Abstract
The current state of the steels of the main pipelines largely depends on the influence of the corrosive environment on the inner and outer surfaces of the pipes. The presence of hydrogen and subsequent hydrogen cracking and damage to the outer coating are factors that also depend on the environment and its impact on the base metal of the pipe. Increasingly, low-carbon high-strength steels of the new generation are used as main pipeline steels, which are manufactured according to modern technological processes and must ensure the continuous operation of pipelines at the appropriate operating parameters. The use of new generation steels for constructing new pipelines and repairing old ones poses certain risks due to insufficient research into the impact of the above-mentioned factors on the efficiency of Ukraine's gas transmission system. Variability of indicators and order of technological process, the chemical composition of steels, normative documents on service of pipelines - the factors capable of influencing the durability of system operation. A systematic approach in the study of operational, experimental, and analytical studies of steels of main oil and gas pipelines should be considered to create guidelines and standards. To protect metal pipes from corrosion and wear, it is promising to use different types of coatings