ASTM A249 TP321 Bright Annealed Welded Tube for Boiler
ASTM A249 specification covers nominal-wall welded and heavy-duty cold-finished pipe made of austenitic steel. ASTM A249 TP321 is the standard specification for welded austenitic stainless steel pipe for high-temperature service, typically used in heat exchangers, boilers, and other high-temperature applications.
GNEE supplies ASTM A249 TP321 stainless steel welded pipe made from grade 321 stainless steel, a titanium-stabilized austenitic stainless steel. Manufactured using TIG/MIG welding processes in accordance with ASME standards, it is available in sizes from 6 to 1626 mm (OD) and wall thicknesses from 0.5 to 60 mm (W).
ASTM A249 TP321 stainless steel bright annealed pipe offers excellent corrosion resistance in a wide range of corrosive environments and can withstand temperatures up to 900°C (1652°F) without loss of mechanical properties. Welded pipe produced to ASTM A249 specifications is typically used in high-temperature and corrosive environments, making it ideal for demanding applications such as chemical processing, oil and gas, and power generation.
In addition, we offer a variety of surface finishes, including polished, brushed, and satin, to meet specific application needs.
ASTM A249 TP321 Stainless Steel Welded Heat Exchanger Tube Specification:
| Standards | Welded Tube |
| ASTM | A 249 |
| ASME | SA 249 |
| Product Name | ASTM A249 TP 321 Stainless Steel Welded Tubes |
| Range | 6NB to 1200NB - SCH. 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160, XXS. |
| In Form of | Round, Square, Rectangle, Oval, Coil, Flexible Pipe, Shaft, 'U' Shape, Hydraulic pipe, Honed Tubes |
| In Length of | Standard & Cut length |
| Special Pipes | Fabricated Pipe (with radiography) |
| Value Added Service | Draw & Expansion as per required Size & Length Polish (Electro & Commercial) Heat Treatment Bending Annealed & Pickled Sand Blasting Machining Etc. |
| TEST CERTIFICATES | MTC, IBR & Third Party Inspection Manufacturer Test Certificate Laboratory Test Certificate from Govt. Approved Lab. Under Third Party Inspection |
| Specialize | Fabricated Pipe Square & Rectangle & Other Odd Size |
| Specification: | ASTM A 269/A 213/ASME SA 213 / EN 10216-5/EN 10305 / NACE MR0175/PED 97/23 EC |
| Maximum service temperature: | 650°C / 1205°F |
Chemical details
| Technical composition (%) | Fe | Cr | Ni | Mn | Si | P | C | S | Ti | |
| 321 | min | Bal. | 17 | 9 | - | - | - | - | - | - |
| max | - | 20 | 13 | 2 | 0.75 | 0.03 | 0.08 | 0.04 | 0.04 |
Mechanical properties
| Tensile Strength, Mpa | Yield Strength, Mpa | Elongation, % | Hardness, HRB |
| 515 min | 205 min | 35 min | 90 max |
ASTM A249 TP321 Stainless Steel Welded Tube Application
Boiler and Pressure Vessel Industry: Used in the manufacture of boiler superheaters, reheaters, economizers, and evaporator tubes; heat exchange tube bundles in various pressure vessels.
Petrochemical Industry: Heat exchangers, condensers, and piping systems in refineries; process piping used to handle corrosive media.
Food and Pharmaceutical Industry: Pipelines and heat exchange equipment requiring extremely high cleanliness requirements.
Thermal and Nuclear Power Industry: High-pressure feedwater heaters and condensers in power plants.
GNEE specializes in the production of high-quality stainless steel welded pipes, offering 304, 321, and 316L grades. We offer a comprehensive range of specifications, covering both large and small diameters. Our welded steel pipes are made from high-quality materials and undergo rigorous manufacturing processes, ensuring consistent and reliable quality. Please contact us for a quote!Email: sales@gneestainless.com
| Value Added Services |
Cutting Beveling Threading Polishing (Electro & Commercial) Draw & Expansion as per required Size & Length Destructive and Non Destructive Ultrasonic Testing Annealed & Pickled Bending |
| Processing Service | Bending, Welding, Decoiling, Punching, Cutting, Moulding |
| Technique | ASTM A249 321 SS Cold drawn, Cold rolled, Hot rolled, Extrusion Tube |
Packaging and Delivery
Packaging: We use moisture-proof and shock-resistant packaging, and use wooden pallets or plastic wrap for safe transportation.
Delivery Time: Standard delivery time for in-stock products is 7-15 days; custom orders are 20-30 days.
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