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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
17-4 PH Stainless cut rifled barrels
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<blockquote data-quote="Trickymissfit" data-source="post: 453091" data-attributes="member: 25383"><p>I don't think it's the hardness of the steel as much as it is in the method. If you can machine 330 or 349 stainless then you can do this. Was trying to remember what we used for coolant yesterday, but I just can't remember. I do know it was different on the lathes than it was on a machine center. With a grinder we just used the same stuff, but made a wheel change. </p><p> </p><p> Find a quart of standard low grade de-ionized water and put a block of hardened stainless in it. You'll see rust start to form with in 14 days. If it's a high grade de-ionized water you'll see rust in less than a week. But if you take a piece of 300 series steel and do the same; it may never rust. De-ionized water is often used in labs to accellerate rust, and if the item will rust the water will bring it on.</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 453091, member: 25383"] I don't think it's the hardness of the steel as much as it is in the method. If you can machine 330 or 349 stainless then you can do this. Was trying to remember what we used for coolant yesterday, but I just can't remember. I do know it was different on the lathes than it was on a machine center. With a grinder we just used the same stuff, but made a wheel change. Find a quart of standard low grade de-ionized water and put a block of hardened stainless in it. You'll see rust start to form with in 14 days. If it's a high grade de-ionized water you'll see rust in less than a week. But if you take a piece of 300 series steel and do the same; it may never rust. De-ionized water is often used in labs to accellerate rust, and if the item will rust the water will bring it on. gary [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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17-4 PH Stainless cut rifled barrels
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