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- Jun 2, 2020
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While we're on the topic of utes...who makes top quality blades for them? Many mfgrs don't mention the steel they use, and the few who do, specify SK2 (or occasionally SK5).
SK2 aka C120U, aka W1A-11 1/2: It appears to be an inexpensive, simple, high-carbon (1.2%), non-or-low-alloy, low-speed, non-shock-resistant, low-grade steel. May have Rc in the 58-63 range.
Larrin says: “It’s more similar to White #1, 26C3, “silver steel,” or sometimes generically called “cutlery steel.” Or W1 with a high carbon content. 1095 would be the closest very common alloy but with more carbon of course…The extra carbon brings a bit more wear resistance and hardness than 1095.”
SK5 on the other hand appears to be a low/mid-range steel with 0.85% carbon. It apparently excels as a tough inexpensive carbon steel. CRKT, CS, SOG, and Ontario make knives with SK5. It may be similar to 1084 steel.
Strategy9 says: “It appears the only real world difference between sk5 vs sk2 is 30% more carbon content, (give or take)... So in theory, all other manufacturing processes (incl. HT) being equal, SK2 will hold an edge a whole lot better, whereas sk5 will be a whole helluva lot tougher…”
Man! With so many awesome tool steels available today, is this the best blade steel we can buy for a ute??? Where's the 3V, the REX something, the M4, the Z-Tuff, Caldie, Cruwear, Maxamet???
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Common Marketplace Options:
* Stanley Classic? Stanley Heavy Duty? Stanley Carbide?
* Lenox Gold claims a high speed steel (for those really fast cutters out there) and a titanium coating...? Hype? Some reviewers complain they dull quickly...
* Fiskars "CarbonMax" that "stays sharp 24x longer" and are $1 each?
* RapidEdge Serrated?
* HD’s Husky in SK5?
* Some folks swear by Irwin Blue "lasts 3x longer" blades?
* Dewalt Heavy Duty promises 35% sharper, 20% stronger, 75% longer cutting due to hardening...some people say they dull quickly? Dewalt Carbide?
* Craftsman maybe somewhat thicker? USA made? Have seen complaints of fast dulling...
* Dekton, Workpro, Westward boasts SK5 steel?
* Goldblatt SK2M that “lasts 3x longer,” thinner? Several reports of brittleness?
Difficult to find good info; most links are from these so-called “Reviewers” that are just trying to make money off their Amazon links.
Some of the better sources:
http://www.steelnumber.com/en/steel_composition_eu.php?name_id=970
http://zknives.com/knives/steels/steelgraph.php?nm=sk2
https://www.bladeforums.com/threads/a-question-for-steel-nerds.1751122/
I've used the stanley carbide blades, they cut longer than any of the steel ones i've used.