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Forums10
Topics38,374
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Most Online1,131 Jan 21st, 2024
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Joined: Sep 2011
Posts: 150 Likes: 2
Sidelock
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Sidelock
Joined: Sep 2011
Posts: 150 Likes: 2 |
Brent, don't know. never tried that high a temperature. With my nitre fertilizer pot, get a nice dark blue on screws and springs at about 700F. Lower the temperature to about 600F to get the pidgon egg blue some people like. Chuck
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Joined: Jan 2004
Posts: 6,670 Likes: 372
Sidelock
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Sidelock
Joined: Jan 2004
Posts: 6,670 Likes: 372 |
Yes, to get the blues, lower temps. I have done that many times in lead and in nitre, but I wasn't looking for blues like that. I was looking for that charcoal color that Fred got. I did not quite get there. As far as I'm concerned, I won't get there with lead. Maybe nitre, but I suspect, it will have to be the right way - with charcoal. No shortcuts.
_________ BrentD, (Professor - just for Stan)
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Joined: Dec 2001
Posts: 6,980 Likes: 396
Sidelock
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Sidelock
Joined: Dec 2001
Posts: 6,980 Likes: 396 |
You get a nice black in niter salts at about 825 degrees, I think 880 is too hot. Steve
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Joined: Feb 2009
Posts: 7,443 Likes: 204
Sidelock
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Sidelock
Joined: Feb 2009
Posts: 7,443 Likes: 204 |
....The pot got to just under 900F. About 880F or a titch higher. That's as high as I was willing to go....
....At the 20 minute mark....
....I would not want a whole action to deal with like this.... If the goal is to put a final finish on an entire action, a decision should be made ahead of time on the preference to retain any hardness that was present and considered desirable.
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Joined: Jan 2004
Posts: 6,670 Likes: 372
Sidelock
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Sidelock
Joined: Jan 2004
Posts: 6,670 Likes: 372 |
Steve, I'll back down and give that a try.
It is worth noting that a highly polished mould sprue plate turns pretty nicely black and it certainly never gets to even 800F, but it takes a long time.
_________ BrentD, (Professor - just for Stan)
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