Yes, “gas pipe” usually refers to high tensile steel. But “looks” can be deceiving. Just looking at a bicycle won’t tell you what tubing was used to build it. If you pay attention to detail, you can usually see differences that show the bike isn’t made from “gas pipe”. The first clue on this one is the two-tone paint. The second clue is the higher quality Mafac brakes. Third clue is the aluminum cottered crank. Forth clue is what appears to be Mafac brake levers and the lack of suicide levers. This bike may not be the highest quality bike but it’s not “a gas pipe” bike.