Roller cam core id

[tuffxf]

G,day,
Just wondering how you id a steel roller cam core to figure out what material / type of core it is?
No other markings.
Cheers
Paul

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[1972ho]

Cam king would more than likely know I posted a pic of nascar flat tappet camshaft and he was able to tell what material it was.By the way is that a ford cleveland cam camshaft.

[tuffxf]

Yes it is, yeah I'd reckon cam king would be all over it!
Cheers

[Newold1]

You can definitely see the induction hardening coloration on the end shown.

[CamKing]

It's an Engine Power Components core. It's Induction hardened steel.
EPC doesn't list the grade of steel in their catalog, but I believe it's 5150

[swampbuggy]

Camking----how would you compare 5150 to 8620 assuming both had ideal prep. ? Thanks Mark H.

[CamKing]

Camking----how would you compare 5150 to 8620 assuming both had ideal prep. ? Thanks Mark H.

the 5150 is induction hardened.
The 8620 is carborized.
If done correctly, the induction hardening is deeper then the carborizing.
If done correctly, they're both fine.

IMO, there is more chance of "not being done correctly", with the induction hardening.
It's a quality control issue I see, every once in a while. If the induction hardening heat coils, are not directly over the lobes, it can harden the material between the lobes, and that can cause the cam to break. With carborizing, the copper plating between the lobes blocks the heat treat from hardening the cam between the lobes.

[swampbuggy]

Thank you Sir, Happy Thanksgiving to ALL !

[tuffxf]

Gday Mike,
Thanks very much for the reply!☺
Cheers
Paul