View Poll Results: What is the rockwell hardness on a carbon steel razor
- Voters
- 23. You may not vote on this poll
-
35 ~ 45
0 0% -
45 ~ 55
4 17.39% -
55 ~ 65
18 78.26% -
65 ~ 75
1 4.35%
Results 1 to 10 of 22
Thread: How Hard Are The Vintage Blades
Hybrid View
-
12-06-2006, 04:27 AM #1
- Join Date
- May 2005
- Posts
- 1,304
Thanked: 1Yesterday was the best day to find another something to do...
Last edited by urleebird; 12-20-2006 at 11:53 PM.
-
12-06-2006, 04:45 AM #2
- Join Date
- Apr 2006
- Posts
- 3,396
Thanked: 346I know nothing about metallurgy so I don't have any face to lose, but I've always assumed the vintage sheffield blades were 57-60, the pumas and swedes were 59-62, the americans were 60-62, and the friodurs were 61-63.
Edit: Some guys have PM'ed about this. This is just a guesstimate. Puma knives are hardened to 57-59 accd to info I've seen, and I've always heard that 65+ is essentially unhoneable due to hardness and brittleness. Since I use an arkansas stone on both my knives and razors, I'm interpolating between these two extremes based on how they feel on the hone -- this may or may not be reliable. Puma tests all their knives for hardness, at least all of mine have a little indentation from where the diamond pressed into the steel, and all of my Puma knives have a very consistent feel on the hone that is similar to how my best sheffields feel, so I really doubt that the vintage sheffields are much lower or higher than this.Last edited by mparker762; 12-06-2006 at 03:36 PM. Reason: explication
-
12-06-2006, 04:56 AM #3
I was thinking of the ballpark of 60 as someone mentioned it here earlier. I'm glad my assumption was correct. A better question would be "how hard would be too hard to hone with our gear, within a reasonable amount of time?"
-
12-06-2006, 09:04 AM #4
Id say pretty soft, 45-55. But maybe even lower...
Nenad
-
12-06-2006, 10:03 AM #5
- Join Date
- May 2005
- Location
- East Liverpool, Ohio
- Posts
- 971
Thanked: 324I know I sent in three razors for testing some time ago.
1. an old Wade and Butcher
2. an old Case razor
3. a broken Puma razor
I thought it would be interesting to get some analysis on the blades of the vintage Sheffields, Case, which I consider one of the best Americans, and Puma - premium quality Solingen stuff.
I won't post the results yet but I'll send them to Bill via PM so he can add them to his testing list. This is an interesting poll.
-
12-06-2006, 02:02 PM #6
- Join Date
- Oct 2006
- Posts
- 1,898
Thanked: 995I have a Rockwell machine in my shop. It's not milspec anymore, but will definitely give good results within a half point either side.
I'd much rather have broken pieces or blade flakes to test. The diamond point has been the source of fractures on blades that were too brittle.
-
12-06-2006, 02:05 PM #7
-
12-06-2006, 02:15 PM #8
- Join Date
- May 2005
- Posts
- 1,304
Thanked: 1Yesterday was the best day to find another something to do...
Last edited by urleebird; 12-20-2006 at 11:53 PM.