scope:

FOREWORD

The Publications in this series of specifications for 90/10 copper nickel tubes, flanges and fittings are as follows:

Publication No. 144 Tubes: seamless and welded

Publication No. 145 Flanges: composite and solid

Publication No. 146 Fittings

The specified outside diameters of tubes, in sizes up to and including 20 in/508 mm, covered by this specification have been selected from BS 2871 : Part 2: 1972 "Copper and copper alloys - tubes (seamless) for general purposes: table 3, Preferred sizes of tubes for pipelines for shipbuilding and other engineering purposes". The specified outside diameters of the remaining sizes covered by this specification have been selected from BS MA 60 "Summary and application of copper and copper alloy tubes for ships' pipework systems." The wall thicknesses have been selected to cover the specific requirements of the oil and oil related industries.

This specification specifies the requirements for seamless and seam-welded tubes for offshore and associated piping installations based on BS MA 60, DIN 86007 and ANSI/ASME B31.3.

The table of tube outside diameters is also based on ISO 274 up to and including 16 in/419 mm.

The titles of other publications referred to in this publication are listed in Appendix A.

NOTE: The reference to "tube" rather than "pipe" in this specification is based on the usage of this word in existing copper and copper alloy standards.