Technical Description and Scope of ASTM/ASME A/SA 803 Standard
The ASTM/ASME A/SA 803 specification regulates the production and technical performance of seamless and welded ferritic stainless steel tubing. This product, supplied by EV Group China, is optimized for use in heat exchange equipment, superheaters, and water treatment systems. The standard covers requirements for the manufacture of straight and U-bend tubes designed for operation under high thermal loads.
The geometric parameters of the tubes regulated by this standard vary within an outside diameter range of 15.9 to 25.4 mm (5/8 – 1 inch). The minimum or average wall thickness starts from 0.7 mm (0.028 inches). EV Group China ensures strict compliance of products with these dimensional characteristics.
The standard presents requirements in both SI and inch-pound units. These systems are independent and are not intended for direct conversion, as their parameters are not always exact equivalents. The engineering staff at EV Group China recommends using one system of measurement for calculations to avoid deviations from ASTM/ASME regulatory requirements.