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Recent content by Joe1234567
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smut after passivation
Hello, I have processed one part to Type 7 (20-25% nitric acid) along with a test slug of same material, 410SS. I processed 14 parts of the same material, and all parts smutted heavily. What caused this? Why did one part process normally but 14 did not? Temperature was within 5 degrees of...- Joe1234567
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- Forum: Chemical coatings engineering
