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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 Summer 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 Summer 2012 Meeting Paul Maxwell

  2. Objective • Provide requirements for Age Hardened Nickel Base alloys used in the manufacture of API 6A 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. Participants

  4. Meetings • September 27, 2011 • November 29, 2011 • April 18, 2012

  5. Progress Definition of Scope and Purpose Chemical Compositions Manufacturing Requirements Heat Treatment Procedures Hardness Requirements

  6. To Be Done • Finalize Mechanical Property Requirements • Test Orientation • Properties for Sizes >10 in. • Develop an Appropriate Hardness Conversion Table • Develop Hardness Re-Test Procedure • Develop Grain Size & Microstructure Requirements including Photomicrographs • Determine Whether Additional Testing will be Required to Validate Requirements

  7. Next Meeting Anticipated to be in AugustGoal to Ready for Ballot January 2013

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