Gas pipe and Gas main

Gas main and gas pipe are semantically related in gas line topic. In some cases you can use "Gas main" instead a noun phrase "Gas pipe", when it comes to topics like gas pipeline, natural gas pipeline.

Gas main noun - A main that distributes gas.

Gas pipe and gas main are semantically related in gas line topic. You can use "Gas pipe" instead a noun phrase "Gas main", if it concerns topics such as gas pipeline, natural gas pipeline.