ASTM A179 / ASME SA179 standard covers minimum-wall thickness, seamless cold-drawn low-carbon steel tubes for tubular heat-exchangers, condensers, and similar heat transfer apparatus. ASTM A179 / ASME SA179 standard requires that the tubes be heat treated after the final cold drawn pass at a temperature of 1200°F [650°C] or higher.
ASTM A179 Seamless Tube Manufacturers, Heat Exchanger ASTM A179 low-carbon steel tubes shall be made by the seamless process and shall be cold drawn. Heat treatment is carried out separately and in addition to hot forming. Heat and product analysis shall be performed wherein steel materials shall conform to required chemical compositions of carbon, manganese, phosphorus, and sulfur.