Thanks for that Dave and Michael. From someone who aspires to build their own bikes in the future using much the same techniques, I appreciate all the commentary available!
I know very little about metal properties and what is most appropriate for use in bikes. I did an internet search for T45 to try educate myself and found this:
http://www.aircraftmaterials.com/data/alstst/T45.htmlBS T45 is a carbon-manganese steel tube supplied in the hardened and tempered condition. It finds many different applications in both the motorsport and aerospace industries due to its high strength to weight ration. T45 is also weldable, but unlike other chome-moly tube grades does not require heat treating after welding.
Being a british standard steel, is there an equivalent that manufacturers use in NZ?
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