ASTM A249 TP304 Stainless Steel Bright Annealed Heat Exchanger Tube

​​ASTM A249 is a standard specification for welded austenitic stainless steel pipes, suitable for applications such as boilers, superheaters, heat exchangers, and condensers.​​

​​GNEE is a professional supplier of stainless steel welded pipes, providing high-quality ASTM A249 TP304 stainless steel welded pipes. Our products are exported to over 60 countries annually and have received widespread acclaim. The ASTM A249 TP304 stainless steel pipes (bright annealed) supplied by GNEE are processed using a bright annealing technique (surface polishing after controlled-atmosphere annealing) to achieve an ultra-smooth surface (Ra ≤ 0.4 μm). The pipes feature a bright, reflective appearance that is both aesthetically pleasing and easy to clean.​​

​​The standard outer diameter range for ASTM A249 TP304 bright annealed heat exchange pipes is 6.0–114.3 mm, with a wall thickness of 0.5–3.0 mm. The outer diameter tolerance is ±0.10 mm, and the wall thickness tolerance is ±10%. These pipes also offer short-term oxidation resistance up to 870°C and continuous operating performance up to 425°C, making them an ideal choice for high-performance heat exchanger applications.​