Case hardening leaded steel

Case hardening leaded steel

This topic has 6 replies, 4 voices, and was last updated 17 April 2023 at 15:26 by Brian Wood.

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16 April 2023 at 17:15 #641522
David Davies 8
Participant
@daviddavies8
Hi

I have some Kasenit powder which I intend to use on a part that i want to make.

It occurred to me that I have both EN1A and EN1A Pb (ie leaded) steel.. Will the process work with leaded steel or should the EN1A be used.

I know that leaded steels are not suitable for welding, this made me wonder about case hardening.

TIA

Dave
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16 April 2023 at 17:15 #34206
David Davies 8
Participant
@daviddavies8
Is it a no-no
16 April 2023 at 18:06 #641526
Brian Wood
Participant
@brianwood45127
I think the same applies, the lead content will most likely interfere with the hardening process and render it ineffectual

Brian
16 April 2023 at 18:29 #641528
SillyOldDuffer
Moderator
@sillyoldduffer
I found a few websites like this example which say EN1A with Lead can be case hardened, so worth trying.

Case Hardening is done at a lower temperature than gas or electric welding – no melting, which is what causes trouble. Leaded steel cracks when the metal recrystallises resulting in poor welds. Welding Leaded Steel creates poisonous fumes too, but I doubt case hardening gets hot enough.

Dave
16 April 2023 at 18:35 #641529
bernard towers
Participant
@bernardtowers37738
I caseharden small parts made with en1a leaded with no problems. They are box hardened in the barbque.
17 April 2023 at 06:04 #641567
David Davies 8
Participant
@daviddavies8
Good morning all

Thank you for all your replies.

I like Bernard's method, Any excuse for a barbeque is good by me!

Cheers

Dave
17 April 2023 at 15:26 #641659
Brian Wood
Participant
@brianwood45127
I stand corrected and better still by those who have done it successfully. Thank you for adding to my knowledge.

Regards Brian
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