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Stainless Q&A
May 2024
Q: When performing penetrant testing (PT) of stainless steels, numerous codes and specifications call out for penetrant materials to be sulfur, chloride, and fluoride free. Why is this important and what does it mean?
A: These contaminants may lead to various cracking and corrosion issues in austenitic and duplex stainless steels.
Codes, Standards, and Specifications
AWS D1.6, Structural Welding Code — Stainless Steel, includes in paragraph 8.14.4, “For d..
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