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API 6A718 Work Group on Addition of Nickel Base CRAs

This project aims to set quality standards for Nickel Base alloys used in API 6A pressure components to ensure they are not embrittled. The requirements cover detailed process control, testing, and metallurgical quality to meet industry standards.

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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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