by Todd
(michigan)
could you explain the chillring test?
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a chill ring usually refers to a backing ring that amounts to a rolled piece of sheet usually about 1/8" thick.
it is used instead of an open root for fitting and welding pipe.
its actually a little easier than an open butt root.
usually a 7018 rod is used for the root and all other passes.
and usually its given in the 6g or 45 degree position aka arkansas bellhole
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