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Can zinc phosphate coating lead to Liquid Metal Embrittlement above 800F?

Zinc plating has lead to LME of austenitic stainless steel and even ferritic steels above 800 F. Can a zinc phosphate coating lead to LME of steel or 4140 HSLA steel bolts? Does anybody have any case histories or articles that prove it will or will not lead to a problem with Liquid Metal Embrittlement?

Tom Laundrie
End User in Petrochemical Industry - Seadrift, Texas, USA
June 3, 2009

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