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Rifles, Reloading, Optics, Equipment
Reloading
Salt Bath Annealing Doesn't Work! by AMP
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<blockquote data-quote="J E Custom" data-source="post: 1636834" data-attributes="member: 2736"><p>At first when i read this article, I thought it might be a product war.</p><p></p><p> Being somewhat a metallurgist and having experience with hardness test of all kinds, I found it to be very detailed and well done. the results were also well documented and I believe It to be a valid test.</p><p></p><p>I did a similar test on new factory brass using the Brinell hardness test method because it is more commonly used for softer materials and much cheaper. with this test I discovered that many of the new factory cases were never annealed as the last step to save money like the after market cases are.</p><p></p><p><a href="https://www.hardnesstesters.com/test-types/brinell-hardness-testing" target="_blank">https://www.hardnesstesters.com/test-types/brinell-hardness-testing</a></p><p></p><p>I don't own a salt bath system so I personally cant attest to the quality of the anneal and only testing the system myself would convince me one way or the other. I did question the max temperature used but thought time could render this temperature good enough.</p><p></p><p>There was a mention of water quenching and I water quench all of my cases for the most consistent anneal. The reason is simple, it stops the anneal in the same location of the case, cases that are allowed to cool normally will be annealed, but based on where they land or the temperature they are annealed the annealing softness can migrate farther back and be at different positions on the case. Consistence is the name of the game for quality annealing.</p><p></p><p>I know people that have and use this system and can only recommend that they have some hardness test done to verify the results of their annealing.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1636834, member: 2736"] At first when i read this article, I thought it might be a product war. Being somewhat a metallurgist and having experience with hardness test of all kinds, I found it to be very detailed and well done. the results were also well documented and I believe It to be a valid test. I did a similar test on new factory brass using the Brinell hardness test method because it is more commonly used for softer materials and much cheaper. with this test I discovered that many of the new factory cases were never annealed as the last step to save money like the after market cases are. [URL]https://www.hardnesstesters.com/test-types/brinell-hardness-testing[/URL] I don't own a salt bath system so I personally cant attest to the quality of the anneal and only testing the system myself would convince me one way or the other. I did question the max temperature used but thought time could render this temperature good enough. There was a mention of water quenching and I water quench all of my cases for the most consistent anneal. The reason is simple, it stops the anneal in the same location of the case, cases that are allowed to cool normally will be annealed, but based on where they land or the temperature they are annealed the annealing softness can migrate farther back and be at different positions on the case. Consistence is the name of the game for quality annealing. I know people that have and use this system and can only recommend that they have some hardness test done to verify the results of their annealing. J E CUSTOM [/QUOTE]
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Salt Bath Annealing Doesn't Work! by AMP
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