321 Stainless Steel Tube 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 321 Stainless Steel Welded Tube
321 stainless steel welded tube is a high temperature alloy steel with excellent heat and corrosion resistance. It is made by adding titanium elements to the 321 stainless steel base material to form stable titanium carbide, which improves oxidation resistance and corrosion resistance. This makes 321 stainless steel welded tube excellent in high temperature and corrosive environments, especially suitable for applications in petrochemical, chemical industry, food processing and pharmaceuticals.
Our 321 stainless steel welded tube has excellent strength and durability for a variety of projects requiring high reliability. It possesses excellent corrosion resistance to acidic and alkaline media and shows good resistance to high temperature oxidation and sulfide corrosion.
Huaxiao stainless steel tube suppliers follow international standards and conduct strict quality control to ensure that every 321 stainless steel welded tube has consistently excellent performance. We pay attention to details and are committed to providing the best solutions for our customers.
Specification of 321 Stainless Steel Welded Tube
Description of 321 Stainless Steel Welded Tube
ISO Name | ASTM | DIN / EN | JIS | GB | Other |
X6CrNiTi18-10 | S32100 321 | 1.4541 | SUS321 | S32168 | 06Cr18Ni11Ti 0Cr18Ni10Ti |
Mechanical Properties of 321 Stainless Steel Welded Tube
321 | Y.S./Mpa ≥ | T.S./Mpa ≥ | E.L./% ≥ | HB ≤ | HRB ≤ | HBW ≤ | HV ≤ |
ASTM | 205 | 515 | 40 | – | 95 | 217 | – |
JIS | 205 | 520 | 40 | 187 | 90 | – | 200 |
GB | 205 | 520 | 40 | – | 95 | 217 | 220 |
Physical Properties of 321 Stainless Steel Welded Tube
| 321 | Density (g/cm³) | Melting point (℃) | Thermal conductivity (W/m-K) | Coefficient of thermal expansion (10^-6/K) |
| ASTM | 7.93 | 1398-1420 | 16.3 | 16.5 |
| JIS | 7.93 | 1398-1420 | 16.3 | 16.5 |
| EN | 7.93 | 1398-1420 | 16.3 | 16.5 |
| GB | 7.93 | 1398-1420 | 16.3 | 16.5 |
Features of 321 Stainless Steel Welded Tube
321 stainless steel welded tube is known for its excellent heat resistance. Its ability to exhibit excellent performance and stability in high temperature environments makes it ideal for use in many areas of the thermal industry. Whether in high-temperature furnaces or in high-temperature processing equipment, 321 stainless steel welded tube can withstand extreme temperatures up to 800°C without distortion or damage. As stainless steel tube suppliers, we offer a high quality range of 321 stainless steel welded tubes to meet the needs of various heat resistant applications.
321 stainless steel welded tube is highly sought after for its good corrosion resistance. It uses the addition of titanium as an alloying element, making it excellent in corrosive environments. 321 stainless steel welded tube is resistant to a wide range of corrosive media, including organic acids, inorganic acids, oxidizers, and high-temperature gas environments. Whether in acidic environments or in high temperature and pressure gas or liquid media, 321 stainless steel welded tube retains its original strength and corrosion resistance. As stainless steel tube suppliers, we offer high quality 321 stainless steel welded tubes to meet various corrosion resistance needs.
321 stainless steel welded tube is known for its exceptionally high strength and durability. Due to its excellent stability in high-temperature environments and strong mechanical properties, 321 stainless steel welded tube is ideal for a variety of applications requiring high strength and durability. It has excellent tensile strength and resistance to stress corrosion cracking and is able to maintain excellent mechanical properties at high temperatures. This enables 321 stainless steel welded tubes to withstand great stresses and loads in high temperature and pressure environments, ensuring reliable operation and long-term stability of the project. As stainless steel tube suppliers, we offer high-quality 321 stainless steel welded tubes with superior strength and durability to meet various demanding engineering requirements.
321 stainless steel welded tubes are highly praised for their excellent processing properties. The addition of titanium makes 321 stainless steel welded tube have excellent thermal processing properties. Its ability to maintain good plasticity and ductility at high temperatures allows for smooth and flexible processing. 321 stainless steel welded tube can be easily customized in various shapes and sizes by conventional hot working methods, such as hot rolling, cold rolling, forging and heat treatment. As stainless steel tube suppliers, we offer high quality 321 stainless steel welded tubes with excellent processing properties to meet the various processing needs of our customers.
321 stainless steel welded tubes are highly sought after for their reliable material stability. Thanks to its special alloy composition, 321 stainless steel welded tubes have excellent resistance to high temperatures and corrosion, making them ideal for a variety of demanding applications. The addition of titanium effectively suppresses the risk of intergranular corrosion and precipitation phase formation, thus providing excellent material stability. This allows 321 stainless steel welded tubes to maintain their mechanical and chemical properties over time at high temperatures and in corrosive media, avoiding material loss and degradation. Not only that, but 321 stainless steel welded tube also has good resistance to stress corrosion cracking, maintaining its integrity and reliability in stressful environments. As stainless steel tube supplier, we are committed to providing high quality 321 stainless steel welded tubes to ensure the best level of material stability.
Application of 321 Stainless Steel Welded Tube
oil and gas industry
321 stainless steel welded tubes are extensively utilized in the oil and gas industry due to their exceptional properties. One of the primary applications of 321 stainless steel welded tubes in the oil and gas sector is in the construction of well casings and tubing. These tubes provide excellent resistance to corrosive fluids and gases, ensuring the integrity and longevity of the oil and gas wells. They are also used in the production and transportation of oil and gas, including pipelines, gathering lines, and distribution systems. Furthermore, these tubes find applications in other critical equipment within the oil and gas sector, such as heat exchangers, separators, and pressure vessels. The excellent heat resistance and corrosion resistance of 321 stainless steel make it suitable for handling the demanding conditions and aggressive substances encountered in oil and gas processing facilities. 321 stainless steel welded tubes, supplied by reputable stainless steel tube suppliers, are integral components in the oil and gas industry.
chemical industry
In the chemical industry, 321 stainless steel welded tubes play a vital role in various applications, thanks to their unique characteristics and reliability. One prominent application of 321 stainless steel welded tubes in the chemical industry is in the construction of reaction vessels and storage tanks. Another common application is in the production of heat exchangers and condensers. The excellent heat resistance of 321 stainless steel enables efficient heat transfer and ensures the integrity of the equipment even in challenging operating conditions. These tubes are also utilized in piping systems for chemical transportation, providing reliable and leak-free connections. Stainless steel tube suppliers play a crucial role in meeting the demands of the chemical industry. They provide high-quality 321 stainless steel welded tubes that comply with industry standards and specifications. These suppliers ensure the availability of a wide range of sizes and configurations to meet the diverse needs of chemical processing facilities.
food and pharmaceutical industries
In the food and pharmaceutical industries, 321 stainless steel welded tubes find extensive applications due to their superior characteristics and compliance with stringent hygiene and safety standards. One key application of 321 stainless steel welded tubes in the food industry is in the manufacturing of sanitary piping systems. These tubes ensure the safe and hygienic transportation of food products, such as beverages, dairy, and processed foods. In the pharmaceutical sector, 321 stainless steel welded tubes are widely used in the production of pharmaceutical processing equipment. These tubes are utilized in the construction of reactors, storage vessels, and piping systems that handle pharmaceutical ingredients and products. The high-temperature resistance and corrosion resistance of 321 stainless steel ensure the purity and integrity of pharmaceutical substances during processing and storage. Stainless steel tube suppliers play a crucial role in providing reliable and high-quality 321 stainless steel welded tubes to the food and pharmaceutical industries.
automotive and transportation industry
In the automotive and transportation industry, 321 stainless steel welded tubes play a crucial role in various applications due to their exceptional properties and reliability. One key application of 321 stainless steel welded tubes in the automotive sector is in exhaust systems. These tubes are utilized in the construction of exhaust pipes, mufflers, and catalytic converters, where they withstand high temperatures and corrosive gases generated during combustion. Additionally, 321 stainless steel welded tubes find application in the manufacturing of structural components in transportation vehicles. These tubes are used in chassis frames, roll bars, and suspension systems, where their high strength and resistance to fatigue and vibration are crucial. Stainless steel tube suppliers play a vital role in the automotive and transportation industry by providing high-quality 321 stainless steel welded tubes.
marine industry
In the maritime and offshore engineering industry, 321 stainless steel welded tubes are widely employed for their exceptional characteristics and suitability in harsh marine environments. One significant application of 321 stainless steel welded tubes in the maritime industry is in the construction of piping systems and structural components on ships and offshore platforms. These tubes are utilized for the transportation of fluids, such as seawater, fuel, and chemicals, as well as for supporting structures exposed to marine conditions. Another essential use of 321 stainless steel welded tubes is in offshore oil and gas exploration and production. These tubes are employed in subsea pipelines, risers, and other components that require resistance to corrosion and high-pressure environments. Stainless steel tube suppliers play a crucial role in the maritime and offshore engineering industry by providing high-quality 321 stainless steel welded tubes.
construction and architectural industry
In the construction and architectural industry, 321 stainless steel welded tubes offer versatile and reliable solutions for various applications. One notable application of 321 stainless steel welded tubes in the construction industry is in the fabrication of structural frameworks, such as columns, beams, and supports. The high strength and mechanical properties of these tubes ensure structural integrity and load-bearing capabilities in buildings and infrastructure projects. In the realm of architectural design, 321 stainless steel welded tubes find use in creating aesthetically pleasing elements. These tubes can be utilized for handrails, balustrades, facades, and other decorative features, adding a modern and sophisticated touch to buildings and spaces. Stainless steel tube suppliers play a pivotal role in the construction and architectural industry by providing high-quality 321 stainless steel welded tubes.
FAQ
Chemical Composition: 321 stainless steel contains the element of titanium (Ti), while 304 stainless steel does not contain titanium. The addition of titanium makes 321 stainless steel have better resistance to high temperatures.
Heat Resistance: Due to the inclusion of titanium, 321 stainless steel welded tubes have better heat resistance in high temperature environments and can withstand higher temperatures, while 304 stainless steel welded tubes have relatively low heat resistance.
Corrosion Resistance: 321 stainless steel welded tube is stronger than 304 stainless steel welded tube in terms of corrosion resistance. 321 stainless steel welded tube has good corrosion resistance to organic acids and oxidizing media at high temperatures, while 304 stainless steel welded tube has poor corrosion resistance.
Physical Properties: Due to the addition of titanium elements, the hardness and strength of 321 stainless steel welded tube is slightly higher than 304 stainless steel welded tube.
Chemical Composition: 321 stainless steel contains the element of titanium (Ti), while 316 stainless steel contains the element of molybdenum (Mo). The addition of these elements makes the two stainless steels have different characteristics and ranges of application.
Heat Resistance: Due to the inclusion of titanium elements, 321 stainless steel welded tubes have better heat resistance in high temperature environments and can withstand higher temperatures. And 316 stainless steel welded pipe in high temperature performance is relatively weak.
Corrosion Resistance: 316 stainless steel welded tube is better than 321 stainless steel welded tube in terms of corrosion resistance. 316 stainless steel welded tube has better corrosion resistance in chloride environment and is suitable for seawater and corrosive media applications.
Physical Properties: The corrosion resistance and strength of 316 stainless steel welded pipe is relatively high due to the addition of molybdenum, while the corrosion resistance and strength of 321 stainless steel welded pipe is slightly inferior to 316 stainless steel.
The service life of 321 stainless steel welded tube depends on a variety of factors, including the use environment, operating conditions and proper maintenance. In general, 321 stainless steel welded tube has a long service life.
Due to the excellent high temperature resistance and corrosion resistance of 321 stainless steel welded pipe, its performance in high temperature and corrosive environments is relatively stable. When properly selected, installed and used, the life of 321 stainless steel welded pipe can reach decades or even longer.
However, it should be noted that the service life is also affected by other factors, such as the design quality of the pipe, the operating temperature and pressure, the nature of the chemical medium, and the mechanical stress of the pipe. In addition, regular maintenance and inspection are also important factors to ensure the life of stainless steel welded pipes.
Therefore, to ensure the best service life of 321 stainless steel welded pipes, it is recommended to follow the guidelines and industry standards of stainless steel tube suppliers and to perform proper maintenance and overhaul.
Cleaning: Clean the surface of the stainless steel welded pipe regularly to remove dirt and buildup. Mild cleaners, soapy water, or non-abrasive cleaners can be used, avoiding chlorinated or acidic cleaners.
Avoid Scratching: Avoid using hard and abrasive materials to scratch the surface of the stainless steel welded pipe to prevent scratches and damage.
Corrosion Prevention: Avoid prolonged exposure to environments containing salt, acidic or alkaline substances, which may have a corrosive effect on the stainless steel welded pipe. If exposed to these substances, they should be cleaned immediately and dried thoroughly.
Regular Inspection: Check the welded tube regularly for cracks, corrosion, or other damage. If problems are found, take prompt measures to repair or replace them.
Use Appropriate Sealing Materials: When connecting or installing stainless steel welded tubes, use appropriate sealing materials to ensure that the connection points are sealed and corrosion-resistant.
Avoid Excessive Temperatures: Avoid exposing stainless steel welded tubes to excessive temperatures to prevent the deformation or annealing of the material.
Avoid Excessive Pressure: Avoid exposing stainless steel welded pipe to pressures that exceed its capacity to prevent rupture or deformation of the pipe.
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