Fellow forum members, is there a rough rule of thumb one can use for working out an equivalent size of ali tube to use in place of steel for lighter weight? I'm making up some one-off cleaning tools at work and they need 3 metre handles, and even using fairly thin-wall tube (I decided on 1.22mm wall x 34.93mm dia so it doesn't flex too much) means the handle will weigh nearly 3 kg, and this has been suggested as being too heavy, so I thought an ali handle screwed to a steel head would do the trick, but I didn't want to get ali that was too thin and potentially bendy/flexy.
If there is such a thing as a rough rule, please can you let me know
If there is such a thing as a rough rule, please can you let me know