Originally Posted by 1ironwill View Post
Originally Posted by 03ranger4oh View Post
Ni-rod has very little shrinkage when it cools,it makes for an excellent stress free weld.....which makes it a very good choice welding the heavy differential center section to a mild steel tube,,less warpage and stress on the axle tube and no one knows the exact chemical composition of all those different center chunks..you can;t even find an answer from any of original manufacturers of them..
Ni-rod is also great for dissimilar materials...
Ni-rod is also great for corrosion and abrasion resistant applications and high heat applications as well...
Among countless other suitable application for Nickel fillers........
Ni-rod is commonly known by people to use it for cast iron because of it's ability to weld dissimalar materials a low stress filler,cast iron NEEDS little to no stress or it will crack easily...but that's just scratching the surface of the uses of Ni-rod......
Will 70 series fillers work on the axles?..."probably"...
Have they held up in extreme duty?...yes..
Have they failed in extreme duty?...yup...seen quite a few with my own eyes at drag strips and dirt tracks...but also seen quite a few hold up well....the ones i seem to find out that held up were the people who took the time to do a pre and post heat on the center section...eliminating heat sink being caused by the heavy center section.........
If i decide to weld center sections..i go with SMAW Ni-rod....probably because of the industry i work in i have easy access to it( in the nuclear industry once a box or can of rod is past a certain date it goes to the trash can)
But even if i didn't have ease of access to it,my peace of mind welding it with a Ni-rod would be well worth the extra money buying it in my opinion..
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Originally Posted by Ironworker709 View Post
|.035 , cast , cool slowly , ford 8.8 , housing , pre-heat , tubes , weld|
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