Welding Grade 8 nuts

[NPloysa]

On my air ride I kinda screwed up! I made clearances too close to my axle on my axle side of my airbag mount, oops. I changed design to make the bracket mount clamp onto the axle instead of welding to the axle.



In this design I am going to use two 5/8" or 1/2" bolts to clamp the mount to the axle. Can I weld the Grade 8s very well or should I use a galvanized nut?



I would be using a Mig.



Thanks!

 

[nickleinonen]

the higher the grade of steel, the better the weld will be... the only time welding steel sucks is when you get hardened steel [like steel wear plate]. . i've welded grade 8 fastners. i do it all the time on fuel tank bolts at work - 1-1/4"x10" bolts i weld a 3/4"x6" bolt on the head so it when you tighten the nut under , the bolt head will jam against the frame...



galvnized steel is no good to weld. the galvnized stuff burns off... and the fumes from that are toxic

 

[NPloysa]

Thanks, that's what I wanted to hear!



Nick

 

[SRadke]

Nick is right, only catch is they won't be grade 8 anymore but I doubt it matters in your application



-Scott



P. S. The "stuff"' that burns off galvanized nuts is the zinc coating and yes, it is toxic.

 

[NPloysa]

Nick is right, only catch is they won't be grade 8 anymore but I doubt it matters in your application



-Scott



P. S. The "stuff"' that burns off galvanized nuts is the zinc coating and yes, it is toxic.

Not grade 8 after welding because the heat from the welding re-tempers the steel?



Nick

 

[SRadke]

Not grade 8 after welding because the heat from the welding re-tempers the steel?



Nick

In short, yes.



-Scott

 

[Paychk]

Not grade 8 after welding because the heat from the welding re-tempers the steel?



Nick

Anneal means to soften and is the correct term, temper means to toughen.

 

[NPloysa]

Anneal means to soften and is the correct term, temper means to toughen.

Ok, so it UN-tempers, haha.



Thanks for clearing that up!



Nick

 

[SRadke]

Un-temper is actually more accurate than anneal. The nuts are tempered when you buy them, anything you do with heat could remove that so "un-temper" is very accurate. You may end up annealing them, or, if cooled too quicly, you may harden them. Depends what you do.



-Scott