04-01-2018, 10:36 AM
(This post was last modified: 04-01-2018, 10:52 AM by scott.livesey.)
Jan,
some thoughts from another knife maker. first, pick a good steel to work with. O1 or 1.2510 has been around a long time. the newer versions have 0.20% vanadium in addition to 0.50 chrome and tungsten. vanadium and tungsten form very small carbides which a dispersed throughout the steel. if purchased as 'Precision Ground Flat Stock' it is ready to use and heat treat. I prefer it when doing stock removal, I remove steel using files, sanders and grinders. I don't forge because I don't have the equipment. the key is to heat treat at the minimum possible temperature for the shortest time. Temperature has the most effect on grain growth. for basic carbon steels like O1 or 52100 or 1.2519, make your maximum heat 1500F/825C. for material thinner than 2mm, leave in the furnace for 7 to 9 minutes. quench. I use canola or rapeseed oil. this is guaranteed to give you the finest grain and maximum hardness.
how much steel will flex depends on geometry not heat treat. here is a good reference http://www.hypefreeblades.com/forum/view...?f=3&t=244
a quote from the article: This physical fact also rules bending tests and test alike when bending is involved. And as Kevin mentioned before, it is material related and doesn't get changed by whatever HT on does on the blade.
scott
some thoughts from another knife maker. first, pick a good steel to work with. O1 or 1.2510 has been around a long time. the newer versions have 0.20% vanadium in addition to 0.50 chrome and tungsten. vanadium and tungsten form very small carbides which a dispersed throughout the steel. if purchased as 'Precision Ground Flat Stock' it is ready to use and heat treat. I prefer it when doing stock removal, I remove steel using files, sanders and grinders. I don't forge because I don't have the equipment. the key is to heat treat at the minimum possible temperature for the shortest time. Temperature has the most effect on grain growth. for basic carbon steels like O1 or 52100 or 1.2519, make your maximum heat 1500F/825C. for material thinner than 2mm, leave in the furnace for 7 to 9 minutes. quench. I use canola or rapeseed oil. this is guaranteed to give you the finest grain and maximum hardness.
how much steel will flex depends on geometry not heat treat. here is a good reference http://www.hypefreeblades.com/forum/view...?f=3&t=244
a quote from the article: This physical fact also rules bending tests and test alike when bending is involved. And as Kevin mentioned before, it is material related and doesn't get changed by whatever HT on does on the blade.
scott