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Hydrogen Embrittlement Relief (Baking) of Steel Parts
- Aerospace Material Specification
- AMS2759/9E
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This specification covers the requirements for embrittlement relief (baking) of heat treated steel parts to remove hydrogen infused during plating and certain other chemical processing such as stripping, chemical milling, pickling, and etching.
Rationale
AMS2759/9E results from a Five-Year Review and general revision of AMS2759 and its slash specifications.
Ordering information: In addition to that listed in AMS2759, the purchaser shall supply the following information to the plating processor:
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AMS2759/9E
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Final heat treat condition:
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Minimum tensile strength, as applicable; or
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Minimum hardness, as applicable; or
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PH stainless steel temper, as applicable.
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Tempering temperature used for the following types of parts:
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Carburized or carbonitrided parts.
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Parts fabricated from music wire, 52100, 440C, or other alloys tempered below 375 °F (191° C).
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Recommended Content
| Aerospace Material Specification | Stress Relief of Steel Parts |
| Aerospace Material Specification | Passivation of Corrosion Resistant Steels |
| Aerospace Material Specification | Steel Sheet, Strip, and Plate 1.05Cr - 0.55Ni - 1.0Mo - 0.12V (0.42 - 0.48C) (D6AC) Consumable Electrode Vacuum Melted, Annealed |
Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Table 1 | Minimum bake soak time (hours) at 375 °F (191 °C) | |
| Table 2 | Minimum bake temperatures and times for high alloy, ultra-high-strength steels, and for case hardened surfaces |
Issuing Committee
AMS B Finishes Processes and Fluids Committee
The committee of Finishes, Processes, and Fluids, AMS Committee B, shall prepare, coordinate, and revise documents related to processing technology, such as plating, brazing, coatings and compounds, through the participation of process suppliers, users, and interested government agencies. Committee activities shall provide a forum for the cooperative interchange of ideas and experience of the participants, resulting in the publication of specifications that embody sound, established aerospace industry practices and requirements to serve the suppliers and customers of aerospace processes.
Reference
| Number | Title |
|---|---|
| AMS2649 | Etch Inspection of High Strength Steel Parts |
| AMS2750 | Pyrometry |
| AMS2759 | Heat Treatment of Steel Parts, General Requirements |
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