1. 2nd Edition: 2019 Winter Standards Meeting
API Standard 6X
2nd Edition: 2019 Winter Standards Meeting
Prepared for: SC 6
Prepared by: Ramón I San Pedro, PE
Date: 23 January 2019
SES Document No.: API6X-2ndEd-EN-PT-06 (Rev A)

2. Content Work Completed Ballot Summary and Resolution Remaining Issues
Path Forward

3. Work Completed Added new Section 4, Failure Modes
Plastic collapse
Local failure
Ratcheting and Progressive Distortion
Service Criteria
Pure Shear
Bearing Stress is per manufacturer
Added standard and non-standard material stress limits, since they were removed from 6A
Continue to allow von Mises stress if permitted by API product specification
Added hydrostatic test capacity to Limit Analysis
Added limitations statements to Limit Analysis

4. Work Completed
Removed all definitions and discussion from Stress Categories and moved them to Annex A
Added to Scope that bolting allowable stresses are given in API product specifications and are outside scope of 6X
Added definitions of elastic analysis, limit analysis, and plastic analysis
General re-organization and clean-up so that body of document includes only requirements

5. Ballot Summary and Resolution
Ballot closed on 29 October 2018
15 Affirmative (68% response rate, 100% affirmative)
0 Negative
7 Did Not Vote
135 comments from 9 organizations, mostly technical
Document was recirculated after comment resolution
9 January 2019: This is notification that the final document recirculation for comment has closed for the proposed API 6X, 2nd Edition.
There were no additional comments submitted over what was generated through the ballot system.
The document will now proceed to publication.

6. Remaining Issues
It has been proposed to re-instate much of the original Introduction that gave background for document
Note on impact values and brittle fracture has been proposed
Note on minimum through-thickness properties has been proposed
Note on possible de-rating of some materials below 250F (e.g. duplex stainless steels) has been proposed

7. Path Forward
Finalize text for few remaining items, if any are to be implemented
Proceed to publication

8. Thank You!

9. Limitations of This Report
This report is prepared for the sole benefit of the Client, and the scope is limited to matters expressly covered within the text. In preparing this report, Stress Engineering Services, Inc. (SES) has relied on information provided by the Client and, if requested by the Client, third parties. SES may not have made an independent investigation as to the accuracy or completeness of such information unless specifically requested by the Client or otherwise required. Any inaccuracy, omission, or change in the information or circumstances on which this report is based may affect the recommendations, findings, and conclusions expressed in this report. SES has prepared this report in accordance with the standard of care appropriate for competent professionals in the relevant discipline and the generally applicable industry standards. However, SES is not able to direct or control operation or maintenance of the Client’s equipment or processes.
Rev
Date
Description
Originator
Checker
Reviewer A
23-Jan-2019
Issued for review
R San Pedro
SES Document No.: API6X-2ndEd-EN-PT-06