ASTM A269 TP201 Tubes is an extremely popular material mainly because it is corrosion resistant and has a high strength to density ratio. Choosing the right tempering temperature is extremely important to achieve the desired hardness and strength. When this ASME SA 269 TP201 Tubing is treated at high temperature and then cooled very slowly to room temperature to achieve its high ductility and strength but low hardness, the annealing process is applied. In other words, annealing is done by heating a component to the right temperature before immersing it in room temperature. The furnace is then turned off while the piece of steel is inside.
We as Siddhgiri Tubes is a recognized seller of ASTM A269 TP201 Seamless Tubes, where its resistance to friction and use is similar to that of forged steels of the same composition. In order for the core to completely transform into austenite, the heating time must be increased. In case you are wondering, the microstructure of the hardened steel part is martensite, ferrite or cementite. If this SA 269 Grade TP201 Polish Tubing was quenched and hardened for a period of time before heating, the process would quench. The temperature at which this process is carried out is a critical factor that determines the hardness and toughness achieved. For example, high temperatures produce high ductility, but little hardness and durability. Conversely, low temperatures lead to low ductility but high hardness and strength.
