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The ASTM A213 specification is highly regarded in the industry for seamless ferritic and austenitic alloy steel boilers, superheaters, and heat exchanger tubes. One of the well-manufactured stainless steel tubes under this specification is the ASTM A213 SS 347 tube. This tube possesses exceptional corrosion resistance and high-temperature strength - making it ideal for high-temperature applications. The SS 347 tube is composed of stabilized austenitic stainless steel alloy, containing niobium and tantalum as its alloying elements. Additionally, it also has good oxidation and carburization resistance thanks to the chromium and nickel components. This stainless steel tube is widely used in a variety of industries including chemical processing, petroleum refining, and energy power generation. Overall, the ASTM A213 SS 347 tube is a reliable and efficient choice for high-performance applications.
1. High corrosion resistance: ASTM A213 TP347 stainless steel seamless tubes are highly resistant to corrosion caused by various chemical environments, including acidic, alkaline, and chloride-rich environments. This makes them suitable for use in industries such as petrochemical, chemical, and food processing.
2. High temperature resistance: These seamless tubes are designed to withstand high temperatures without losing their structural integrity. They can resist oxidation and scaling at elevated temperatures, making them ideal for applications that involve high heat, such as furnace parts and heat exchangers.
3. Durability: ASTM A213 TP347 stainless steel seamless tubes are manufactured using a combination of chromium, nickel, and other alloys, which enhance their mechanical properties, including strength and toughness. This makes them highly durable and long-lasting, even in harsh operating conditions.
4. Easy fabrication and installation: The seamless nature of these tubes eliminates the need for welding, reducing the risk of corrosion and adding to their overall strength. They can be easily fabricated and installed, saving time and labor costs during installation.
5. Versatility: ASTM A213 TP347 stainless steel seamless tubes can be used in a wide range of applications due to their excellent combination of properties. They are employed in industries such as oil and gas, pharmaceuticals, power generation, and pulp and paper, among others.
6. Low maintenance requirements: These seamless tubes require minimal maintenance and upkeep, reducing overall operational costs. They do not require frequent cleaning or coating applications to maintain their corrosion resistance properties, contributing to cost savings.
In summary, ASTM A213 TP347 stainless steel seamless tubes offer high corrosion and temperature resistance, durability, ease of fabrication and installation, versatility, and low maintenance requirements. These advantages make them a preferred choice for various industrial applications.
- ASTM A213 TP347 stainless steel seamless tube has numerous benefits to offer. Its high temperature and corrosion resistance properties make it a popular choice in various industries. The excellent mechanical properties of this grade of stainless steel make it highly durable and long-lasting.
Furthermore, this seamless tube is free from weld defects and impurities, making it suitable for use in high-pressure and high-temperature environments. Its smooth surface finish ensures optimal flow and reduces the risk of contamination.
Other advantages of ASTM A213 TP347 stainless steel seamless tube include its easy maintenance and low lifetime costs. It is also easily machinable, allowing for a wide range of applications.
Overall, the benefits of this seamless tube make it a wise choice for many industrial applications where performance and durability are crucial. - TP304 is outperformed by the material in terms of its creep stress and rupture properties.
- Perfect for use in environments with high temperatures ranging from 800 to 1500°F (427 to 816°C). A suitable solution for industrial applications that require heat resistance.
- Sensitization is a phenomenon that occurs in certain types of alloys, where the material becomes more susceptible to intergranular corrosion. However, some alloys exhibit resistance to both sensitization and intergranular corrosion.
It is important to understand the concept of sensitization in order to appreciate the significance of resistance to this phenomenon. Sensitization occurs when certain alloying elements, such as chromium and carbon, precipitate at grain boundaries. This depletion of chromium in the grain boundaries makes the alloy more susceptible to intergranular corrosion.
Intergranular corrosion is a type of corrosion that occurs preferentially along grain boundaries. It can lead to significant damage and failure of the material. Alloys that are prone to sensitization are more susceptible to intergranular corrosion.
On the other hand, alloys that exhibit resistance to sensitization and intergranular corrosion have a lower concentration of alloying elements at grain boundaries. This results in a more homogeneous distribution of alloying elements throughout the material, making it less susceptible to intergranular corrosion.
Resistance to sensitization and intergranular corrosion can be achieved through various methods, such as alloying with elements that stabilize the grain boundaries and reduce the precipitation of sensitizing elements. Heat treatment processes can also be employed to promote the formation of a protective oxide layer on the grain boundaries, which enhances resistance to intergranular corrosion.
To summarize, resistance to sensitization and intergranular corrosion is a desirable characteristic in certain alloys. It can be achieved through proper alloy composition and heat treatment processes, resulting in a more reliable and durable material. - Boiler and pressure vessel codes have provisions for high-temperature applications. In such cases, specific guidelines and regulations are imposed to ensure safe operation and prevent any potential hazards. To meet these requirements, materials with high-temperature resistance, like alloy steels, are commonly used. These materials can withstand the extreme conditions and maintain their structural integrity.
One important aspect of high-temperature applications is the consideration of thermal stress. At elevated temperatures, materials expand, which can lead to thermal stress and potentially cause deformation or failure. Therefore, it is crucial to calculate and design for such thermal stresses to prevent any adverse effects.
Additionally, high-temperature applications often require appropriate insulation to minimize heat loss and improve energy efficiency. Insulation materials such as refractory bricks or ceramic fibers are commonly used to create a barrier between the hot internal environment and the surroundings.
Another crucial factor in high-temperature applications is the selection of suitable control systems. These systems monitor and regulate various parameters such as temperature, pressure, and flow rate to ensure safe and efficient operation. Advanced technologies like automated control systems and temperature sensors play a vital role in maintaining the desired operating conditions and preventing any overheating issues.
Regular maintenance and inspections are also necessary in high-temperature applications. Boiler and pressure vessel codes often prescribe inspection intervals and procedures to identify any signs of degradation or potential failures. This proactive approach helps to address any issues before they escalate and ensures the continued safe operation of the equipment.
In conclusion, boiler and pressure vessel codes have specific provisions for high-temperature applications. By selecting appropriate materials, considering thermal stresses, utilizing adequate insulation, implementing suitable control systems, and conducting regular maintenance and inspections, these codes ensure the safe and reliable operation of equipment in high-temperature environments. - Greater stability is achieved by incorporating niobium and tantalum into the composition.
- Excellent mechanical properties
- High carbon version available (TP347H)

TP347 Stainless Steel Tube Specifications
| Specifications | ASTM A213, ASME SA213 |
| Dimensions | ASTM, ASME, and API |
| Schedule | :SCH10、SCH20、SCH30、SCH40、STD、SCH60、XS、SCH80、SCH120、SCH140、SCH160、XXS。。SCH,STD,XS,XXS。,。,。。 |
| Wall Thickness | Schedule 5S - Schedule XXS |
| Size | 1/8" NB - 24" NB |
| Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| Length | Single Random, Double Random & Cut Length |
| Form | Round, Square, Rectangular, Hydraulic, etc |
| End | Plain End, Beveled End, Treaded |
| Test Certificate |
|
Performance of TP347 Stainless Steel Tube
- High-temperature corrosion resistance: UNS S34700 tube has excellent high-temperature corrosion resistance. It can be used for a long time in a high-temperature environment without oxidation, corrosion, or deformation.
- Corrosion resistance: aisi 347 stainless steel tube has good corrosion resistance in acidic and alkaline environments. It is resistant to common corrosive media such as sulfuric acid, hydrochloric acid, and alkaline solutions.
- Excellent mechanical properties: TP347 stainless steel tube has good mechanical properties, including high strength and excellent ductility. This enables the tube to withstand greater stress and pressure in high-temperature environments without being prone to deformation or fracture.
- Stable grain structure: TP347 stainless steel can maintain a relatively stable grain structure under high-temperature conditions by adding stabilizing alloying elements (such as niobium and tantalum). This helps to improve the corrosion resistance and high-temperature strength of the tube and mitigates grain growth and stress buildup during heat treatment.
General Steps for ASTM A213 SS 347 Tube
- Raw material selection: Select high-quality stainless steel blanks as raw materials to ensure that the chemical composition of the material meets the requirements of the ASTM A213 TP347 specification.
- Heat Treatment: During the manufacturing process, stainless steel tubes are heat treated, usually solution annealed, to relieve stress and improve the grain structure of the material. This step can enhance the corrosion resistance and mechanical properties of the tube.
- Hot rolling or cold rolling: According to the needs, the heated raw material billet is rolled into the required shape and size of the tube through the hot rolling or cold rolling process.
- High-temperature annealing: In order to further eliminate residual stress and improve the stability of the grain structure of the tube, high-temperature annealing is usually performed.
- Pickling and Cleaning: During the manufacturing process, the tubes are pickled and washed to remove surface oxides, contaminants, and other impurities, ensuring the surface finish and purity of the tubes.
SS 347 Tube Heat Treatment
|
Grade |
UNS |
Heat Treat Type |
Austenitizing / Solutioning Temperature, min or range °F [°C] |
Cooling Media |
ASTM Grain Size No. B |
|
TP321 |
S32100 |
Solution treatment |
1900 °F [1040 °C] |
water or another rapid cool |
. . . |
DIN 1.4550 Stainless Steel Tube Mechanical Properties
| Grade | Tensile Strength (MPa) | Yield Strength (0.2%Offset) (MPa) | Elongation % min. | Brinell HARDNESS (HBW) | Rockwell HARDNESS | Vickers Hardness (HV) | Heat Treating Temperature, min or range (°C) |
| SS 347 | 515 min. | 205 min. | 35 | 192 max | HRB- 90 max. | 200 max | 1040 |
ASME SA213 Stainless Steel 347 Tube Size
| GAUGE | THICKNESS RANGE (INCH) | TYPICAL VALUE (INCH) |
| 22 | 0.025 - 0.029 | 0.028 |
| 20 | 0.031 - 0.035 | 0.035 |
| 19 | 0.038 - 0.042 | 0.042 |
| 18 | 0.044 - 0.049 | 0.049 |
| 17 | 0.053 - 0.058 | 0.058 |
| 16 | 0.060 - 0.065 | 0.065 |
| 15 | 0.066 - 0.074 | 0.072 |
| 14 | 0.075 - 0.085 | 0.083 |
| 13 | 0.087 - 0.097 | 0.095 |
| 12 | 0.101 - 0.111 | 0.109 |
| 11 | 0.112 - 0.122 | 0.12 |
| 10 | 0.126 - 0.136 | 0.134 |
| 9 | 0.140 - 0.150 | 0.148 |
| 8 | 0.157 - 0.167 | 0.165 |
| 7 | 0.175 - 0.185 | 0.18 |
347 stainless Steel Tube Suppliers
Our company is professional 347 seamless stainless steel tubing manufacturers, our company is professional 347 seamless stainless steel tubing manufacturers, we provide ss 347 round tubes, stainless steel 347H polished tubes, TP347H stainless steel high-pressure tubing, and so on. these tubes are popular all over the world. Our ASTM A213 SS 347 tube is available in various sizes, dimensions, and wall thicknesses to meet different application requirements, we manufacture Stainless Steel 347H tubes according to the requirements of our customers. We follow the international quality standard ASTM A213 and ASME SA213 to manufacture our high-quality, affordable 347 seamless stainless tubes, welcome to visit us.
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