Classic & Vintage - hi ten 1020 tubing?
Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.
11-27-07, 08:30 PM
anyone know the lowdown on high tensile 1020 tubing? just picked up a vintage panasaonic with this tubing but seems on the heavy side. how does this tubing add up to columbus sl or reynolds 531? thanks...
11-27-07, 08:33 PM
High tensile anything generally means ordinary grade carbon steel. Weaker then special alloys so more is added, thus heavier. On the bright side it should be easily weldable.
11-27-07, 08:52 PM
There is a considerable weight difference: for example I have a 53 cm lugged frame in Columbus SL that weighs in at 4 pounds bare frame with no fork, bottom bracket or headset. A 53 cm Hi ten lugged frame came in at 7 pounds 2 oz. Don
do you have a pic of the panasonic? I have one too
11-28-07, 06:33 AM
Channeling sydney: Gas pipe.
11-28-07, 06:48 AM
I like Sheldon Brown's glossary entry for high-tensile tubing: "A fancy-sounding name for the ordinary tubing used to build cheap bicycle frames."
11-28-07, 08:16 AM
Back in the day (70s, 80's) when "chromoly" tubing was "nice", steel frame material was identified by its properties (percentage of alloys in the steel).
normal steel: 1020
chromoly steel: 4130
Chrome Molybdenum (sp ?).
The numbers are like the Ti numbers (3-2.5 or 6-4) which also refer to alloying elements in the Ti (pure Ti is best for burning and making into white paint pigment, it's not very good for bike frames). I dunno what the steel numbers actually refer to.
11-28-07, 08:45 AM
Alloying of steels (http://www.materialsengineer.com/E-Alloying-Steels.htm).
Powered by vBulletin® Version 4.1.12 Copyright © 2013 vBulletin Solutions, Inc. All rights reserved.