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API 6A718 Work Group on Addition of Nickel Base CRAs

API 6A718 Work Group on Addition of Nickel Base CRAs. API SC6 Winter 2012 Meeting Paul Maxwell. Objective.

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API 6A718 Work Group on Addition of Nickel Base CRAs

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  1. API 6A718 Work Group on Addition of Nickel Base CRAs API SC6 Winter 2012 Meeting Paul Maxwell

  2. Objective • Provide requirements for Age Hardened Nickel Base alloys used in the manufacture of API 6A or ISO 10423 pressure-containing and pressure-controlling components to assure they are not embrittled by the presence of an excessive level of deleterious phases and meet minimum metallurgical quality requirements. • These additional requirements include detailed process control requirements and detailed testing requirements.

  3. Members

  4. Meetings • September 27, 2011 • November 29, 2011

  5. Progress

  6. Chemical Compositions

  7. Manufacturing Requirements

  8. Heat Treatment Procedures

  9. Macro & Micro Etchants

  10. Tensile Requirements

  11. Impact Toughness Requirements

  12. Hardness Requirements

  13. To Be Done • Review of Chemistries, Heat Treat Procedures and Mechanical Properties • Decide Whether Mechanical Property Requirements Need to be Size Dependant • Develop an Appropriate Hardness Conversion Table • Develop Grain Size & Microstructure Requirements including Photomicrographs for Reference • Determine Whether Additional Testing will be Required for High Strength 718

  14. Next Meeting Anticipated to be in April

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