NOTE: The grade designations used herein comprise the letter
U followed by the first two digits of the specified minimum yield
Coverage. This specification covers ultra
high-test heat treated line pipe in size 6% inch O.D. and larger in
grades U80 and U100 and intermediate grades exceeding X70. The
chemical composition and certain physical properties of
intermediate grades are subject to agreement between the purchaser
and manufacturer. The agreed upon requirements must be consistent
with the corresponding requirements for these grades.
Policy. American Petroleum Institute (API)
specifications are published as an aid to procurement of
standardized equipment and materials. These specifications are not
intended to inhibit purchasers and producers from purchasing or
producing products made to specifications other than API, and
nothing in any API specification is intended to in any way inhibit
te purchase of products from companies not authorized to use the
Nothing contained in any API specification is to be constructed
as granting any right, by implication or otherwise, for the
manufacture, sale or use in connection with any method, apparatus
or product covered by letters patent, nor as insuring anyone
against liability for infringement or letters patent.
API specifications may be used by anyone desiring to do so, and
every effort has been made by the institute to assure the accuracy
and reliability of the data contained in them. However, the
Institute makes no representation, warranty or guarantee in
connection with the publication of any API specification and hereby
expressly disclaims any liability or responsibility for loss or
damage resulting from their use, for any violation of any federal,
state or municipal regulation with which an API specification may
conflict, or for the infringement of any patent resulting from the
use of an API specification.
The use of the API monogram is a warranty by the manufacturer to
the purchaser that the manufacturer has obtained a license to use
the monogram and, further, that the product which bears the
monogram, conforms to be applicable API specification. However, the
American Petroleum Institute does not represent, warrant or
guarantee that products bearing the API monogram do in fact conform
to the applicable API standard or specification.
* The API monogram— API —is a registered trademark of the
American Petroleum Institute.