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Rifles, Reloading, Optics, Equipment
Gunsmithing
Case Coloring
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<blockquote data-quote="Trickymissfit" data-source="post: 1439226" data-attributes="member: 25383"><p>reason folks like to machine 8620 is that you get 1020 quality without all the crap 1020 gives you. I bought 8620 by the flat bed truck load for a reason; it machines well and is very stable in the machine process. When making long cuts it rarely moves around on you, but on the downside; it's soft and will not harden on it's own. You can harden parts of it via the carburizing process, and then machine off what you don't want hardened. </p><p></p><p>Only serious chemical coloring I can readily think of is black oxide. I did a lot of black oxide, and it's a basic acid etch. Another process is Tin coating. This stuff is serious, and will probably wear forever. Down side is the color (for some of us anyway). There is another process that comes in a matte black, and it wears like Tin coating. What it actually is, I don't know as it's closely guarded. I really like NP3 chrome, and as I understand it, it can be done in colors. </p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 1439226, member: 25383"] reason folks like to machine 8620 is that you get 1020 quality without all the crap 1020 gives you. I bought 8620 by the flat bed truck load for a reason; it machines well and is very stable in the machine process. When making long cuts it rarely moves around on you, but on the downside; it's soft and will not harden on it's own. You can harden parts of it via the carburizing process, and then machine off what you don't want hardened. Only serious chemical coloring I can readily think of is black oxide. I did a lot of black oxide, and it's a basic acid etch. Another process is Tin coating. This stuff is serious, and will probably wear forever. Down side is the color (for some of us anyway). There is another process that comes in a matte black, and it wears like Tin coating. What it actually is, I don't know as it's closely guarded. I really like NP3 chrome, and as I understand it, it can be done in colors. gary [/QUOTE]
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