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1、BRITISH STANDARD MARINE SERIES CONFIRMED JULY 1999 BS MA 60:1986 Summary and application of copper and copper alloy tubes for ships pipework systems UDC 629.12.06:621.643.2-034.3:669.3-462 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:22:41 GMT+00:00 2006,
2、Uncontrolled Copy, (c) BSI BS MA 60:1986 This British Standard, having been prepared under the direction of the Shipbuilding and Marine Standards Committee, was published under the authority of the Board of BSI and comes into effect on 31 March 1986 BSI 02-2000 First published July 1974 First revisi
3、on March 1986 The following BSI references relate to the work on this standard: Committee reference SME/1 Draft for comment 83/76284 DC ISBN 0 580 14901 3 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Shipbuilding and Marine Standards
4、Committee (SME/-) to Technical Committee SME/1 upon which the following bodies were represented: BNF Metals Technology Centre British Non-ferrous Metals Federation British Ship Research Association British Shipbuilders British Steel Industry Department of Transport (Marine Directorate) General Counc
5、il of British Shipping Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:22:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS MA 60:1986 BSI 02-2000i Contents Page Committees responsibleInside fro
6、nt cover Forewordii 1Scope1 2Classification1 3Method of manufacture1 4Materials and applications1 5Temper conditions and hardness2 6Tube sizes2 7Tolerances2 8Pressure and temperature limitations2 9Tests by tube manufacturers2 10Marking2 11Packaging and protection2 Appendix A Information to be suppli
7、ed by the purchaser7 Table 1 Temper conditions and hardness1 Table 2 Application of copper and copper alloy tubes3 Table 3 Limitations of use for group A tubes4 Table 4 Limitations of use for group B tubes5 Table 5 Sizes and minimum thicknesses of copper and copper alloy tubes6 Publications referred
8、 toInside back cover Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:22:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS MA 60:1986 ii BSI 02-2000 Foreword This revision of BS MA 60, which was based on a proposal from the British Ship Research Association, ha
9、s been prepared under the direction of the Shipbuilding and Marine Standards Committee. It supersedes BS MA 60:1974 which is withdrawn. In present day shipbuilding, the use of copper tubes is usually confined to piping services in ships accommodation areas or for instrumentation and control systems
10、in the machinery spaces. Copper alloy tubes are predominantly used on sea-water services where the useful life of copper tubes is limited because of the materials susceptibility to impingement attack arising from high water velocities and excessive turbulence. The metric revision of BS 2871 “Copper
11、and copper alloys. Tubes” has been published in three Parts as follows: Part 1: Copper tubes for water, gas and sanitation; Part 2: Tubes for general purposes; Part 3: Tubes for heat exchangers. of which Parts 1 and 2 are relevant to this marine application standard. The size range of tubes covered
12、by this standard has been extended above the limit of 508 mm outside diameter, given in BS 2871-2, to a maximum of 1 820 mm outside diameter and aligns with the size range of flanges specified in BS 4504-2. The outside diameters of these larger bore copper alloy tubes correspond to the outside diame
13、ters of similar sized carbon steel tubes specified in marine standard BS MA 49. Because of slight differences in outside diameters occurring in BS 2871-1 and BS 2871-2, the following system of classification has been adopted in this standard: group A consists of copper tube sizes from BS 2871-1 that
14、 are mainly intended for connection by means of capillary or compression couplings; group B consists of copper and copper alloy tube sizes from BS 2871-2 for connection by means of couplings or flanges, as required by the purchaser. Reference should be made to BS 1306 for design, manufacture and ins
15、tallation of copper and copper alloy pipework and to regulatory body rules. NOTEUsers of this standard should note that while observing the requirements of the standard, they should at the same time ensure compliance with such statutory requirements, rules and regulations as may be applicable to the
16、 individual ship concerned. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pa
17、ges This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 8, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover
18、. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:22:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS MA 60:1986 BSI 02-20001 1 Scope This British Standard summarizes a series of copper and copper alloy tubes intended for use with pipe couplings or flanges fo
19、r ships piping systems. It applies to tube materials, temper conditions, pressure and temperature limitations and size ranges based on BS 2871-1 and 2871-2. Tests that are to be used by tube manufacturers are described. Reference to appropriate coupling and flange standards is also made. Minimum thi
20、cknesses of copper and copper alloy tubes are given in Table 5. This standard does not apply to tubes intended for use in cryogenic services, or in heat exchangers, which are subject to special tolerances on tube thickness and outside diameter (see BS 2871-3). NOTE 1For the purpose of this standard,
21、 the term “tube” has been used in accordance with international agreement. No difference is intended in meaning between “tube” and “pipe”, although idiomatic use prefers sometimes one and sometimes the other. NOTE 2Information to be supplied by the purchaser is included as Appendix A. NOTE 3The titl
22、es of the publications referred to in this standard are listed on the inside back cover. 2 Classification NOTECopper and copper alloy tubes have a wide range of applications for shipboard piping services, but can be generally divided into two main groups. For the purpose of this standard, copper and
23、 copper alloy tubes shall be classified as follows. 2.1 group A. This group consists of copper tubes in accordance with Table X or Table Y of BS 2871-1:1971 for use mainly on ships domestic water services in accommodation areas or for other low pressure duties such as air vent pipes. 2.2 group B. Th
24、is group consists of copper and copper alloy tubes in accordance with BS 2871-2 and tubes rolled from plate for use on ships general piping systems in machinery spaces and other engineering and ship services. 3 Method of manufacture 3.1 Tubes up to and including 508 mm outside diameter shall be soli
25、d drawn seamless in accordance with BS 2871-1 and BS 2871-2. Tubes of larger diameter not covered by BS 2871-1 and BS 2871-2 shall be either: a) seamless; or b) fabricated from plate, cut and rolled in shape, methods of welding and seams being in accordance with BS MA 18. 3.2 Where necessary, tubes
26、shall be suitably heat treated to obtain the required temper condition (see clause 5). 4 Materials and applications NOTEThe designations used in this clause are those of BS 2871-2. 4.1 Phosphorus deoxidized non-arsenical copper, C 106 This material shall be used where ease of fabrication is importan
27、t. NOTEThis is the designation of copper normally used for engineering, plumbing and heating. 4.2 Aluminium brass, CZ 110 This material shall be used for tubes for ships condensers, auxiliary plant, pipework, and ships heating coil installations, where permitted. NOTEThis designation has a high resi
28、stance against sea water impingement attack and forms good self-healing protective films in sea or estuarine waters reasonably clean and free from abrasive solids in suspension. Table 1 Temper conditions and hardness MaterialDesignationForm of supplyTemper condition Vickers hardness (HV) CopperC 106
29、Coils Straight lengths 0a “Hb 60 max. 75 to 100 Aluminium brassCZ 110Straight lengthsTAc85 to 110 90/10 Copper-nickel-ironCN 102Coils0a100 max. Straight lengths0a100 max. 70/30 Copper-nickel-ironCN 107Straight lengths0a110 max. Aluminium-nickel-silicon brassCZ 127Straight lengthsWPd140 max. a Anneal
30、ed condition (0). b Half-hard condition (“H) produced by cold drawing. c Temper annealed condition (TA). Tubes heat treated over their length to an intermediate temper. d Solution heat treated and precipitation treated (WP). Licensed Copy: London South Bank University, London South Bank University,
31、Sat Dec 09 02:22:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS MA 60:1986 2 BSI 02-2000 4.3 70/30 Copper-nickel-iron, CN 107; 90/10 Copper-nickel-iron, CN 102 These materials shall be used for sea-water pipelines, high-pressure air, hydraulic and other services operating at higher temperatures an
32、d pressures than those permitted with copper or aluminium brass. NOTEThese designations have resistance to clean sea or estuarine waters comparable with that of aluminium brass, and improved resistance when polluted water conditions are encountered. 4.4 Aluminium-nickel-silicon brass, CZ 127 This ma
33、terial shall be used for high pressure air and hydraulic services. 5 Temper conditions and hardness The temper condition and hardness for each tube material, as supplied by the manufacturer, shall be as given in Table 1. 6 Tube sizes The size of copper and copper alloy tubes shall be specified from
34、those given in Table 2 and the nominal size reference is given only as an aid to flange and valve selection, the tube being designated by outside diameter. NOTETube sizes up to and including 508 mm outside diameter are in accordance with BS 2871-1 and BS 2871-2; for sizes larger than this, Table 2 g
35、ives outside diameters of 610, 711, 813, 914, 1 016, 1 220, 1 420, 1 620 and 1 820 mm. 7 Tolerances 7.1 The thickness of the tube at any point shall not vary from that specified by more than the following. Seamless copper tubes: 10 % Seamless copper alloy tubes: sizes up to and including 108 mm 10 %
36、 sizes above 108 mm 12.5 % Tubes rolled from sheet or plate: as specified in BS 2870 or BS 2875 7.2 For tube sizes up to and including 508 mm outside diameter, the mean outside diameter shall not vary from that specified by more than the tolerances specified in BS 2871-1 and BS 2871-2. 7.3 For tube
37、sizes referred to in clause 6 that are outside the scope of BS 2871-2, the mean outside diameter shall not vary from that specified by more than the following tolerances. Sizes 610 mm up to and including 1 016 mm outside diameter: + 1, 2 mm Sizes over 1 016 mm outside diameter: 2 mm 8 Pressure and t
38、emperature limitations 8.1 General The maximum permissible working pressures for the standard tube thicknesses given in the relevant British Standards shall be ascertained from the appropriate rules of the regulatory bodies. NOTEWhen thicker tubes are necessary, they may be supplied to special order
39、. 8.2 Group A tubes The pressure and temperature limitations on the use of group A tubes shall be those given in Table 3. 8.3 Group B tubes The pressure and temperature limitations on the use of group B tubes shall be those given in Table 4. 9 Tests by tube manufacturers 9.1 Group A copper tubes sha
40、ll be tested in accordance with BS 2871-1. 9.2 Group B seamless copper and copper alloy tubes shall be tested in accordance with BS 2871-2 and in addition shall be subjected to a hydraulic proving test by the manufacturer. The manufacturers certificate of compliance shall be accepted unless otherwis
41、e specified by the regulatory body concerned. NOTETubes rolled from plate and welded need not be subjected to hydraulic or other tests, but it is recommended that the welded seam is non-destructively tested in accordance with one of the methods specified in BS 4206. 10 Marking Tubes shall be marked
42、for identification purposes with the material designation and the purchasers order number. NOTEThe manufacturers standard practice for marking is acceptable unless otherwise specified by the purchaser. 11 Packaging and protection The manufacturer shall take all reasonable steps to protect the tubes
43、from damage and ingress of dirt during transit and storage. NOTEThe manufacturers standard practice for this is acceptable unless otherwise specified by the purchaser. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:22:41 GMT+00:00 2006, Uncontrolled Copy, (c
44、) BSI BS MA 60:1986 BSI 02-20003 Table 2 Application of copper and copper alloy tubes MaterialCopperCopper alloy ClassificationGroup AGroup BGroup BGroup BGroup B British StandardBS 2871-1BS 2871-2 Table referenceaTables X or YTables 3, 5 or 6Table 3 DesignationC 106C 106CZ 110CN 102 and CN 107 CZ 1
45、27 Temper condition Coils000b Straight lengths“H“HTA0WP Pipe-fitting to British Standard BS 864-2BS 2051-1 Flanges to British StandardSee BS 4504-2 Nominal size (DN)c Outside diameter (mm) Pipe fittings FlangesPipe fittings FlangesPipe fittings FlangesPipe fittings FlangesPipe fittings Flanges Size
46、range 4 6 8 10 12 1015 1016d 1518 1520d 2022 2025d 2528 2530d 3235 3238d 4042 4044.5d 5054 5057d 6576.1 8088.9d 100108 125133 150159 200219.1 250267 300323.9 350368 400419 450457.2 500508 600610 700711 800813 900914 1 0001 016See note 1 2001 220 1 4001 420 1 6001 620 1 8001 820 NOTESizes above 508 m
47、m outside diameter are not included in BS 2871-2. a Composite slip-on flanges having a tube stop and composite welding neck flanges in accordance with BS 4504-2 are based on using preferred standard thicknesses of tubes in accordance with Table 3 of BS 2971-2:1972. b Coils are available in CN 102 ma
48、terial only. c The size of copper and copper alloy tubes are specified by reference to the outside diameter. The nominal size has been included for convenience in order to interrelate tube size with flange standards. d To be used for group B applications. These tube sizes are not listed in Tables 5
49、and 6 of BS 2871-2:1972 but are available on demand. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:22:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS MA 60:1986 4 BSI 02-2000 Table 3 Limitations of use for group A tubes MaterialDesignationType of pipe connection Pipe fittings in accordance with BS 864-2 Flanges Maximum pressure (bara