Thanks Neil,
Most of what I have been reading indicates that 4130 is 'stronger' but 1020
is 'tougher' - seeming to indicate that the 1020 will absorb more crash
energy by bending than the 4130. I only meant brittle in a relative sense -
not to imply that normalized 4130 is brittle.
I'd like to build a motorcycle streamliner for one of the smaller
displacement classes, thus my queries on 4130 vs.1020. At this point,
considering that the complete vehicle will be fairly light, I am leaning
toward 1020. I was thinking about using 4130 for the plate on the top of
the roll bars - and that triggered my question.
At this point I'll stay with a single steel variety - jury still out on
which variety.
Do you have a strong opinion (or mild recommendation) either way?
Thanks,
Jim.
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