API Specification 4F

Specification for Drilling and Well Servicing Structures

This specification states requirements and gives recommendations for suitable steel structures for drilling and well-servicing operations in the petroleum industry, provides a uniform method of rating the structures, and provides two product specification levels (PSLs).

This specification is applicable to all new designs of all steel derricks, masts, guyed masts, substructures, and crown blocks.

Among other changes, this edition updates the wind load design requirements.

Third Edition  
January 2008
Price: $90.00
45 Pages

Available through IHS:

Phone Orders: 1-800-854-7179 (Toll-Free in the U.S. & Canada)
                      303-397-7956 (Local and International)

Fax Orders:303-397-2740

Online Orders: www.global.ihs.com

API Members receive a 30% discount where applicable.