Rock'n'Roll
MF Ehrenmitglied
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Da wir mittlerweile über Gefühle und Schleifkurse in Gerümpel-Küchenschubladen gelandet sind, bringe ich mal in Erinnerung, um was es hier eigentlich aktuell ursprünglich ging: D2
Summary and Conclusions
The finer carbide structure of PSF27 provides superior toughness vs conventional D2. And the yet finer structure of CPM-D2 gives it better toughness than either PSF27 or D2. A recommended heat treatment would be 1850-1900°F for 30 minutes, plate quench, cryo, and temper 300-500°F. Without cryo the austenitizing temperature should be no higher than 1875°F. There are alternative grades that have more desirable properties, in my opinion, such as CPM-154 for better corrosion resistance, 10V/Vanadis 8/K390 for better edge retention, or CPM CruWear for better toughness. And 154CM can be used as a relatively low cost stainless steel with comparable toughness and edge retention to conventional D2. However, D2 has been a mainstay in knives for decades now and these heat treatment recommendations will hopefully help those knifemakers and companies that choose to use it.
R’n‘R
Summary and Conclusions
The finer carbide structure of PSF27 provides superior toughness vs conventional D2. And the yet finer structure of CPM-D2 gives it better toughness than either PSF27 or D2. A recommended heat treatment would be 1850-1900°F for 30 minutes, plate quench, cryo, and temper 300-500°F. Without cryo the austenitizing temperature should be no higher than 1875°F. There are alternative grades that have more desirable properties, in my opinion, such as CPM-154 for better corrosion resistance, 10V/Vanadis 8/K390 for better edge retention, or CPM CruWear for better toughness. And 154CM can be used as a relatively low cost stainless steel with comparable toughness and edge retention to conventional D2. However, D2 has been a mainstay in knives for decades now and these heat treatment recommendations will hopefully help those knifemakers and companies that choose to use it.
R’n‘R