- Joined
- Mar 17, 2024
- Messages
- 43
I guess I need to hurry up and get the kiln modified.
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Firing pin steel selection
- Thread starter Metaloxide
- Start date
- Joined
- Apr 23, 2018
- Messages
- 6,630
A small part like that is a quick and easy propane torch job to dull red with an oil quench, followed by an anneal to straw color and a slow cool.
You can get hardness testing files that will bracket your heat treat fairly conveniently into a Rockwell number range.
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www.amazon.com
Those files are handy. I bought a set years ago. If you buy them under the japanese name tsubosan they're about 50% less:
They seem expensive, but not if you look at all the other options for testing hardness to a reasonably narrow range. Getting it to within 5 is more than enough accuracy for a home shop and to give you some peace of mind.
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www.amazon.com
They seem expensive, but not if you look at all the other options for testing hardness to a reasonably narrow range. Getting it to within 5 is more than enough accuracy for a home shop and to give you some peace of mind.
They're also usable in a lot of cases that a 'real' hardness tester isn't. e.g. you can test thin material, tubes, and other shapes that would not be intrinsically rigid - a requirement for a conventional rockwell tester.
GsT