“Super steels” is a term made up by the people making things out of steel and not the steel manufacturer.
Every once in a while, I see a new steel or blade material pop up and everyone gets excited about it only to find out that it’s not as good as what is already out there.
In my forty one years of knife making, I have seen lots of makers experiment with wild complicated heat treatments and then make outrageous claims. They explain the “science” behind what they are doing but when pressed they have no idea what they are talking about, it does sound impressive using a bunch of big made up terms though.
BC is using higher austenitizing temperatures putting more carbon in solution allowing for higher attainable hardness. The mar-quench allows for faster quench rates also leading to higher hardness. The slow cooling in the oil is a type of aus-temper and probably produces some bainite, some testing shows bainite to be tougher than martensite. I’m sure with the high aus-temps, there is some retained austenite making things tougher also.
A steel like aeb-l will never be as wear resistant as 10-V, and 10-V will never be as tough as aeb-l no matter what heat treat protocol was followed. Steels are limited by their nominal chemical make up.
Solidification, homogenization, forging, rolling, normalizing, annealing, austenitizing, quench rate, sub-zero quenching, tempering etc. all affect the outcome. Most makers understand very little about the entire process.
The bigger the story, the bigger the price of the knife.
Hoss
Every once in a while, I see a new steel or blade material pop up and everyone gets excited about it only to find out that it’s not as good as what is already out there.
In my forty one years of knife making, I have seen lots of makers experiment with wild complicated heat treatments and then make outrageous claims. They explain the “science” behind what they are doing but when pressed they have no idea what they are talking about, it does sound impressive using a bunch of big made up terms though.
BC is using higher austenitizing temperatures putting more carbon in solution allowing for higher attainable hardness. The mar-quench allows for faster quench rates also leading to higher hardness. The slow cooling in the oil is a type of aus-temper and probably produces some bainite, some testing shows bainite to be tougher than martensite. I’m sure with the high aus-temps, there is some retained austenite making things tougher also.
A steel like aeb-l will never be as wear resistant as 10-V, and 10-V will never be as tough as aeb-l no matter what heat treat protocol was followed. Steels are limited by their nominal chemical make up.
Solidification, homogenization, forging, rolling, normalizing, annealing, austenitizing, quench rate, sub-zero quenching, tempering etc. all affect the outcome. Most makers understand very little about the entire process.
The bigger the story, the bigger the price of the knife.
Hoss