Thread: Rockwell C Hardness Tester

Hi All,

They say lightning doesn't strike twice in the same place, well, I was lucky enough to be in the right place at the right time (again) and picked up an Avery Model 6402 Rockwell Hardness tester.

It comes with calibration standards, new calibrated diamonds, and full range of accessories.





There is a bench that came with it, as well as original manuals and brochures.

Now, I really have to get to work and get the heat treatment furnace finished!

Regards
Ray

Finally, something I have no use for.(yet)
Real heat treating is a long way down my list of things to do.
Still nice pick up Ray, looks well looked after, I guess that shouldn't be a surprise.
Stuart

Originally Posted by Stustoys

Finally, something I have no use for.(yet)

Stuart

Don't laugh, I'm struggling to find a place for it...

Regards
Ray

Ray, If you keep that up I'll send you a picture of my shed. You have plenty of room left.
Stuart

Nice find Ray, I've been looking at some myself. Are you building your own oven?

Pete

Hi Stuart,

Don't worry, I'm catching up.. (but I can still see the floor!)

Hi Pete,

I've started and stopped several times now on building a heat treatment furnace, I got a kit of parts from AA kilns a while back, http://aakilns.com.au/index.htm It's going to be electric, but only 2.4Kw. with lots of insulation and a bit of care I hope to get up to 1100C+, if I need to I can double up on the Kanthal heater elements. standard PID controller for a start, but I'm planning on a custom controller so I can program more complex cycles. It's been a while since I last looked at furnace designs, so nothing is "locked in" at this stage. Vacuum and atmospheric control would be nice, but probably out of the project scope at the moment.

Regards
Ray

The furnaces I've been looking at Ray were 2400 W and good for 1000+ so I expect you should be able to achieve that. I get the impression the service life of various components starts to degrade up that high though. Nobody has said it in as many words, but just a feeling.

The PID is a good idea. I did some development work for a PID retailer based in the US to fit them to espresso machines (of all things) a few years back and love them. It's amazing how tight they can hold a temp once they learn their way around what they're controlling!

Pete

Nice score Ray, we have a slightly (only slightly) more recent model (which I prefer to use) at work as well as others that connect to computers etc. The real bonus with your catch is the calibration gear which alone is worth many hundreds of $. The calibration stuff has been lost for our older machine at work and I have to calibrate it by a round about way which is a PITA. What we do have at work are half a dozen computer controlled furnaces including one that goes up to 1600ºC.

I will echo everyone else in saying nice score ray.

Dave

hi Ray,
I'm a new member to the forum and as such feel a little unsure about asking for information and help off the cuff.
I am making a knife blade from damascus steel I made and once its shaped I will need to harden and temper and check rockwell hardness before I polish and fit the handle.
My question is, would you be in the position to test the rockwell hardness for me, or maybe suggest where I could get it done--I live at the Gold Coast. regards Brian