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8670 steel Gene Martin #17876 02/12/07 05:49 PM
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scrappy Offline OP
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scrappy
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I just bought A blade blank from custom knife maker Gene Martin. the blade is made of modified 8670. Gene told me it is a supper L6.
does anybody know anything about 8670 steel?
Re: 8670 steel Gene Martin [Re: scrappy] #17877 02/12/07 06:35 PM
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Lexington, SC
Rich Offline
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Rich
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This is a good question for Warren. Does any one know if he has found his way to the yard yet?
Re: 8670 steel Gene Martin [Re: Rich] #17878 02/12/07 07:43 PM
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Cobalt Offline
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8670 is supposed to be a cheaper version of L6 made for knives.

8670
C- .75%
Mn-.60%
Si-.25%
Cr-.50%
Ni-1.00%
Mo-.15%

L-6
C .75
Mn .70
Si .25
Cr .80
Ni 1.5
Mo .30
Re: 8670 steel Gene Martin [Re: scrappy] #17879 02/12/07 07:56 PM
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thombrogan Offline
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Expect slightly more wear-resistance than S7; slightly less impact resistance than S7; and expect less corrosion resistance. Expect to be highly pleased if ground and heat-treated for what you're doing.

"I knew you before you knew you had hands" ~Tracey Brogan
Re: 8670 steel Gene Martin [Re: thombrogan] #17880 02/12/07 09:03 PM
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Cobalt Offline
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Quote
Expect slightly more wear-resistance than S7; slightly less impact resistance than S7; and expect less corrosion resistance. Expect to be highly pleased if ground and heat-treated for what you're doing.

but remember SR77 has more wear resistance than S7., so they will probably be close in that category. SR77 will have more impact toughness.
Re: 8670 steel Gene Martin [Re: Cobalt] #17881 02/12/07 10:19 PM
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Rich_S Offline
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L6 starts rusting if you look at it the wrong way. Other than that, it's a very tough steel.
Re: 8670 steel Gene Martin [Re: Rich_S] #17882 02/13/07 05:18 PM
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scrappy Offline OP
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L6 starts rusting if you look at it the wrong way. Other than that, it's a very tough steel.
that is very dissapointing, everything else sounds dood.
Re: 8670 steel Gene Martin [Re: scrappy] #17883 02/14/07 10:05 AM
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kevtan Offline
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They were used a lot by John Greco for his basic knives.

http://www.grecoknives.com/

Or do a search over at BF for a lots more info.

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