Standard: ASTM A179/A179M 1. Seamless Boiler Tubes 2. Seamless Heat Exchanger Tubes 3. Seamless Condenser Tubes Standard: ASTM A179/A179MScope: Seamlss cold-drawn low carbon steel tubes for tubular heat exchangers, condensers, and similar heat exchanger apparatus.Size Range: Covers tube 1/8 to 3 in.[3.2 to 76.2mm], inclusive, in outside diameter.Chemical Composition& Mechanical Properties ...