Tinplate type TH (Tinplate Hard) refers to a tinplate material with a hard temper. However, there is no specific annealing value associated with the term “TH”. The annealing of tinplate may vary depending on the manufacturer and the specific needs of the application.
In general, the annealing of tinplate is classified into different levels of tempering, such as T1, T2, T3, T4, etc. Each hardening level has a range of hardness and specific characteristics that make it suitable for different applications. To know the exact annealing of tinplate type TH, it would be necessary to consult with the manufacturer or supplier of the material.