A179 tube, designed for use in the hottest parts of heat exchangers, condensers, and similar thermal transfer equipment. It is mainly used as the thinnest-walled seamless steel tube in heat transfer equipment such as heat exchangers and condensers. The high temperature resistance of A179 tubes is mainly shown in the ability to withstand the use of not less than 3.2 to 76.2 mm tube diameter in high temperature environments, and its material chemical composition and heat treatment specifications make it suitable for high temperature conditions.
According to the ASTM A179 standard, the heat treatment of A179 tubes is carried out at a temperature of not less than 650°C after the last cold drawing. In addition, the tube's hardness test indicates an HRB ≤ 72, which further confirms its ability to maintain adequate mechanical properties at high temperatures.
Overall, A179 tube has good high temperature resistance and is suitable for heat exchanger and condenser applications in high temperature environments and high loads. In practical applications, its high temperature resistance has been verified to meet the requirements of heat transfer devices.
