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Title: rust & weight Post by: FC P/VAN on February 22, 2009, 09:09:24 PM I am in the middle of removing the l/h sills on 1 of my wagons, it was 2/3 full of rust pieces. the outer sill had only very few minor thin spots and the inner is still quite strong (going to replace anyway while i am in there), just wanting to find out where all this bloody rust comes from?? appears to be far far far too much to be from the sill outer only.
once i emptied all the rust from the sill i was wondering how much it weighed so i got to the scales and was surprised to find 4.2kg of rust had come from inside 1 sill. are our cars getting heavier with the more rust they get and steel they lose, has anyone weighed their project before and after "restoration"?? cheers FC P/Van Title: Re: rust & weight Post by: FX1975 on February 23, 2009, 02:05:44 AM Rust tends to be heavy due to its moisture content
Hope this helps Frank Title: Re: rust & weight Post by: Jonno on February 23, 2009, 07:39:25 AM Hi FC P/Van,
Your 4.2kg of rust comes from 'about' 3.4kg metal (hard to say exactly since rust is a mixture of oxides and hydroxides). But looking on the bright side...this means your wagon is 99.7% rust-free! Man I should be in marketing... Jonno ;D Title: Re: rust & weight Post by: mikey on February 23, 2009, 07:49:47 AM Rust is also bigger than the amount of original steel it came from, pretty sure it is about 8 times the volume.
Remember reading in some engineering magazine that rust has a very strong expanding force and has been known to break bolts on structures when the rust was trapped in between two beam plates. Cheers M Title: Re: rust & weight Post by: FC P/VAN on February 23, 2009, 08:25:10 AM i honestly never thought rust could be so interesting to learn about, but i also wish i never had any to study.........lol
it is great to hear everyones different views on these topics that i have never heard anyone ask about before. cheers FC P/Van |