What is the difference between T4 and T6 heat treatment?

## What is the difference between T4 and T6 heat treatment?

1. **What is T4 heat treatment?**.

T4 heat treatment is a type of solution heat treatment that involves heating the material to a specific temperature for a set period of time, followed by quenching in water or other cooling medium. This process helps in achieving a balance between good formability and strength in the material.

2. **What is T6 heat treatment?**.

T6 heat treatment is a type of artificial aging process that follows the solution heat treatment. It involves heating the material to a specific temperature for a set period of time, followed by quenching and aging at an elevated temperature. This process helps in improving the material's mechanical properties, such as strength and hardness.

3. **Difference between T4 and T6 heat treatment**.

The main difference between T4 and T6 heat treatment lies in the aging process. T4 is a solution heat treatment that provides good formability and moderate strength, while T6 involves an additional aging process that significantly improves the material's strength and hardness. T6 treated materials are generally stronger and harder compared to T4 treated materials.

In summary, T4 heat treatment is a solution heat treatment that balances formability and strength, while T6 heat treatment involves an additional aging process to enhance the material's strength and hardness.

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