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Topic
Welding Industry
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Metallurgy
/ Blueish color observed after flush grinding in SMAW 7018 .
By
Abdul Azeem
Date
02-21-2018 17:15
Dear Friends,
I observe Dark blueish color in the welds ,SMAW 7018 , ASTM A500GR C .
Is it because of excess heat or because of reaction with atmospheric gases ???
Either way, Is it considered a problem or not????
By
Lawrence
Date
02-21-2018 19:31
"after flush grinding"
My guess is that the grinding simply made the metal hot enough to oxidize slightly. If this is the case there is no problem.
You could try grinding a similar piece that is unwelded with the same pressure, it will likely also have a blue tint.
It should easily brush off.
By
Abdul Azeem
Date
02-22-2018 07:49
Thanks for the wisdom Lawrence.
Topic
Welding Industry
/
Metallurgy
/ Blueish color observed after flush grinding in SMAW 7018 .
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