Science: Steam-Cleaned Pipes

In the euphony of current advertisements, water pipe manufacturers have been trumpeting, bugling, tooting and piping the merits of various pipe materials. Brassmen have clarioned that brass pipes last a lifetime, do not rust. Ironmen have said the same for iron-pipes.

Meanwhile steel-pipe makers have been whistling through their fingers. Steel is iron mixed with and hardened by carbon. Because it is easier to produce steel than to rid iron of its impurities, steel is cheaper than pure iron. It is also cheaper than-iron or steel alloys, and than copper alloys. But it oxidizes...

Want the full story?

Subscribe Now


Get TIME the way you want it

  • One Week Digital Pass — $4.99
  • Monthly Pay-As-You-Go DIGITAL ACCESS$2.99
  • One Year ALL ACCESSJust $30!   Best Deal!
    Print Magazine + Digital Edition + Subscriber-only Content on

Learn more about the benefits of being a TIME subscriber

If you are already a subscriber sign up — registration is free!