Does bluing a bar harden it? I have no idea what the advantage is. I would take a shirt XXL or XL if that works better, but then I will have to lose weight to wear it
Sent from somewhere
Bluing is essentially a way to oxidize a metal to a steady state so that corrosion can't form on it. On most steels used for chainsaw
bars corrosion is not much of an issue. Composition is something like this (for stihl bars)
http://zknives.com/knives/steels/UNE/f.5220.shtml
High carbon/moly steel like the old bars from the 70s and before can benefit from it. Modern bars have a nice amount of silicon in em, which increases wear resistance, corrosion resistance, etc. Well, you can read it on the cheat sheet.
http://www.substech.com/dokuwiki/doku.php?id=effect_of_alloying_elements_on_steel_properties
So, mostly cosmetic on a modern bar. And even when it was a popular method of corrosion inhibiting, it was done because it was cheap. Much like zinc coating various metal products(fencing, pipe, etc). Later a new process evolved that was a bastard stepchild, caller parkerizing.
https://en.wikipedia.org/wiki/Parkerizing Cheaper, more durable, seems to hold oil a little better. Comes in mud/clay color, and black. The later version does give some improvement of wear resistance, and comes with an very unweildly name.
https://en.wikipedia.org/wiki/Ferritic_nitrocarburizing Is seen on the metal slide of your average glock.
Of course, everything described in the previous paragraph can be called "bluing", because your average gun nut doesn't know jack about a given process, they just get it out of a box and follow the instructions like someone about to dye their hair. lol! Will it cause flipper babies? Who knows? MSDS sheet? What's that?
http://www.brownells.com/gunsmith-tools-supplies/metal-prep-coloring/index.htm