API SPEC 2Y:2006 pdf download

API SPEC 2Y:2006 pdf download.Specification for Steel Plates,Quenched-and-Tempered, for Offshore Structures.
By agreement between the purchaser and the material manufacturer, and when specified on the purchase order, the following Supplementary Requirements shall apply.
Si Ultrasonic Examination
Si.1 Pulse Echo ultrasonic examination shall be petformed on each plate in accordance with ASTM Specification A 578JA 578M Straight-&’am Ultraconic Exanw,ag,on of Plain and Clad Steel Plates for Special Applicas’ioILs. Acceptance Standard—Level A shall be used. Any area where one or more discontinuities produce a continuous total loss of hackwall reflection accompanied by continuous indications on the same plane that cannot be encompassed within a circle whose diameter is 3 in. (75mm) shall be cause for rejection.
Si .2 Examination reports shall be furnished for each plate, the areas with more than SO% loss of hack reflection shall be located on the sketch.
S.1 .3 Optionally. and with prior consultation and agreement. Level C inspection may he used.
S2 Notch Toughness Test at Lower Temperature
S2.i Notch toughness tests shall be made in accordance with the requirements of Section 7 or Supplementary
Requirement S12 and shall meet the requirements of Table 52-I in lieu of the requirements of Table 4 or Supplementary
Requirement S 12.2.
S2.2 Impact tests may be made at temperatures lower than those specified in Table 4 or Supplementary Requirement S 12.2 and other than those specified in Table S2-l. The testing temperature shall be specified by the purchaser and agreed to by the material manufacturer.
S2.3 If the design condition requires a higher energy value, energy values higher than those stated in Table S2- I may be specified subject to agreement between the purchaser and the material manufacturer.
S3 Additional Tension Test
Two tension tests shall he taken from each plate as quenched and tempered. The test specimens shall he taken from a corner of the plate at both ends.
S4 Through-Thickness (Z-Directlon) Testing
S4.1 This Supplementary Requirement coscis tlic pocedttre and acceptance standards for the determination of reduction-of-area using a tension test specimen whose axis is normal to the surfaces of steel plates with nominal thickness /4 in. (19 mm) and greater. I)efinitions shall be in accordance with ASTM A 370.
S4.2 Number of Te’sI Specimens. Two tests shall be taken from each plate as-rolled (parent plate).
54.3 Orienrailo,, of Test Specimens. The longitudinal axis of the test specimens shall be perpendicular to the surface of the plate.
S4.4 Location of Test Specinwns. One test specimen shall he taken at the ingot axis or cast slab longitudinal centerline at its intersection with each edge or end of the plate.
S4.5 Preparation of Test Specimens. Specimens shall be prepared as follows.