How to Heat Treat Parts?

So I have an axle being resplined for my car right now and I was told I would have to heat treat it when I got it back. I am trying to find someone in Toronto that can do it for me at a decent price, but is there a way to do it at home? The axle shaft was softened and then resplined. The internet said to just bake it in my oven until it was 350F but that seems kinda ghetto for a car part.

Any tips? or should I just get it done professionally?

I would just get it done professionally. There are suitable ways to get it done at home, and make it work, but really getting something heat treated professionally is not too expensive.

I think there is a company in the burlington area, or even kitchener that is called Hitemp. They heat treat parts by the pound. I know when i used to heat treat certain parts, i gave them 50 pcs at a time, it was about 5 lbs. It only cost me about 40$ total. And that was heat treated and black oxided, now i have my own black oxide hot bath, and I dont heat treat nearly as much, but thats an option for ya!

Im quite positive they have one in that area, I know burlington does, but im nearly positive kitchener does as well.


Taylor

I will get it done professionally then. Thats what my gut said too so I figured I should go that route anyways.

Do you by any chance know what the metal type of a GM FWD axle would be? I thought it was just steel... goes to show how well I know the different types of steel...

If i had to put a guess out there, i would say 4140 thats pretty typical for axles.



Taylor

If your not experienced in annealing, heat treating, and tempering steels I would just have a professional shop do it. There are several different ways to heat treat different types of steels. Lots of parts are tempered after they are hardened, after hardening steel it can become brittle and tempering brings back the strength. Plus you need to know the rockwell that you are trying to achieve. I'm surprised that the shop annealed it, resplined it, but didn't re-harden it.....