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Ted Mooney, P.E. RET
Pine Beach, NJ

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Hydrogen Embrittlement of Galvanized Steel

I am doing a failure analysis on a galvanized quench and tempered steel pipe(.22C/1.32Mn). I have read where the pickling/acid bath can cause hydrogen embrittlement in high-strength steels. Is it common to see such failure due to hydrogen embrittlement in quench and tempered steels (Yield strength = 125 ksi)?

Acid bath: 10% Sulfuric acid, 160F

David Reinhart
- Longview, Texas
2000

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