CDHumiston
Well-Known Member
I usually grind and heat treat blades and send them to my dad so he can have something to do. He likes doing handle work.
He decided to try a couple of blades from eBay because I've been busy churning out Christmas orders. He suspected the blades were off
right away because when cleaning them up on his little 1x30 grinder they were just too easy to grind.
I had him send them to me for testing. The 1st blade was a nice-looking Damascus blade. It tested at 35/40 HRC on my Rockwell Hardness Tester.
The 2nd blade was J2 420 stainless steel. It tested at 15/20 HRC! Yes, you heard me right!
Just to make sure I wasn't hallucinating I tested both again with the same results. So...I got my calibration discs out and tested my hardness tester. Both
blocks came to within .5 HRC of their calibrated numbers.
I'm of the firm belief these blades were not heat treated at all! I'm having him send them back because I don't want to fool with them, and I have no
idea of the true metal types used for these blades...
The blades came from Texas, but the way they were packaged wrapped in plastic with sticky grease they were clearly from China, Pakistan or India.
Moral of the story? Buyer Beware! I feel sorry for the guys who have no way of testing the steel. Someone just looking to put scales on a nice blade
and use it in the kitchen throwing their money away....
He decided to try a couple of blades from eBay because I've been busy churning out Christmas orders. He suspected the blades were off
right away because when cleaning them up on his little 1x30 grinder they were just too easy to grind.
I had him send them to me for testing. The 1st blade was a nice-looking Damascus blade. It tested at 35/40 HRC on my Rockwell Hardness Tester.
The 2nd blade was J2 420 stainless steel. It tested at 15/20 HRC! Yes, you heard me right!
Just to make sure I wasn't hallucinating I tested both again with the same results. So...I got my calibration discs out and tested my hardness tester. Both
blocks came to within .5 HRC of their calibrated numbers.
I'm of the firm belief these blades were not heat treated at all! I'm having him send them back because I don't want to fool with them, and I have no
idea of the true metal types used for these blades...
The blades came from Texas, but the way they were packaged wrapped in plastic with sticky grease they were clearly from China, Pakistan or India.
Moral of the story? Buyer Beware! I feel sorry for the guys who have no way of testing the steel. Someone just looking to put scales on a nice blade
and use it in the kitchen throwing their money away....