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Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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Steel Spring, Zinc Plated, Hydrogen Embrittlement

Presently making a spring(4340, R/C 43-45)that is Zinc-plated. The process calls for a bake subsequent to the plating process to reduce hydrogen embrittlement. Is this step necessary on a spring with a cross-section of .340" x .960"?

Frank Borcherding
Mfg. of Test Equip. - Largo, Florida, USA
2004

Yes spring steel requires baking as soon as possible after plating.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2004

The bake is only required if you do not want a high number of failures. So, is it really required? That is your decision.

James Watts
- Navarre, Florida
2004

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