| Type: | Welded Tube | Application: | Heat Exchanger/ Condencer |
|---|---|---|---|
| NDT: | ET/HT/UT | Surface: | Bright Annealed/ Pickled Annealed |
| High Light: | Condenser Bright Annealed Tube， TP321 Welded Tube， Bright Annealed Surface Welded Tube | ||
ASTM A249/ASME SA249 TP321 Welded Tube Bright Annealed Surface for Condencer
Overview
The A249 TP321 tube is a specific type of stainless steel tube that is commonly used in various industries， including petrochemical， pharmaceutical， food processing， and power generation. It is known for its excellent corrosion resistance， high strength， and durability.
The "A249" designation refers to the ASTM A249 specification， which sets the standard for welded austenitic steel boiler， superheater， heat-exchanger， and condenser tubes. This specification specifically covers tubes made from stainless steel and alloy steel materials.
The "TP321" designation refers to the specific grade of stainless steel used in the tube. TP321 is a titanium-stabilized austenitic stainless steel that contains 18% chromium and 8% nickel. It also includes small amounts of titanium and niobium， which improve its resistance to intergranular corrosion and high-temperature strength.
The A249 TP321 tube is typically produced through a welding process， such as TIG (Tungsten Inert Gas) or laser welding， which ensures a strong and solid joint. These tubes are available in various sizes and wall thicknesses to suit different application requirements.
Equivalent Material:
| AISI/ SUS | UNS | WNR. / DIN | EN | JIS | GB |
|---|---|---|---|---|---|
| 321 | 32100 | 1.4541 | X6CrNiTi18-10 | SUS321 | 0Cr18Ni10Ti |
Chemical Composition:
| SA 249 | C | SI | MN | P | S | CR | NI | TI | N |
|---|---|---|---|---|---|---|---|---|---|
| TP321 | 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 |
Features
1. Corrosion resistance: The high chromium and nickel content in TP321 stainless steel provide excellent resistance to corrosion， making it suitable for applications in harsh environments.
2. High-temperature strength: The titanium and niobium additions in TP321 stainless steel enhance its high-temperature strength， allowing the tube to withstand elevated temperatures without deformation or failure.
3. Formability and weldability: TP321 stainless steel has good formability， enabling it to be easily shaped and fabricated. It also has excellent weldability， allowing for easy joining with other components or tubes.
4. Longevity and durability: The A249 TP321 tube is known for its long-lasting performance and durability， even in demanding industrial environments.
Application
Heat exchanger
Condencer
Food Industry
Oil and Gas
Sugar
Power Plant
…
