1、 ABSGUIDE FOR THE CLASSIFICATION OF DRILLING SYSTEMS .2012 1 GUIDE FOR THE CLASSIFICATION OF DRILLING SYSTEMS SEPTEMBER 2012 NOTICE NO. 1 February 2014 The following Changes become EFFECTIVE AS OF 1 JANUARY 2014. (See http:/www.eagle.org for the consolidated version of the Guide for the Certificatio
2、n of Drilling Systems 2011, with all Notices and Corrigenda incorporated.) Notes - The date in the parentheses means the date that the Rule becomes effective for new construction based on the contract date for construction, unless otherwise noted. (See 1/7.13.2.) SECTION 6 MATERIALS FOR DRILLING SYS
3、TEMS AND EQUIPMENT 9 Fabrication Considerations (Revise Paragraph 6/9.3, as follows:) 9.3 Forming (2014) Forming of materials utilized in drilling equipment and/or components are to comply with the following requirements: i) In general, for steel components, forming at temperatures between 205C (400
4、F) and 425C (800F) is to be avoided. ii) Where degradation of properties is unavoidable, complete post forming heat treatment may be required. iii) Suitable supporting data is to be provided to indicate compliance with the specified properties. iv) For materials with specified toughness properties t
5、hat are to be formed beyond 3% strain* on the outer fiber, data are to be provided indicating that the toughness properties meet the minimum requirements after forming. v) After straining, specimens used in toughness tests are to be subjected to an artificial aging treatment of 288C (550F) for one hour. * Note: For details, see 2-4-1/3.13 of the ABS Rules for Materials and Welding (Part 2).
