The phrase "steam pipe" refers to a pipe that carries hot, pressurized steam in buildings or power plants for various purposes like heating or generating electricity. Full definition
You can now use different pieces of the environment to take enemies down such as steam pipes, large light fixtures, etc.. (gamingtrend.com)
If everything's painted white, then that odd steam pipe almost magically disappears. (countryliving.com)
They cut through their cell wall, maneuvered through a maze of catwalks, cut and crawled through steam pipes to emerge from a manhole in the village of Dannemora. (wamc.org)