How far from Beijing to Chengde and Tianjin?

The distance from Peking to Chengde is around 230km and there is no bullet trains between the two cities. The best transportation is to take the bus from Liuliqiao Bus Station, which cost you about 5 hours.
To Tianjin, you can take the bullet trains at Beijing South Railway Station, which will take you about 40 minutes for the journey.
All the tickets can be bought at the spot and they are very easy to get, so do not worry about it.