Evaluation Technology of Corrosion for Safe Use of Gas

Overview

To supply gas safely and to enable customers to use it at ease, we evaluate the corrosion protection condition of steel gas pipelines and the risk of corrosion of metal materials used in gas appliances.

Evaluation of Corrosion Protection for Buried Steel Gas Pipelines

Cathodic protection is generally being applied to buried steel pipelines with coatings. To further improve the anti-corrosion maintenance and management of buried steel gas pipelines, Osaka Gas is working on evaluating the corrosion protection conditions by the experiments using a unique test apparatus that we developed. This test apparatus can simulate the actual buried environment.

Evaluation of Corrosion Risk for Copper Pipes Used for Hot Water in Gas Appliances

Copper pipes are used for hot water piping of gas appliances. Copper pipes have good corrosion resistance; however, it can corrode depending on the usage environment. Osaka Gas is conducting research to clarify the corrosion risk for copper pipes and prevent problems caused by corrosion of them in gas appliances.