... A249 Stainless Steel Pipes, Tubes and Tubings are designed for Boiler and any other Pressure and Heat Pipes. ASTM A249 is ... for such use as boiler, superheater, heat exchanger, or condenser tubes.According to ASTM A249, subsequent to welding and ... Decoration, Heat-Exchanger, Condenser Tubes, Sanitation, food industry , Petroleum and Gas Industry and Liquird Delivery.6) Surface: 180#, 400#, 600# , 800 ...