Which metal would flex more?

[PaisleyPCdoctor]

Please accept my apologies, I assumed that you had really basic access to Internet reference and the required brain power with which you could work out from the prolific use of Aluminium alloys in Aircraft that for a similar weight a suitable Aluminium Alloy can provide greater stiffness for a given weight than any Iron based Alloy.
From there it should be a basic mathematical job to compare size and strength, and hey, if you're lazy then someone else might do the work for you:D

Yes, I'm an uneducated, illiterate, retarded, deaf, blind, quadraplegic, emotionally unstable, little girly with serious mental health problems including hallucinations and psychosis. I have no Internet access and I'm banned from google for asking too many silly questions and overloading their servers (not easy as I have no Internet and my electricity was cut off when I was an infant and is still off).
I frequently soil my pants and I'm a total burden on society due to my asylum status and unwillingness to work but still letting the nhs replace my heart and lungs and my liver twice.

Does that qualify me as a forum member you could manage to ignore and possibly even better, not dignify with responses?