1/2" 0.50" OD x .049" wall Steel Seamless Round Tube A179 SAE-T524
Has a yellow zinc chromate coating to prevent rust. Similar to what is used in heat exchangers.
CUT TO LENGTH - PRICED BY THE INCH - 9" minimum
Shipping in the USA:
Up to 9" - $8.00
Over 9" up to 15" - $15.00
Over 15" up to 24" - $20.00
Over 24" and International please ask.