Does anyone here know much about Titanium? There is quite a bit for sale around where I am, Grade 2 mostly as far as I can tell, but higher as well. I realise the grade is low means it's lower quality, but what should I know further? Is it still as strong as steel at half the weight etc? Is there a grade I should be aiming at for 'general aircraft use' (relative), like you would generally use 4130 if steel, or 6061/2024 if aluminium? Not much discussion about it, are there drawback or just too expensive for general use that scares people off?