Hardness testing?

[Babbott213]

Has anyone ever used a durometer for determining hardness of lead? Such as a Shore D Durometer? I use a durometer a lot for work and wondered if there was a crossover between the Shore D and the Brinell scale. I know my Missouri Bullets are coming in at 67 Shore D hardness, just not sure what the Brinell hardness is.


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[kungfustyle]

Missouri Bullets are either 12 or 18 brinell. Cowboy 12, Magnum 18. http://missouribullet.com/results.php?category=5&secondary=13 Look at the first two.

[Babbott213]

Missouri Bullets are either 12 or 18 brinell. Cowboy 12, Magnum 18. http://missouribullet.com/results.php?category=5&secondary=13 Look at the first two.

Ah, thanks! I had forgotten that the hardness was listed on the web page. I may have to come up with my own conversion chart for Shore D durometer hardness then.


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[kungfustyle]

Good idea. Make your owne. Start with known alloys like: stick on(6), clip on(12), lino-type(22) etc. won't take long.

[6622729]

Since I started using the pencil method of hardness testing, nothing else is worth my time. The pencils are so easy and repeatable!

[Yodogsandman]

Measuring hardness is just comparing different alloys for us boolit casters. Any laboratory type tester will give much more positive tests than the testers made for casters. So, measuring hardness levels of known alloys with that equipment and recording the results for comparison is a good idea. When testing, take multiple measurements and average them for each alloy tested.