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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
High Velocity Throat Erosion
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<blockquote data-quote="mcdil" data-source="post: 2587019" data-attributes="member: 112571"><p>The only thing that comes quickly to mind would be a PM'd D2 Tool Steel with the third tempering cycle conducted in concert with a plasma nitride. Now, how on earth to do anything to it for engraving and chamber reaming would be quite interesting. At least the chamber could be r eamed with a diamond grinder and honed as such. Have fun with the cost of that tooling. Broaching, ha, ha.</p><p></p><p>D2 is designed to perform when red hot, so I don't think it would be susceptible to fire cracking, unless it chemically doesn't play well with nitrocellulose and nitroglycerine at superheated levels, but the nitriding helps here as well. Not too sure in that regard. Either way, complete through harden ability is off the chart, and the PM process would ensure charpies are doubled over standard D2 bar.</p><p></p><p>I think the only manufacturing method would be to understand the density and associated growth rate from testing samples, then premachining accordingly, then heat treating. After heat treating, you can't do anything to D2 steel, practically anyway.</p></blockquote><p></p>
[QUOTE="mcdil, post: 2587019, member: 112571"] The only thing that comes quickly to mind would be a PM’d D2 Tool Steel with the third tempering cycle conducted in concert with a plasma nitride. Now, how on earth to do anything to it for engraving and chamber reaming would be quite interesting. At least the chamber could be r eamed with a diamond grinder and honed as such. Have fun with the cost of that tooling. Broaching, ha, ha. D2 is designed to perform when red hot, so I don’t think it would be susceptible to fire cracking, unless it chemically doesn’t play well with nitrocellulose and nitroglycerine at superheated levels, but the nitriding helps here as well. Not too sure in that regard. Either way, complete through harden ability is off the chart, and the PM process would ensure charpies are doubled over standard D2 bar. I think the only manufacturing method would be to understand the density and associated growth rate from testing samples, then premachining accordingly, then heat treating. After heat treating, you can’t do anything to D2 steel, practically anyway. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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High Velocity Throat Erosion
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