API Spec 2Y-2007 Specification for Steel Plates, Quenched-and-Tempered, for Offshore Structures

American Petroleum Institute (API). First Edition,December 2006. Effective Date: June 2007. 26p. This specification covers two grades of high strength steel plate for use in welded construction of offshore structures, in selected critical portions which must resist impact, plastic fatigue loading, and lamellar tearing. Grade 50 is covered in thicknesses up to 6 in. (150 mm) inclusive, and Grade 60 is covered in thicknesses up to 4 in. (100 mm) inclusive.