Yes, Chinas Hebei Black Granite can be used for exterior applications in hot climates. Granite is a naturally durable and hardy material, and can withstand extreme temperatures and weather conditions. However, it is important to ensure that the granite is of good quality and has been properly sealed to prevent any potential damage from moisture or prolonged exposure to sunlight. It is recommended to consult with a professional stonemason or architect to ensure the proper installation and maintenance of granite for exterior applications in hot climates.