ASTM A268 TP405 TP409 TP410 TP430 TP439 TP444 TP446 TP441 Stainless Steel U Bend Tube
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Looking for high-quality stainless steel U-bends for your heat exchanger applications? Our ASTM A268 stainless steel U-bends, available in grades TP405, TP409, TP410, TP430, TP439, TP444, TP446, and TP441, offer excellent corrosion resistance, high-temperature strength, and durability, making them ideal for industries such as petrochemical, power generation, and heat exchange systems.
ASTM A268 TP405, TP409, TP410, TP430, TP439, TP444, TP446, and TP441 stainless steel U-bends are ferritic stainless steel tubes designed for high-temperature and general corrosion resistance. These "straight chromium" stainless steel grades are ferromagnetic and can be used in heat exchangers, condensers, and other industrial processes requiring strength and corrosion resistance. Different grades offer varying properties depending on the application.
ASTM A268 Stainless Steel Heat Exchanger U Tubing Specification
| Seamless Stainless Steel Heat Exchanger Tube Standard | ASTM A213/ ASME SA 213, ASTM A269 / ASME SA 269, ASTM A789/ ASME SA 789 / ASTM A268/ ASME SA 268 |
| Welded Stainless Steel Heat Exchanger Tube Standard | ASTM A249/ ASME SA 249, ASTM A269/ ASME SA 269, ASTM A789/ ASME SA 789 |
| Stainless Steel Heat Exchanger Tubes grades | TP304 / 304L, TP316, TP316L, TP 309S, TP310S, TP321, TP321H, TP347, TP347 H, Duplex 2205 / S31803 |
| Delivery Condition | Annealed and Pickled (AP), Polished, Bright Annealed (BA), Cold Drawn, MF |
| Size Range | 6.53 to127 mm |
| Length | up to 20 m (65.62 ft) or Custom as required |
| Stainless Steel Heat Exchanger Tubes Bending radii | 1.25 x OD up to 1700mm |
| Wall Thickness Range | 0.5 - 5 mm |
| Tolerance | +/-0.05 Mm |
| Value Added Services for Stainless Steel Heat Exchanger Tubes |
Cutting Beveling Threading Polishing (Electro & Commercial) Draw & Expansion as per required Size & Length Destructive and Non Destructive Ultrasonic Testing Annealed & Pickled Bending |
| END | Plain End, Beveled End, Treaded |
| Processing Service | Bending, Welding, Decoiling, Punching, Cutting, Moulding |
| Technique | Cold drawn, Cold rolled, Hot rolled, Extrusion Tube manufacturer in India |
| Uses & Application |
Heat Exchanger Boiler Condenser Cooling, Heating Air-conditioning industry Coolers Solar industry Water heater industry |
Chemical Composition:
| Grade | C (%) | Mn (%) | Si (%) | P (%) | S (%) | Cr (%) | Ni (%) | Mo (%) | Other Elements |
|---|---|---|---|---|---|---|---|---|---|
| TP405 | 0.08 | 1.00 | 1.00 | 0.04 | 0.02 | 11.5–13.5 | 0.50 | 0.50 | - |
| TP409 | 0.08 | 1.00 | 1.00 | 0.04 | 0.02 | 10.5–11.5 | 0.50 | 0.50 | - |
| TP410 | 0.15 | 1.00 | 1.00 | 0.04 | 0.02 | 11.5–13.5 | 0.50 | - | - |
| TP430 | 0.12 | 1.00 | 1.00 | 0.04 | 0.02 | 16.0–18.0 | 0.50 | - | - |
| TP439 | 0.08 | 1.00 | 1.00 | 0.04 | 0.02 | 17.0–19.0 | 0.50 | - | - |
| TP444 | 0.05 | 1.00 | 1.00 | 0.04 | 0.02 | 18.0–20.0 | 1.00 | - | - |
| TP446 | 0.05 | 1.00 | 1.00 | 0.04 | 0.02 | 23.0–25.0 | - | - | - |
| TP441 | 0.05 | 1.00 | 1.00 | 0.04 | 0.02 | 17.0–19.0 | - | - | - |
Mechanical Properties:
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|
| TP405 | 515 | 205 | 20 |
| TP409 | 485 | 205 | 22 |
| TP410 | 515 | 205 | 20 |
| TP430 | 485 | 205 | 25 |
| TP439 | 515 | 205 | 25 |
| TP444 | 530 | 220 | 22 |
| TP446 | 550 | 240 | 20 |
| TP441 | 515 | 205 | 25 |
Founded in 2008, GNEE is a stainless steel tube manufacturer in China. We supply seamless ferritic and austenitic alloy steel boiler, superheater, and heat exchanger tubes conforming to ASTM A268 for a variety of applications. Our TP405, TP409, TP410, TP430, TP439, TP444, TP446, and TP441 seamless tubes are manufactured from stainless steel billets through cold drawing, cold rolling, and heat treatment to meet specific specifications. For specialized applications, we also offer U-bends and bright annealed finished tubes upon request.
| SS Heat Exchanger Tubes Test Certificate |
DFARS compliant EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC) 100% Radiography Test Report Raw Materials Certificate Third Party Inspection Report Fumigation Certificates Heat Treatment Charts HS Code Commercial Invoice Form A for Generalized System of Preferences (GSP) Manufacturer Test Certificate Moisture testing Surface roughness measurement Laboratory Test Certificate from Govt. Approved Lab |
Packaging:
Packed in PE Fabric Bundles or ply wooden box wrapped in plastic or Standard seaworthy export packing or as per customers' request
