ASTM A249 TP321, 1.4541, UNS S32100 Stainless Steel Welded Tube For Heat Exchanger
ASTM A249 TP321 is a standard specification for welded austenitic stainless steel tubes for high-temperature service. These tubes are commonly used in heat exchangers, boilers, and other high-temperature applications. The TP321 grade of stainless steel is a stabilized austenitic stainless steel with titanium added to prevent carbide precipitation during welding. This grade offers excellent corrosion resistance and high strength at elevated temperatures. The welded tubes manufactured to ASTM A249 TP321 specification are typically used in applications where high temperature and corrosive conditions are present. These tubes are available in various sizes and thicknesses to suit different applications. ASTM A249 TP321 stainless steel welded tubes offer excellent performance in high-temperature environments and are widely used in a variety of industrial applications.
Characteristics:
1. Grade: ASTM A249 TP321 stainless steel welded tubes are made from grade 321 stainless steel, which is a stabilized austenitic stainless steel with titanium addition.
2. Corrosion resistance: These tubes offer excellent corrosion resistance in a wide range of corrosive environments, including acidic, alkaline, and chloride-rich environments.
3. High temperature resistance: ASTM A249 TP321 stainless steel welded tubes can withstand high temperatures up to 900°C without losing their mechanical properties.
4. Weldability: These tubes can be easily welded using standard welding techniques, making them suitable for a variety of fabrication processes.
5. Durability: ASTM A249 TP321 stainless steel welded tubes have high strength and durability, making them ideal for use in demanding applications such as chemical processing, oil and gas, and power generation.
6. Dimensional accuracy: These tubes are manufactured to precise dimensional tolerances, ensuring a tight fit and leak-proof performance in various applications.
7. Surface finish: ASTM A249 TP321 stainless steel welded tubes are available in a variety of surface finishes, including polished, brushed, and satin finishes, to meet specific application requirements.
8. Compliance: These tubes are manufactured in compliance with ASTM A249 specifications, ensuring quality and consistency in their performance.
Equivalent Material:
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS |
| BS | En | No | Name |
| SS321 | S32100 | 321S31 | 58B, 58C | 1.4541 | X6CrNiTi18-10 | 2337 | SUS 321 |
Chemical Composition:
| C | SI | MN | P | S | CR | NI | TI | N |
| 0.08 | 1.00 | 2.00 | 0.045 | 0.030 | 17.0/19.0 | 9.0/12.0 | 5 X C Min – 0.70 Max | 0.10 |
Mechanical Properties:
| Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness |
| Rockwell B (HR B) max | Brinell (HB) max |
| 515 | 205 | 40 | 95 | 217 |
Applications:
1. Heat exchangers: ASTM A249 TP321 stainless steel tubes are usually used in heat exchangers because of their excellent corrosion resistance, high temperature resistance, and good durability. They are suitable for both high and low temperature applications.
2. Boiler tubes: These stainless steel tubes are used in boilers for their high temperature resistance and strength. They are able to withstand high pressure and temperature conditions, making them suitable for use in boilers.
3. Chemical processing: ASTM A249 TP321 stainless steel tubes are commonly used in chemical processing plants for their resistance to corrosion from harsh chemicals. They are also able to withstand high temperatures and pressure, making them ideal for use in chemical processing applications.
4. Oil and gas industry: These stainless steel tubes are used in the oil and gas industry for their resistance to corrosion from harsh environments. They are often used in pipelines, refineries, and offshore drilling platforms.
5. Food and beverage industry: ASTM A249 TP321 stainless steel tubes are also used in the food and beverage industry for their hygienic properties. They are resistant to corrosion and are easy to clean, making them ideal for use in food processing equipment.
6. Pharmaceutical industry: These stainless steel tubes are used in the pharmaceutical industry for their hygienic properties and resistance to corrosion. They are used in the production of pharmaceutical products and in the manufacturing of equipment used in pharmaceutical plants.
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ASTM A249 TP321, 1.4541, UNS S32100 Stainless Steel Welded Tube For Heat Exchanger Images
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