Seamless 309 Stainless Steel Pipe Suppliers
- 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 309 Stainless Steel Pipe
The Seamless 309 Stainless Steel Pipe, provided by Huaxiao stainless steel pipe suppliers, is a standout choice for a wide range of industries, thanks to its exceptional features. This long steel pipe boasts hollow sections without any connections around it, ensuring its structural integrity and durability. Crafted from high-quality stainless acid-resistant steel with rich chromium and nickel content, it offers remarkable corrosion resistance and longevity, making it a reliable choice for demanding applications. Notably, this pipe excels in high-temperature performance, with the ability to withstand extreme heat, repeated heating below 980°C, and corrosive substances. Its mechanical qualities, including robust tensile strength, bending resistance, and impact toughness, make it ideal for high-pressure and heavy-load scenarios. Additionally, the 309 stainless steel seamless pipe is highly versatile for processing, allowing for ease of forming, welding, and machining. Its exceptional resistance to corrosion, impact, abrasion, and wear ensures a long service life, leading to cost savings over time. Innovative snap connections eliminate the need for threads, enabling the use of thin-walled pipes and resource conservation. In summary, the Seamless 309 Stainless Steel Pipe is a versatile and robust solution for industries that require top-tier corrosion resistance, high-temperature performance, and cost-efficient design. It excels in challenging applications and offers exceptional longevity, making it a valuable choice for various industrial needs.
specification Of Seamless 309 Stainless Steel Pipe
Chemical Composition Of Seamless 309 Stainless Steel Pipe
|Chromium (Cr)||22.0 – 24.0%|
|Nickel (Ni)||12.0 – 15.0%|
|Carbon (C)||≤ 0.20%|
|Manganese (Mn)||≤ 2.00%|
|Silicon (Si)||≤ 1.00%|
|Phosphorus (P)||≤ 0.045%|
|Sulfur (S)||≤ 0.030%|
physical property Of 309 Stainless Steel Seamless Pipe
|Melting Point||1398 – 1454°C (2550 – 2650°F)|
|Specific Heat Capacity||502 J/kg·K (0.12 Btu/lb·°F)|
|Electrical Resistivity||0.78 μΩ·m|
|Thermal Conductivity||15.6 W/(m·K)|
|Young’s Modulus (Elasticity)||200 GPa (29,000,000 psi)|
|Magnetic Susceptibility||Magnetic at all temperatures|
|Coefficient of Expansion (20-100°C)||16.2 μm/m·K (9.0 μin/in·°F)|
mechanical property Of 309 Stainless Steel Seamless Pipe
|Tensile Strength (Ultimate)||620 MPa (90,000 psi)|
|Tensile Strength (Yield)||310 MPa (45,000 psi)|
|Elongation at Break||45%|
|Modulus of Elasticity||200 GPa (29,000,000 psi)|
|Hardness (Brinell)||147 (annealed condition)|
|Hardness (Rockwell B)||85 (annealed condition)|
characteristics Of Seamless 309 Stainless Steel Pipe
The key characteristic of the 309 Stainless Steel Seamless Pipe is its precise composition, which consists of stainless acid-resistant steel with elevated levels of chromium and nickel. It adheres to the national standard GB-T with a specific digital grade, namely S30920. This grade corresponds to a new designation, 16Cr23Ni13, while it was previously identified as 2Cr23Ni13. These compositional aspects are fundamental to its exceptional performance in various applications, particularly in high-temperature and corrosive environments.
The heightened chromium content contributes to the pipe’s resistance to corrosion, particularly in the presence of corrosive media like acids and alkalis. Meanwhile, the substantial nickel content enhances its durability and corrosion resistance, making it suitable for demanding industrial scenarios. The specific grade designations ensure that the pipe meets stringent quality and performance standards, reinforcing its reliability and effectiveness in diverse engineering and industrial applications.
The defining characteristic of the Seamless 309 SS Pipe is its remarkable corrosion resistance. This resistance extends to a wide range of corrosive substances, including acids and alkalis, making it exceptionally well-suited for applications where such challenges are prevalent.
The pipe’s excellence in resisting erosion from these aggressive chemical agents is attributed to its specific composition, which includes high levels of chromium and nickel. Chromium forms a protective oxide layer on the surface of the steel, enhancing its resistance to acidic and alkaline attacks. Additionally, the substantial nickel content contributes to its overall corrosion resistance and durability.
In environments where exposure to corrosive substances is a concern, the Seamless 309 Stainless Steel Pipe stands as a dependable choice. Its ability to withstand the erosive effects of acids, alkalis, and various corrosive media ensures that it can maintain its integrity and performance even in challenging conditions. This property is particularly valuable in industries where corrosion resistance is paramount, such as chemical processing, petrochemical, and many other industrial applications.
The exceptional high-temperature performance of the Seamless 309 Stainless Steel Pipe is a result of its unique composition and structural characteristics. This quality makes it an invaluable material for applications in elevated temperature settings.
The pipe exhibits remarkable strength and corrosion resistance even when exposed to high-temperature environments. This resilience is due to the specific alloying elements within the stainless steel, particularly the high levels of chromium and nickel. Chromium forms a protective oxide layer at the surface of the steel, which is stable and effective even at elevated temperatures. This oxide layer serves as a barrier, preventing further oxidation and corrosion, and thus maintaining the pipe’s integrity.
Moreover, the Seamless 309 Stainless Steel Pipe can endure repeated heating cycles below 980°C without suffering from a loss of mechanical properties or corrosion resistance. This attribute is vital in applications where exposure to high temperatures, such as industrial furnaces, exhaust systems, and various heat-treatment processes, is a regular occurrence.
In essence, this high-temperature performance ensures that the Seamless 309 Stainless Steel Pipe remains structurally sound, reliable, and capable of preserving its exceptional strength and corrosion resistance, even under the most demanding high-temperature conditions.
The mechanical qualities of the 309 Stainless Steel Seamless Pipe make it an exceptional choice for applications where high-pressure and heavy loads are common, and structural integrity is paramount.
High-Pressure Endurance: The pipe demonstrates a remarkable ability to withstand high-pressure environments without succumbing to deformation or structural failure. This characteristic is crucial in applications where the transport of fluids or gases under substantial pressure is required, ensuring the pipe’s reliability and safety under such conditions.
Heavy Load Endurance: The 309 Stainless Steel Seamless Pipe is engineered to support heavy loads without warping, bending, or weakening. This property is invaluable in scenarios where the pipe serves as a structural component, supporting the weight of various systems and equipment. Whether it’s used as a part of a framework, piping system, or load-bearing structure, the pipe’s robustness guarantees its long-lasting performance.
Good Tensile Strength: The pipe exhibits exceptional tensile strength, meaning it can resist stretching forces without undergoing material failure. This quality is vital in situations where the pipe is subjected to forces that attempt to elongate it. Its resistance to tensile stress ensures that it remains intact and functional, even when exposed to significant mechanical forces.
Bending Resistance: The 309 Stainless Steel Seamless Pipe displays remarkable resistance to bending, making it suitable for applications where the pipe may need to conform to specific shapes or configurations. Its ability to withstand bending without damage ensures its adaptability in various settings.
Impact Toughness: The pipe possesses impressive impact toughness, enabling it to absorb and withstand sudden or cyclic mechanical shocks. This quality is particularly important in applications where the pipe may be exposed to impacts, vibrations, or other dynamic loads, ensuring its longevity and reliability.
In summary, the mechanical qualities of the 309 Stainless Steel Seamless Pipe guarantee its ability to handle high-pressure and heavy load scenarios while maintaining good tensile strength, bending resistance, and impact toughness. These attributes make it a resilient and dependable choice for a wide range of demanding applications.
The processability of the 309 Stainless Steel Seamless Pipe is a pivotal feature that highlights its versatility in various applications. This characteristic enables the pipe to be seamlessly integrated into complex systems and structures with ease.
Formability: The pipe exhibits excellent formability, meaning it can be shaped or configured into various designs and structures without encountering difficulties. Whether it needs to be bent, twisted, or molded to specific dimensions, its formability allows for seamless adaptation to diverse applications.
Weldability: Welding is a crucial process in many industries, and the Seamless 309 Stainless Steel Pipe excels in this regard. It can be readily welded using either cold or hot working methods. This weldability ensures that the pipe can be securely joined with other components or piping systems, creating a robust and leak-resistant connection.
Machinability: The pipe’s machinability is another notable attribute, facilitating precise and intricate machining operations. Whether it requires drilling, cutting, threading, or other machining processes, the pipe can be easily modified to meet specific requirements, making it highly adaptable to different applications.
The processability of the Seamless 309 Stainless Steel Pipe, through its formability, weldability, and machinability, provides engineers and designers with the flexibility needed to craft solutions tailored to their unique specifications. This characteristic ensures that the pipe can be seamlessly integrated into a wide array of systems and structures, making it an ideal choice for diverse industrial applications.
The strength and durability of the Seamless 309 Stainless Steel Pipe are crucial characteristics that contribute to its reliability and longevity in various applications. These properties enable the pipe to withstand harsh conditions and demanding environments effectively.
Corrosion Resistance: The 309 stainless steel pipe’s exceptional corrosion resistance is a result of its high chromium and nickel content. This composition allows it to withstand media erosion from acids, alkalis, and other corrosive substances. The pipe’s robust resistance to corrosion ensures that it can maintain its structural integrity and performance even in chemically aggressive settings.
Impact Resistance: Its ability to resist impact is another significant feature. The pipe’s material composition and manufacturing processes provide it with resilience against physical impacts, making it suitable for applications where it might encounter mechanical stresses or impacts.
Abrasion Resistance: The 309 stainless steel pipe’s durability extends to abrasion resistance. It can withstand wear and tear caused by friction, making it a reliable choice for applications that involve continuous movement or contact with abrasive materials.
Long Service Life: The combination of its corrosion, impact, and abrasion resistance contributes to a long service life. This means that the Seamless 309 Stainless Steel Pipe is built to last, reducing maintenance requirements and ensuring that it provides reliable performance over an extended period.
In summary, the strength and durability of the Seamless 309 Stainless Steel Pipe are the cornerstones of its reliability in a wide range of applications. Its resistance to corrosion, impact, and abrasion, coupled with its long service life, make it a durable choice for industries where longevity and performance are critical.
The 309 Stainless Steel Seamless Pipe offers cost-efficiency through innovative design features that optimize material usage and flow conditions.
Thin-Walled Design: The pipe’s cost-efficiency is evident in its ability to use thin-walled configurations. This is achieved through the utilization of snap connections that eliminate the need for threads. Thin-walled pipes reduce material costs while maintaining structural integrity and performance.
Optimized Flow Conditions: One of the key cost-saving aspects is the inner diameter expansion for the same nominal diameter. This expansion enhances flow conditions within the pipe. As a result, the pipe conserves the diameter while accommodating the desired flow rate, thus minimizing material usage and reducing associated costs.
The cost-efficiency of the Seamless 309 Stainless Steel Pipe is a valuable advantage for industries looking to optimize their expenses while maintaining the highest quality and performance standards. This innovative design approach allows for the economical use of materials and ensures efficient fluid transport within the pipe.
application Of Seamless 309 Stainless Steel Pipe
Chemical Processing, Petrochemical, and Offshore Industries
The Seamless 309 Stainless Steel Pipe plays a pivotal role in the chemical processing, petrochemical, and offshore industries. Its exceptional corrosion resistance is of paramount importance, especially in aggressive environments. This pipe demonstrates outstanding capabilities in resisting oxidation, scaling, and corrosion caused by acids, alkalis, and various industrial gases. In the chemical processing and petrochemical sectors, where exposure to corrosive substances is a constant concern, the 309 Stainless Steel Pipe is the preferred choice. Moreover, its durability and resilience make it an ideal candidate for offshore applications where it can withstand the harsh conditions of marine environments, ensuring the integrity of critical structures and systems.
Oil Refineries, Chemical Plants, Food Production Facilities, Paper Mills, Power Plants, Breweries, Water Treatment Facilities
Seamless 309 stainless steel pipes find wide-ranging applications in oil refineries, chemical plants, food production facilities, paper mills, power plants, breweries, and water treatment facilities. These industrial settings demand materials that can endure extreme temperatures and harsh chemicals. The 309 stainless steel pipe excels in such environments, offering high-temperature corrosion and oxidation resistance. This makes it indispensable for conveying various substances, managing industrial processes, and maintaining infrastructure. Its strength and corrosion resistance contribute to the efficiency and reliability of critical systems in these industries. Whether in the extreme heat of power generation or the stringent hygiene requirements of food production, the 309 stainless steel pipe proves its mettle.
Petrochemical Processing, Power Generation, Heat Exchangers, and Boilers
Seamless 309 stainless steel pipes are crucial components in applications related to petrochemical processing, power generation, heat exchangers, and boilers. With their unique composition and exceptional corrosion resistance, they are a preferred choice in industries where exposure to harsh chemicals and high temperatures is common. In petrochemical processing, these pipes facilitate the safe transport of various substances. Power generation facilities rely on them for their ability to withstand extreme heat and oxidation. Heat exchangers and boilers benefit from their strength and resilience, ensuring the efficient exchange of thermal energy. These pipes play a pivotal role in maintaining the integrity and performance of equipment in these critical sectors.
The primary distinction between seamless and welded 309 stainless steel pipes lies in their manufacturing processes. Seamless pipes are created by extruding a solid billet through a piercing rod to form a seamless hollow tube, making them devoid of any welded seams. This process ensures uniformity in the pipe’s composition and structure, enhancing its corrosion resistance and high-temperature performance. In contrast, welded pipes are constructed by welding rolled sheets together to create a cylindrical shape. This welding process may introduce some variations in composition and may lead to a slightly reduced corrosion resistance compared to seamless pipes. When seeking stainless steel pipe suppliers, understanding this difference can help in selecting the appropriate pipe for specific applications.
Yes, 309 stainless steel pipes are weldable and machinable. They exhibit good weldability, but it’s important to note that proper welding techniques should be employed, and welding should occur at higher temperatures. Additionally, these pipes can be easily machined, allowing for processes like forming, welding, and machining to be executed effectively. When considering their use, consulting with stainless steel pipe suppliers can provide guidance on the best practices for welding and machining 309 stainless steel pipes.
The main difference between 309 stainless steel seamless pipe and 304 stainless steel pipe lies in their chemical composition and intended use. While both are austenitic stainless steels, 309 stainless steel contains a higher percentage of chromium and nickel, which makes it more suitable for applications in high-temperature and corrosive environments. In contrast, 304 stainless steel is a versatile and widely used stainless steel grade with excellent corrosion resistance but is not as heat-resistant as 309 stainless steel. Consulting with stainless steel pipe suppliers can provide specific guidance on choosing the right grade for your application.
The primary difference between 309 stainless steel seamless pipe and 310 stainless steel pipe lies in their composition and intended applications. Both are high-chromium-nickel austenitic stainless steels. However, 309 stainless steel has a higher chromium and nickel content than 310 stainless steel.
309 stainless steel is best known for its exceptional resistance to high-temperature environments, making it suitable for applications such as furnaces and other heat-treating equipment. On the other hand, 310 stainless steel is specifically designed for high-temperature applications and offers superior oxidation and corrosion resistance, making it ideal for use in industrial heat exchangers, kilns, and other high-temperature environments.
Stainless steel pipe suppliers can provide more detailed information and help you choose the right grade for your specific application.
The difference between 309 stainless steel seamless pipe and 316 stainless steel pipe primarily lies in their chemical composition and intended applications. Both are high-quality stainless steels, but they serve different purposes.
- 309 Stainless Steel: It is an austenitic stainless steel with a higher content of chromium and nickel. This composition imparts excellent heat resistance and corrosion resistance, particularly in high-temperature and aggressive environments.
- 316 Stainless Steel: It is also an austenitic stainless steel, but with a slightly different composition, including molybdenum. This addition enhances its resistance to corrosion, especially in chloride-rich environments, making it suitable for marine and chemical applications.
- 309 Stainless Steel: It is frequently used in applications that require high-temperature resistance, such as furnaces, heat exchangers, and industrial ovens.
- 316 Stainless Steel: It is more commonly employed in environments where resistance to corrosive substances like salt, acids, and chemicals is essential. This includes marine equipment, chemical processing, and medical devices.
Stainless steel pipe suppliers can provide you with more specific details and guidance to select the appropriate stainless steel grade for your particular needs.
Yes, stainless steel pipe suppliers offer customization services to tailor seamless 309 stainless steel pipes to specific industrial needs. They can adjust dimensions, thickness, and even surface finishes according to the requirements of different applications. Additionally, suppliers can provide expertise in choosing the right material grade, ensuring that the pipes are well-suited for the intended use. This customization allows industries to benefit from the unique properties of seamless 309 stainless steel pipes while meeting their precise specifications.