechanical property Of Seamless 2507 Stainless Steel Pipe


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characteristics Of Seamless 2507 Stainless Steel Pipe

Huaxiao Stainless Steel Pipe Suppliers

Exceptional resistance to stress corrosion cracking (SCC) in chloride-bearing environments refers to the ability of Seamless 2507 Stainless Steel Pipe (SAF™ 2507) to withstand a specific type of corrosion-related failure. Stress corrosion cracking occurs when a material, under tensile stress, becomes susceptible to cracking in the presence of a corrosive environment, such as one containing chloride ions commonly found in seawater and certain industrial settings.

The term “exceptional” signifies that SAF™ 2507 possesses an exceptionally high level of resistance to this form of corrosion-induced cracking. It means that even when subjected to significant mechanical stress in environments with high chloride concentrations, this stainless steel pipe maintains its structural integrity without developing cracks or fractures. This property is particularly crucial in applications where the material is exposed to seawater, brine, or aggressive chemical environments, as it ensures the long-term reliability and safety of the pipe in such conditions.

Outstanding resistance to pitting and crevice corrosion refers to the remarkable ability of Seamless 2507 Stainless Steel Pipe (SAF™ 2507) to withstand two common forms of localized corrosion, known as pitting and crevice corrosion, in corrosive environments.

  1. Pitting corrosion: Pitting is the formation of small, localized holes or pits on the surface of a material due to the corrosive attack of chloride ions or other aggressive substances. SAF™ 2507 exhibits outstanding resistance to this type of corrosion, meaning it remains largely unaffected by the formation of pits, which can compromise the structural integrity of materials.

  2. Crevice corrosion: Crevice corrosion occurs in confined spaces or crevices, such as gaps, joints, or under deposits on a material’s surface. It is caused by the differential concentration of corrosive agents within these crevices. The exceptional resistance of SAF™ 2507 means it does not succumb to crevice corrosion, even when exposed to challenging environments where many other materials would corrode.

This outstanding resistance to both pitting and crevice corrosion is a critical feature of SAF™ 2507, making it highly suitable for applications in aggressive, chloride-rich environments, such as those found in the petrochemical industry, offshore structures, and marine engineering. It ensures the long-term durability and reliability of the stainless steel pipe in such harsh conditions.

High resistance to general corrosion refers to the ability of Seamless 2507 Stainless Steel Pipe (SAF™ 2507) to withstand corrosion in a wide range of environments without significant degradation or damage. This property is a key characteristic of SAF™ 2507 and contributes to its suitability for various industrial applications, particularly those exposed to aggressive and corrosive conditions.

Here are some key points about its high resistance to general corrosion:

  1. Versatility: SAF™ 2507 is highly versatile and can be used in diverse industries and applications where corrosion is a concern. Its resistance to general corrosion makes it a reliable choice for extended service life.

  2. Corrosive Environments: It remains corrosion-resistant even in challenging environments with exposure to various corrosive agents, including acids, bases, and salts.

  3. Longevity: The ability to resist general corrosion ensures a longer lifespan for the stainless steel pipe, reducing maintenance costs and the need for frequent replacements.

  4. Chemical Processing: SAF™ 2507 is commonly employed in chemical processing plants, where it encounters a wide range of chemicals. Its resistance to general corrosion is especially valuable in such settings.

  5. Marine and Offshore: In marine and offshore applications, where exposure to seawater and salt-laden atmospheres is prevalent, this high resistance is crucial for preventing corrosion-related failures.

  6. Petrochemical Industry: The oil and gas industry also benefits from the general corrosion resistance of SAF™ 2507, particularly in environments with aggressive substances.

Overall, the exceptional resistance to general corrosion makes SAF™ 2507 an attractive material choice for industries and applications where the longevity and reliability of components, like seamless pipes, are of paramount importance.

Impressive mechanical strength refers to the remarkable ability of Seamless 2507 Stainless Steel Pipe (SAF™ 2507) to withstand substantial mechanical loads and stresses without undergoing deformation or failure. This characteristic makes SAF™ 2507 a highly reliable material for various demanding applications, especially those requiring structural integrity and durability. Here’s a detailed explanation of its impressive mechanical strength:

  1. High Tensile Strength: SAF™ 2507 exhibits an exceptionally high tensile strength, which measures its resistance to a force attempting to stretch or pull it apart. This property is crucial for applications where the pipe is subjected to significant tensile forces, such as in pipelines or structural components.

  2. Yield Strength: The yield strength of SAF™ 2507 is also notably high, indicating the level of stress the pipe can endure before it begins to deform plastically. This is particularly advantageous in applications where the material may experience cyclic loading or fluctuating stresses.

  3. Burst Pressure Resistance: The combination of high tensile and yield strength contributes to the pipe’s ability to withstand high internal pressures. This makes it suitable for applications involving the transportation of fluids under pressure, such as in the oil and gas industry.

  4. Impact Resistance: The impressive mechanical strength of SAF™ 2507 extends to its ability to resist impact and shock loads. This is valuable in scenarios where the pipe may encounter sudden impacts or vibrations without suffering damage.

  5. Structural Integrity: In structural applications, where the stability and safety of the overall system depend on the strength of individual components, SAF™ 2507’s mechanical strength ensures the structural integrity of the pipe.

  6. Durability: The robust mechanical properties of SAF™ 2507 contribute to its overall durability, reducing the risk of premature failure and the need for frequent maintenance or replacement.

  7. Long Service Life: Pipes made from SAF™ 2507 can have a longer service life due to their impressive mechanical strength, providing cost savings and reliability in various industries.

In summary, the impressive mechanical strength of SAF™ 2507 stainless steel pipes makes them a preferred choice for critical applications where the ability to withstand high stresses and loads is essential for safety, performance, and longevity.

The beneficial physical properties of Seamless 2507 Stainless Steel Pipe (SAF™ 2507) provide design flexibility, enabling engineers and designers to create innovative solutions for various applications. These physical properties offer advantages in terms of customization, performance, and overall design. Here’s a detailed explanation of how these properties promote design flexibility:

  1. High Density: SAF™ 2507 has a relatively high density, which can be advantageous in applications where weight or mass considerations are important. It allows for precise weight distribution and balance in structural components or systems.

  2. Excellent Formability: The steel’s excellent formability means it can be easily shaped, bent, or molded into complex forms without compromising its structural integrity. This flexibility is especially valuable in industries like construction and manufacturing.

  3. Ductility: Ductility refers to a material’s ability to deform under tensile stress without breaking. SAF™ 2507’s high ductility ensures that it can be stretched or elongated without fracturing, making it suitable for applications that require elongated or curved components.

  4. Machinability: Good machinability means that SAF™ 2507 can be readily machined, cut, or drilled to meet specific design requirements. This property simplifies the manufacturing process and allows for precise customization.

  5. Weldability: The steel’s good weldability facilitates the joining of multiple components through welding, offering design flexibility when constructing complex structures or systems. This property is vital in applications where seamless connections are necessary.

  6. Thermal Conductivity: SAF™ 2507’s thermal conductivity is an essential factor in applications where heat dissipation or temperature control is crucial. It ensures efficient thermal performance and helps prevent overheating.

  7. Electrical Resistivity: The material’s electrical resistivity plays a role in applications requiring electrical conductivity or insulation. Designers can take advantage of this property in electrical and electronic systems.

  8. Corrosion Resistance: While primarily a chemical property, the steel’s resistance to corrosion has a significant impact on design flexibility. It allows for the use of SAF™ 2507 in corrosive environments without the need for additional coatings or protective measures.

  9. Dimensional Stability: SAF™ 2507 maintains its dimensions and shape under varying environmental conditions, ensuring that designed components perform consistently over time.

These beneficial physical properties empower engineers and designers to create tailored solutions for diverse industries such as aerospace, architecture, automotive, and manufacturing. They enable the development of efficient, long-lasting, and cost-effective designs while meeting specific performance and safety requirements.

The strong resistance to erosion corrosion and corrosion fatigue in Seamless 2507 Stainless Steel Pipe (SAF™ 2507) is a crucial characteristic that enhances its durability and reliability in various demanding applications. Here’s a detailed explanation of these resistance properties:

Erosion Corrosion Resistance: Erosion corrosion occurs when a metal surface is damaged or worn away due to the combined effects of corrosion and mechanical wear, such as turbulent fluid flow or abrasive particles. SAF™ 2507 exhibits strong resistance to erosion corrosion, making it ideal for applications where the material is exposed to aggressive fluid environments, high-velocity flows, or abrasive substances.

This resistance is attributed to the steel’s microstructure, which combines austenitic and ferritic phases. The presence of both phases enhances the material’s overall resistance to corrosion, including erosion corrosion. As a result, SAF™ 2507 can withstand erosive conditions for extended periods, minimizing material degradation and maintenance requirements.

Corrosion Fatigue Resistance: Corrosion fatigue is a phenomenon where a material experiences cracking and failure under cyclic loading in a corrosive environment. It’s a common concern in applications where components are subjected to repetitive stresses and exposed to corrosive substances.

SAF™ 2507’s high resistance to corrosion fatigue is attributed to its superior corrosion resistance properties. Even in aggressive chloride-bearing environments, such as seawater or chemical processing, this steel maintains its structural integrity and fatigue resistance over time. This resistance minimizes the risk of premature failure, ensuring the long-term reliability of components made from SAF™ 2507.

Together, the resistance to erosion corrosion and corrosion fatigue ensures that Seamless 2507 Stainless Steel Pipe can withstand harsh operating conditions without significant degradation. This property is especially valuable in industries like oil and gas, chemical processing, and marine engineering, where component longevity and safety are paramount concerns. It allows for the use of SAF™ 2507 in critical applications, contributing to reduced maintenance costs and increased operational efficiency.

application Of Seamless 2507 Stainless Steel Pipe

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Seamless 2507 Stainless Steel Pipe (SAF™ 2507) plays a pivotal role in both seawater engineering and petrochemical industries due to its exceptional corrosion resistance and mechanical strength. Here are detailed applications in these sectors:

Seawater Engineering

Petrochemical Industry

In summary, seamless 2507 stainless steel pipes are essential components in seawater engineering and petrochemical industries. Their corrosion resistance, mechanical strength, and reliability make them indispensable for critical applications in these sectors, ensuring the safety and efficiency of operations.


Huaxiao Stainless Steel Pipe Suppliers

Seamless 2507 stainless steel pipe, also known as SAF™ 2507, is a super-duplex stainless steel, whereas 2205 stainless steel is a duplex stainless steel. The key difference lies in their chemical composition, with 2507 having higher chromium, nickel, and molybdenum content, providing superior corrosion resistance in highly corrosive environments. These differences make 2507 stainless steel pipes more suitable for extreme conditions, such as those found in offshore drilling platforms and aggressive chemical processing. For specific requirements and applications, it’s advisable to consult stainless steel pipe suppliers who can offer guidance on the best choice between the two grades.

Seamless 2507 stainless steel, also known as SAF™ 2507, stands out prominently when compared to various materials in terms of corrosion resistance:

  1. Comparing to Standard Stainless Steels (e.g., 316L and 304): Seamless 2507 stainless steel offers significantly higher corrosion resistance, especially in aggressive environments like seawater and chloride-rich solutions. It has a much higher PREN (Pitting Resistance Equivalent Number) value, making it far less prone to pitting and crevice corrosion compared to standard stainless steels.

  2. Comparing to 2205 Duplex Stainless Steel: While both 2507 and 2205 are duplex stainless steels, 2507 outperforms 2205 in highly corrosive settings. Its higher chromium, nickel, and molybdenum content give it superior resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC) in chloride-bearing environments.

  3. Comparing to Carbon Steels: Seamless 2507 stainless steel is vastly superior in corrosion resistance compared to carbon steels. Carbon steels are susceptible to rapid corrosion in many industrial and marine environments, whereas 2507 stainless steel remains virtually unaffected.

  4. Comparing to Nickel Alloys: In certain situations, seamless 2507 stainless steel can provide similar or even better corrosion resistance than some nickel alloys. This makes it a cost-effective alternative for applications where high corrosion resistance is required.

In summary, the exceptional corrosion resistance of seamless 2507 stainless steel positions it as a top choice for applications in aggressive environments, including seawater engineering, petrochemical processing, and chemical industries. For specific corrosion resistance requirements, consulting stainless steel pipe suppliers is recommended to select the most suitable material.

Joining seamless 2507 stainless steel pipes can be effectively accomplished using several welding methods recommended by stainless steel pipe suppliers:

  1. Gas Tungsten Arc Welding (GTAW or TIG): TIG welding is often preferred for seamless 2507 stainless steel due to its precision and ability to produce high-quality, clean welds. It’s suitable for both thin and thick pipes, ensuring minimal heat input and reduced risk of distortion.

  2. Gas Metal Arc Welding (GMAW or MIG): MIG welding is a semi-automatic process suitable for welding thicker sections of seamless 2507 stainless steel pipes. It offers good deposition rates and is relatively easy to learn and operate.

  3. Shielded Metal Arc Welding (SMAW or Stick): Stick welding is a versatile method suitable for a wide range of pipe thicknesses. It’s often used for field welding and repairs. Proper electrode selection is crucial to ensure high-quality welds.

  4. Flux-Cored Arc Welding (FCAW): FCAW is suitable for welding thicker sections and offers good penetration. It can be used with or without shielding gas, making it adaptable to various welding conditions.

  5. Plasma Arc Welding (PAW): PAW is a specialized welding method suitable for high-precision applications. It produces narrow, deep welds with minimal heat input and distortion.

  6. Submerged Arc Welding (SAW): SAW is commonly used for welding thick-walled pipes in a controlled environment. It offers high deposition rates and produces consistent, high-quality welds.

  7. Orbital Welding: This automated method is suitable for producing repeatable, high-quality welds on seamless 2507 stainless steel pipes, making it ideal for critical applications.

The choice of welding method depends on factors such as pipe thickness, welding environment, and the required quality of the weld. Stainless steel pipe suppliers can provide guidance on selecting the most appropriate welding method based on specific project requirements.

Yes, stainless steel pipe suppliers often offer customization options for seamless 2507 stainless steel pipes. These pipes can be tailored to meet specific size and thickness requirements based on the needs of your project. Customization ensures that the pipes are precisely sized and dimensioned to fit seamlessly into your application, whether it’s for seawater engineering, petrochemical industries, or other demanding environments. Working closely with a reputable stainless steel pipe supplier will allow you to discuss your customization needs and receive pipes that meet your exact specifications.

To source reliable seamless 2507 stainless steel pipes for your specific industry needs, you can consider contacting Huaxiao Metal, a trusted stainless steel supplier known for its quality products. They offer a wide range of stainless steel pipes, including seamless 2507 stainless steel pipes, suitable for various applications, including those in demanding industries like seawater engineering and petrochemicals. Huaxiao Metal’s expertise and commitment to quality make them a reputable choice for your stainless steel pipe requirements.

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