API RP 2Z-ed.4

Anotácia textu normy API RP 2Z-ed.4 :

API RP 2Z, 4th Edition, September 2005 - Recommended Practice for Preproduction Qualification for Steel Plates for Offshore Structures

This Recommended Practice covers 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. This is a Recommended Practice for material selection and qualification, but not for the performance of production weld joints. This Recommended Practice was developed in conjunction with, and is intended primarily for use with, API Specifications 2W and 2Y. However, it may be sued as a supplement to other material specification s (e.g., API Specification 2H) if so desired.