Question: SR-77

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BabyJWuu

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Hi, can someone advise me what SR-77 steel is and can you compare it to another type of steel that is similar or the same.

In regard to Scrap Yard Knives, I read their technical specifications. Are their specs as great as they claim? Any other info on this company would be appreciated, I have never heard of them before now.

http://www.scrapyardknives.com/tech.htm

Thank you,

BabyJWuu :)
 
It is a slightly modified S7 tool steel with a really good heat treat process.

S7 is a high impact tool steel used in things like jack hammer bits and stamping dies.

Scrapyard gets the most out of it and it makes an excellent hard use knife blade.

Not the best for edge holding but it is fairly easy to sharpen.

I've had good luck with it and really like it.

Do a google search on it and you will be surprised!
 
Sarge covered it. Scrap Yard is part of the Busse family of knife companies. The companies total three in number and include Busse Combat and Swamp Rat. All Busse family knives are made in the Busse Combat manufacturing facility in Wauseon, OH. The two latter companies maintain subforums here in the Manufacturers area. Scrap Yard has it's own forum here:

www.scrapyardknives.com
 
bld522 said:
Sarge covered it. Scrap Yard is part of the Busse family of knife companies. The companies total three in number and include Busse Combat and Swamp Rat. All Busse family knives are made in the Busse Combat manufacturing facility in Wauseon, OH. The two latter companies maintain subforums here in the Manufacturers area. Scrap Yard has it's own forum here:

www.scrapyardknives.com
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Thanks 522 ... I was going to do an edit with that info but you got it. :thumbup:
 
SR77 is a very interesting steel imo.

Brutally tough as tough as INFI imo, I haven't been able to get mine to chip like Rowens TOPS 1095 at all, it'll take a razor edge and lose it pretty fast unlike SR101 (which takes and holds it), but resharpens easier than 154cm, sometimes I have a problem inducing a wire edge on knives that have AUS8a but this steel tends not to do that either.

I am no steel expert, there are many here who know more than me and can get down to the sweet science of the steel, all I know is in my own limited experience.

I have a Dogfather and Regulator, both are the sharpest knives I own. Great, great knives, Scrapyard Knives are the bomb and bombproof.
 
For a large, heavy duty fixed blade, it performs extremely well. If your plan is for a skinning knife or whittler, there are better options. The Busse and Busse-kin people all absolutely stand behind their products and are great to deal with. :thumbup:
 
I too have the SY Regulator. At a .333" thickness (SR-101) I think you'd be hard pressed to break one. Very sharp edge on mine now. If you need a burly 7.5" fixed blade at a reasonable price this is a good one. Check the exchange, production just ended so prices are still low.
 
SR-77 is probably one of the toughest steels out there if not the toughest, especially with the heat treat it gets from scrapyard at the sacrifice of edge holding ability. I'd say it does best in larger knives, choppers and hard use knives like the Dog Father.
 
michaelm466 said:
SR-77 is probably one of the toughest steels out there if not the toughest, especially with the heat treat it gets from scrapyard at the sacrifice of edge holding ability. I'd say it does best in larger knives, choppers and hard use knives like the Dog Father.
Click to expand...

I doubt it was intended this way at all, I just want to clarify to anybody who may be reading this that the steel sacrifices edge holding ability for toughness as a basic property of the material, not because of the way SY heat treats it. In fact, SY's heat treatment pulls more abrasive edge holding out of it than I've ever seen out of S7 from anybody else, even at the same hardness. It's really rather remarkable. Still doesn't turn it into a whole new steel, but damned if the potential isn't maximized. :thumbup:

If only I could put twenty tons of S5 into Jerry's hands... :(
 
t1mpani said:
SY's heat treatment pulls more abrasive edge holding out of it than I've ever seen out of S7 from anybody else, even at the same hardness.
Click to expand...
You are correct. Mike Stewart said essentially the same thing. He also said that Jerry Busse manufactures some of the toughest knives on the planet. I think it's safe to say that Mike knows what he's talking about.
 
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