API 2Z : 2005

1 INTRODUCTION
  1.1 Purpose
  1.2 Scope
  1.3 General Requirements
2 REFERENCES
3 QUALIFICATION FOR HAZ TOUGHNESS
4 DELAYED CRACKING TEST
  4.1 Purpose
  4.2 Controlled Thermal Severity (CTS) Test
  4.3 The Y-Groove Test
  4.4 Requirements
  4.5 Commentary
5 RE-QUALIFICATION
APPENDIX A SUGGESTIONS FOR ORDERING API RP 2Z PRE-PRODUCTION
           QUALIFICATION

Specifies requirements for Preproduction qualification, by special welding and mechanical testing, of specific steelmaking and processing procedures for the manufacture of steel of a specified chemical composition range by a specific steel producer.