- Joined
- Nov 24, 2003
- Messages
- 5,337
Came across 19c27 for the first time this past Friday. I past by to pay for some laser cutting of my designs in 12c27 when I was properly introduced to the new steel in RSA.
Several knife makers had made the dealer examples in 4mm and I had a chance to test them (without destruction testing). The carving knife was 60RC and flexed easily. Tough as nails (metaphorically). Looking at the charts the process of hardening seems to favour specialists or very well controlled manufacturing.
I am looking forward to my next batch of home jobs, I changed the order so that the larger 6' blades are going to be done in 19c27. They will be hardened by a specialist. It appears that the 19c27 is tougher than 12c27 on the same rockwell, particularly over 58RC.
The others will remain 12c27 at RC57-58 so that the non knife-nuts can sharpen them.
Several knife makers had made the dealer examples in 4mm and I had a chance to test them (without destruction testing). The carving knife was 60RC and flexed easily. Tough as nails (metaphorically). Looking at the charts the process of hardening seems to favour specialists or very well controlled manufacturing.
I am looking forward to my next batch of home jobs, I changed the order so that the larger 6' blades are going to be done in 19c27. They will be hardened by a specialist. It appears that the 19c27 is tougher than 12c27 on the same rockwell, particularly over 58RC.
The others will remain 12c27 at RC57-58 so that the non knife-nuts can sharpen them.