JFAK 7 (w COMMENTARY!) - Stainless San Mai

Just Forging a Knife. JFAK 7 w commentary.
A 410 stainless steel jacket is forge welded to a 1084 core and a knife is shaped. To see the forging of the knife at the beginning of this video go to: • JFAK 6 - The Bowie Kit...
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[@nicholaskillmeier4895]

"Karl Andersen uses 410 and that's all I needed to know..." - nailed it. I love his work too

[@GreenBeetle]

he's the man

[@erikcourtney1834]

He’s amazing with stainless San mai. I’ve learned a lot from him also.

[@tybertimus]

I don't see or hear much about stainless san-mai, so it's nice to have the commentary on this one.

[@mayhem1988]

I've never had any issues forging stainless san-mai on edge, in fact last time I made some I goofed up and damn near folded the billet in half with the power hammer when forging on edge, I unfolded it and carried on, no problems. My process is to grind the stainless clean and spray it with WD40 immediately to prevent oxides forming, grind the core steel clean and then seam weld the billet with a TIG welder but no filler rod, cutting a small slit in one end with a 1mm grinder disc before throwing in the forge and welding up. High heat, lots of small reductions in thickness with good soak times between heats.

[@beezo2560]

"Carl Anderson uses 410 and that's all I need to know." GB's knows wisdom when he hears it. Beautiful knife. The handle is a 10+.

[@GreenBeetle]

ty sir!

[@robertshelton3796]

YT has stopped pushing over half my subs to my main page replacing them with "shorts" or awful gen AI content and even if I ditch the shorts I don't get more of the content I'm looking for. I had to just check my subs list for updates manually now and I'm sad I missed so many of your vids. Saw the "for the haters" vid man you don't owe anyone an explanation but thanks for doing it. FWIW I like that you do a with and without commentary upload for this one (I'm a w/commentary guy) hopefully drives more views.

[@Jettonx]

Commentary awwwyeaaahh!

[@osirisatot19]

You are brave for doing stainless steel san mai. Glad the second one came out so nice, and I love the handle on the knife at the beginning of the video.

[@GreenBeetle]

Ty

[@erikcourtney1834]

Nice looking piece but if it was me I would have left the nickel sheet out. It’s a pretty and a distinct line between the the layers. But the carbon migration line is what makes stainless San mai so beautiful. 304ss works fine if done right. But it’s nice to have a hardenable sleeve. It also has a better carbon migration line. I use both 410 and 304. 304 I get for free so that’s why I use it😉

[@GreenBeetle]

I've used 304 a few times. If its free there is not a better option. I think 410 hardens from 1700 F so it's still soft after the 1480 F quench for the core. Ty, sir!

[@Pablo668]

Nice work as always. This episode of Green Beetle was brought to you by the letters, F, K and the word, Delamination...

[@GreenBeetle]

LOL

[@MCsCreations]

Stunning knife, Steve! Really amazing work!!! 😃 But yeah, living and learning. Those who don't learn anymore... Well... You know. Anyway, stay safe there with your family! 🖖😊

[@brysonalden5414]

Good for you, learning and keeping at it. Obviously SS has its own learning curve. Looking forward to the next episode, especially the handle. Thanks for posting this.

[@BradGryphonn]

Thank you for the commentary. Cheers, mate.

[@bb-ko2nm]

Very nice effort, always good you show the fails too, thanks!

[@AbsurdSanity]

always enjoy your commentary

[@krissteel4074]

410SS where I am is extraordinarily expensive here and hard to get in the dimensions I'd like to work with for some reason, so I've not had much of an excuse to buy or import it from overseas. Ran a few one-off experiments with other types of stainless but not really had any luck with them, some almosts and a few nearlys but not really anything I'd seen fit to progress Look forward to seeing this one finished

[@GreenBeetle]

Hey, thanks!

[@jcubetube3778]

I use 410 with 80CRV2, or 1084/1095 and have had success with them all

[@rhodie33]

Nice work.

[@RRINTHESHOP]

Nice recovery, sometimes that is what it takes. Well done, thanks for sharing.

[@richardbranton190]

Thanks!

[@GreenBeetle]

Ty!

[@mobilegamersunite]

Beautiful 😍

[@timberanvil3788]

Damn beauty right there!

[@zachd2305]

I use aeb-l and 154cm or aeb-l and 304 for stainless Damascus depending on what the project is. Knives typically get the 154 while jewelry gets the 304

[@GreenBeetle]

no idea you could use 154, nice!

[@zachd2305]

@GreenBeetle yup. 154 stays bright while aeb-l etches dark. Id be happy to send you a billet if you wanna make a blade

[@noneyabidness9644]

That's the single biggest delamination I've ever seen. (The kukri split completely down the spine.) The final product was worth it. Great looking blade. Nicely done.

[@GreenBeetle]

Looks like a delam but that was the core steel pulling apart down the middle. The welds were solid.

[@seanbrondstetter2987]

GOMAI !!!!! but whatever, great job on round two

[@stevealford230]

STEVE! *as you can see here, I've typed the name "Steve" in all caps to say howdy to Steve*

[@GreenBeetle]

STEVE - O!

[@the_sharp_carpenter]

Ive done AEBL jacket over nickle wirlth a core of M4 forge welded at 1950°f i think time at temp is more important than temp. Give a listen to the Artisans of steel podcast with Mareko and Will Brigham 👌

[@GreenBeetle]

wow m4! nice work

[@jasonvliet-odonataknifeworks]

Hey Steve, I have a fastback with a glass platen also…is there a reason you run the platen proud of the wheels instead of flush? Just curious.

[@jblueforge3131]

You are never supposed to run the Platinum flush with the wheels because when you use the flat flattened on something big and go up and down with it the wheels will inevitably give you scratches that you didn't plan on

[@jasonvliet-odonataknifeworks]

@@jblueforge3131 makes sense. Never ran into that issue because I try to use my SGA.

[@louisspataro278]

So is grinding nickel a problem? I know that some people are badly effected by it. Just curious.

[@GreenBeetle]

it is very bad for your lungs, wear protective gear and ventilate your work area properly.

[@noneyabidness9644]

I was wondering why you weren't saying anything...then I see a double release. 😂🤣😂

[@stefanwild326]