52100 working sequence

[samuraistuart]

I'm hoping you guys will help me out with my first time using 52100. It came from "New Jersey" annealed. I do stock removal only, no heat is imparted to the blade during profiling, grinding. Grinding is done with files.

I understand 52100 is more difficult to treat than simple carbon steels. Would ya'll verify my procedure here?

1650F, for 5 minutes, quench in oil
1350F, quench in oil
1250F, cool to black, quench in oil

1475F, for 10 minutes, quench in oil.

temper 400 or so for 2 hours x 2

I realize blood and sweat are shed by knifemakers who have developed refined heat treatment procedures for certain steels. I would like to say that I appreciate, to a great extent, the information given freely on this forum, especially when it comes to the "best" heat cycling for a given steel. Thank you so much for your thoughts, time, and consideration.

 

[chad2]

I'm hoping you guys will help me out with my first time using 52100. It came from "New Jersey" annealed. I do stock removal only, no heat is imparted to the blade during profiling, grinding. Grinding is done with files.

I understand 52100 is more difficult to treat than simple carbon steels. Would ya'll verify my procedure here?

1650F, for 5 minutes, quench in oil
1350F, quench in oil
1250F, cool to black, quench in oil

1475F, for 10 minutes, quench in oil.

temper 400 or so for 2 hours x 2

I realize blood and sweat are shed by knifemakers who have developed refined heat treatment procedures for certain steels. I would like to say that I appreciate, to a great extent, the information given freely on this forum, especially when it comes to the "best" heat cycling for a given steel. Thank you so much for your thoughts, time, and consideration.

1600 cool to dull red, quench
1500 quench
1350 quench

anneal 1000 2 hours kiln cool overnight

1475 for 5 to 7 mins no more then 10
quench in canola oil or better

temper 350 for 2 hours check hardness
temper 400 for 2 hours check hardness
temper 400 for 2 hours

 

[Willie71]

Search some recent threads. Stacy posted the NJSB 52100 sequence, which has a long soak, 1/2h. IIRC it's because of the spheroid anneal. I ordered some from NJSB last week, and will follow Stacy's heat treat. I think he mentioned peters has the ht for this source programmed specifically.

 

[samuraistuart]

Search some recent threads. Stacy posted the NJSB 52100 sequence, which has a long soak, 1/2h. IIRC it's because of the spheroid anneal. I ordered some from NJSB last week, and will follow Stacy's heat treat. I think he mentioned peters has the ht for this source programmed specifically.

Actually, this working sequence came from Stacy, IIRC. I had it written down in my book of notes. Just wanted to verify, and get others opinions. Thanks Chad and Willie71! Anyone else?