Under normal conditions, the service life of channel steel can range from 15 - 50 years. If it is properly maintained and has appropriate surface treatment, such as hot - dip galvanizing, it can last longer. In a relatively dry and non - corrosive environment, channel steel without significant mechanical damage can maintain its performance for a long time. However, in harsh environments with high humidity, Kowozyon chimik, oswa souvan enpak mekanik, lavi sèvis li yo pral vin pi kout . enspeksyon regilye ak antretyen ka ede pwolonje lavi sèvis li yo .