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Username Post: Axle center section        (Topic#359476)
sz0k30 
"11th Year" Gold Supporting Member
Posts: 448
sz0k30
Loc: Oakland Co., Michigan
Reg: 10-12-08
01-15-20 02:48 PM - Post#2784442    

Curious. What material are axle center sections (such as: GM 10 & 12 bolts, Dana's) normally made from? Cast iron or cast steel?



 


Rick_L 
Member #409
Posts: 27676
Rick_L
Loc: Katy, Tx, USA
Reg: 07-06-00
01-15-20 04:49 PM - Post#2784446    
    In response to sz0k30

Cast steel if it's cast. And you can weld to it if clean enough.



 
454cid 
Valued Contributor
Posts: 3138

Age: 46
Loc: West Michigan
Reg: 02-18-12
01-17-20 04:03 PM - Post#2784561    
    In response to sz0k30

I don't hear of "cast steel" much, so I just looked it up... seems to be a difference in carbon content. The cast iron is greater than 2%, and cast steel is lower than 2%. It sounds like it's basically the same, to me.... sort of analogous to the different grades of stainless or aluminum (each having a bit different properties that lend itself to certain applications). You've also got ductile iron, and grey iron.

I've always heard that the center sections were cast iron, but that could be a generalization.

Why do you ask?

99 K3500 RCLB


 
scrambldcj8 
Silver Supporting Member
Posts: 2529
scrambldcj8
Loc: Belchertown, MA
Reg: 04-06-03
01-18-20 04:30 AM - Post#2784582    
    In response to 454cid

I thought it was more of a ductile (nodular) iron as well...similar to the knuckles and/or inner C's. Which are fairly weldable w/pre/post heat and the right rod.
But then if they were all ductile/nodular the 9" Ford "N" dropout center section would be no different form the non "N" dropouts....LOL




https://willmanind.com/what-ductile-iron/

Maybe it's the same/similar.....any metallurgists on board?



 
Rick_L 
Member #409
Posts: 27676
Rick_L
Loc: Katy, Tx, USA
Reg: 07-06-00
01-18-20 10:44 AM - Post#2784595    
    In response to scrambldcj8

Ductile iron, nodular iron, and cast steel are all same or similar materials. Much stronger and less brittle than cast iron, and weldable.



 


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