What Is The Difference Between SA 210 GR A1 And SA 179?

What is the difference between SA 210 GR A1 and SA 179?
ASTM A 179 has more Sulphur and Phosphorus than ASTM A 210. That makes SA 210 costlier and cleaner. The higher Carbon in SA 210 gives it higher strength than SA 179. The requirements for the boiler cannot be met with SA 179, so SA 210 grade is used.
SA 210 GR A1 is an ASME standard internally threaded pipe for high-pressure boilers. It is mainly used in high-temperature and high-pressure boilers. It can withstand the harsh environment of high temperature and high pressure and ensure the safe operation of the boiler. It is usually used in boiler superheaters, reheaters, economizers and water walls.
SA 179 is the standard for seamless cold-drawn low carbon steel pipes in the American Boiler and Pressure Vessel Code. It stipulates the requirements for the manufacturing, inspection and acceptance of such steel pipes to ensure that the quality and performance of the steel pipes meet the specification requirements. SA 179 steel pipes are commonly used in components such as boilers, superheaters, reheaters, economizers, air preheaters, water pipes and flues.
Therefore, the main difference between SA 210 GR A1 and SA 179 lies in their purpose and scope of application. SA 210 GR A1 is more suitable for high temperature and high pressure boiler environments, while SA 179 is more widely used in various boilers and pressure vessels.