Hardness tester

[SmithDoor]

Simple hardness for material hunting.
Leave no marks

This is Simple a stick 12inchs long or 300 mm like paint stick.
And a copy of page wrap around stick for marks. .

I have bag if 3/8 hardened balls. So if loss one anc more to use.

I have different one for shop use a 3/16" balls for thiner gauge.


Dave

 

[GreenTwin]

I have seen one backyard casting person obtain a ball-type hardness tester, and he seems to get accurate results with it, as far as testing his iron castings for chills and hard spots.

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[SmithDoor]

I have seen one backyard casting person obtain a ball-type hardness tester, and he seems to get accurate results with it, as far as testing his iron castings for chills and hard spots.

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I had check class 45 cast iron and would not fit in Rockwell tester.
Rutland had a unit for none destruction testing I purchased and very simple . A 3/16 ball from ball bearings. And a clear tube . It work but easy to lose the small ball so I up size so easier to find the ball. Then used a paint stick good and bad marks . Now my crew could check the hardness too. They set wheel on floor and drop ball. In time a rug around the wheel stop ball from hiding . The pickup ball and check next wheel. We did not check every wheel just in in each batch.
Then when looking materials it came handy too.

Dave

FYI I still have the test disk from Rockwell hardness test I think last for ever