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Old 2010-09-23, 11:57 AM   #18
rory_a
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Real Name: Rory
Join Date: Sep 2010
Location: Reno, NV
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Car: Miata, shit.
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NOW WITH 100% LESS STI!
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Quote:
Originally Posted by AtomicLabMonkey View Post
Well, they're both steel. 1018 or 1020 for example are regular mild carbon steels, and 4130 is a higher carbon content steel with chromium, molybdenum, and some other good stuff mixed into the metal composition. BUT.. 4130's strength is all about how it's been heat treated (quenched/tempered).

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INCREDIBLY good to know for all who are looking at chromo cages, frames, chassis. I can all but guaranty none of the chassis or bars available to the VW community are treated to any heat aside from welding.
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