《BS-MA-49-1986.pdf》由会员分享，可在线阅读，更多相关《BS-MA-49-1986.pdf（12页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD MARINE SERIES CONFIRMED JULY 1999 BS MA 49:1986 Summary and application of carbon steel tubes for marine pipework systems UDC 629.12.06:621.643.2-034.14 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:22:41 GMT+00:00 2006, Uncontrolled Copy,
2、(c) BSI BS MA 49:1986 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 28 February 1986 BSI 03-2000 First published May 1974 First revision The following
3、BSI references relate to the work on this standard: Committee reference SME/1 Draft for comment 83/76283 DC ISBN 0 580 14902 1 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Shipbuilding and Marine Standards Committee (SME/-) to Technic
4、al 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 Council of British Shipping Amend
5、ments 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 49:1986 BSI 03-2000i Contents Page Committees responsibleInside front cover Forewordii 1Scope1
6、2Definition1 3Classification1 4Materials1 5Tube dimensions1 6Application1 7Product approval1 8Additional protection1 Appendix A Comparable American and German specifications for carbon steel tubes6 Appendix B Coding system for tube manufacturing methods6 Appendix C References for marine pipework des
7、ign6 Table 1 Summary of carbon steel tubes and piping classes2 Table 2 Nominal size, outside diameter and thickness range of carbon steel tubes in accordance with BS 3601, BS 3602 and BS 3603 for marine use3 Table 3 Outside diameter and thickness range of cold finished precision carbon steel tubes i
8、n accordance with BS 3602 for marine use4 Table 4 Application of carbon steel tubes5 Table 5 Comparable carbon steel tube specifications6 Publications referred toInside back cover Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:22:41 GMT+00:00 2006, Uncontrol
9、led Copy, (c) BSI BS MA 49:1986 ii BSI 03-2000 Foreword This revision of BS MA 49, which was based on a proposal from the British Ship Research Association, has been prepared under the direction of the Shipbuilding and Marine Standards Committee. It supersedes BS MA 49:1974 which is withdrawn. In re
10、vising this standard, relevant British Standard specifications have been compared with the rules of the Department of Transport (Marine Directorate) and Lloyds Register of Shipping to ensure compatibility for acceptance purposes in regard to materials, method of manufacture, range of application, et
11、c. Appendix C draws attention to necessary references when designing marine pipework. 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 applica
12、ble to the 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. Sum
13、mary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 6, 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 f
14、ront 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 49:1986 BSI 03-20001 1 Scope This British Standard summarizes a series of carbon steel tubes suitable for marine pipework systems in terms of ma
15、terials, size and thicknesses of tube together with limiting working conditions. Where necessary to meet regulatory bodies or classification societies rules, requirements additional to those in relevant British Standards are specified. Zinc coating and repair of defects are also covered. This standa
16、rd does not apply to tubes intended for use in the following applications. a) Chemical cargo installations, which are subject to special material requirements to resist liquid or gaseous attack. b) Low temperature installations where the minimum temperature is below 50 C. c) High temperature install
17、ations where the maximum temperature is above 400 C. NOTE 1For the purposes of this standard, 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
18、. NOTE 2The titles of the publications referred to in this standard are listed on the inside back cover. 2 Definition For the purposes of this British Standard, the following definition applies. surveyor the representative of the marine regulatory body and/or classification society concerned 3 Class
19、ification The design pressure/temperature ratings, which vary according to the type of system on which a tube is to be used, shall be grouped for the purposes of this standard as follows: 4 Materials Materials for tubes shall be in accordance with BS 1387, BS 3601, BS 3602 or BS 3603, as appropriate
20、. A summary of the steel tube materials covered by this standard appropriate to the piping classes is given in Table 1. The code letters defining the method of manufacture (see Appendix B), and the available size ranges are also given. NOTEComparable American and German specifications are given in A
21、ppendix A. 5 Tube dimensions 5.1 Tube dimensions shall be specified by the details shown in Table 2 and Table 3 (which are extracted from BS 3600). Tubes in Table 3 shall be specified by their outside diameter and thickness. NOTEIt is common practice in standards for various types of joints, fitting
22、s and flanges, to designate the tube by the nominal size. The nominal size is a numerical designation of size which is common to all components in a piping system other than components designated by outside diameter. It is a convenient round number for reference purposes and is normally only loosely
23、 related to manufacturing dimensions. 5.2 The required design thickness of the pipe shall be calculated in accordance with the relevant regulatory body rules for pressure pipes and a standard thickness equal to or greater than the calculated thickness selected from Table 2 or Table 3. The heavy line
24、 in Table 2 and the lower limit heavy line in Table 3 represent the minimum acceptable pipe thicknesses specified in regulatory bodies rules for pressure pipes in general. 6 Application The application of carbon steel tubes in ships piping systems shall be in accordance with Table 4 appropriate to t
25、he class of pipe, material specification and piping system. 7 Product approval 7.1 General Carbon steel tubes intended for applications in accordance with clause 6, for use in the construction or repair of ships pipelines, shall comply with 7.2. 7.2 Classes I, II and III Tubes for class I and class
26、II applications shall be manufactured at approved works, shall comply with BS 3602 (class I), BS 3603 (class I) and BS 3601 (class II), but shall be surveyed and tested in accordance with regulatory body rule requirements. Tubes for class III applications shall be manufactured and tested in accordan
27、ce with the requirements of BS 3601 or BS 1387, and a manufacturers certificate shall be provided for each consignment of material. 8 Additional protection 8.1 Hot dip galvanized tubes are available to the BS 1387 specification and reference shall be made to that standard for details. class I:high p
28、ressure/temperature applications and low temperature applications (down to 50 C); class II:intermediate pressure/temperature; class III: low pressure/temperature (above 0 C). Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:22:41 GMT+00:00 2006, Uncontrolled C
29、opy, (c) BSI BS MA 49:1986 2 BSI 03-2000 8.2 Where steel tubes are required to be hot-dip galvanized internally and externally after all fabrication is completed, this shall be in accordance with BS 729 except that for sea-water services the minimum mass of coating shall be 610 g/m2 for all pipe thi
30、cknesses (see BS MA 18). NOTE 1Attention is drawn to the rules of regulatory bodies concerning the use of hot dip galvanized tubes where water speeds exceed 3 m/s and also to the restrictions placed on hot dip galvanized tubes in refrigeration installations. NOTE 2Non-metallic methods of tube protec
31、tion are available, but service experience to date is inadequate. See, however, CP 3003. 8.3 The renovation of damaged areas of hot dip galvanized coatings shall be carried out in accordance with Appendix D of BS 729:1971. Table 1 Summary of carbon steel tubes and piping classes Piping classes (see
32、clause 3) British StandardSteel grade(s) Method of manufacture codea Size range for marine applications IBS 3602360 410 HFS CFS ERW CFSb CEWb SAW mm 33.7 to 457 o.d 10.2 to 457 o.d 10.2 to 168.3 o.d 6 to 42 o.d 6 to 42 o.d c BS 3603410 LT 50HFS CFS ERW 33.7 to 457 o.d 10.2 to 457 o.d 10.2 to 168.3 o
33、.d IIBS 3601320 360 S ERW 10.2 to 457 o.d 10.2 to 508 o.d IIIBS 3601320 360 410 S ERW SAWc 10.2 to 457 o.d 10.2 to 508 o.d 610 to 1820 o.d BS 1387ERWDN 32 to DN 125 a For coding system see Appendix B. b For use with compression couplings. c The use of SAW tubes is to be reserved for large diameters
34、greater than 508 mm outside diameter. 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 49:1986 BSI 03-20003 Table 2 Nominal size, outside diameter and thickness range of carbon steel tubes in accordance wi
35、th BS 3601, BS 3602 and BS 3603 for marine use Nominal size (DN) Outside diameter Thickness (mm) 1.61.82.02.32.62.93.23.64.04.55.05.45.65.96.37.18.08.810.011.012.514.216.017.520.022.225.0 6 mm 10.2 I 813.5I 1017.2I 1521.3IXX 2026.9IXXII 2533.7IIXIXI 3242.4IIXIXIX 4048.3IIIXIXX 5060.3IIIXIX 6576.1IIX
36、IXI 8088.9IIXIXXI 100114.3IIXXIXI 125139.7IIXXIXI 150168.3IIXIXI 200219.1IXIIXI 250273.0IXIXI 300323.9IXIXXI 350355.6IXXIXI 400406.4XIXIXXI 450457XIXXIX 500508II 600610I 700711I 800813I 900914 10001 016 12001 220 14001 420 16001 620 18001 820 NOTE 1“X” indicates thicknesses preferred in this standar
37、d for marine use and which are generally readily available. For pipes above DN 450, no preferred thicknesses are indicated and the required thickness is to be determined in accordance with 5.2 and a suitable thickness selected on the basis of commercial availability. NOTE 2“I” indicates ISO preferre
38、d series thicknesses (see Table 1 of ISO 4200). NOTE 3Diameters and thicknesses of tables to BS 1387 may differ marginally from the dimensions given in this table. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:22:41 GMT+00:00 2006, Uncontrolled Copy, (c) BS
39、I BS MA 49:1986 4 BSI 03-2000 Table 3 Outside diameter and thickness range of cold finished precision carbon steel tubes in accordance with BS 3602 for marine use Outside diameter Thickness (mm) 0.50.60.81.01.21.61.82.02.32.62.93.23.64.04.55.0 mm 6 8 10 12 15 16 18 20 22 25 28 30 35 38 42 NOTE 1The
40、envelope contained by the heavy lines represents the range of tube thicknesses that should normally suffice for marine requirements. Attention is also drawn to 5.2. NOTE 2These tubes are primarily intended for use with compression couplings. Licensed Copy: London South Bank University, London South
41、Bank University, Sat Dec 09 02:22:41 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS MA 49:1986 BSI 03-20005 Table 4 Application of carbon steel tubes Piping classes (see clause 3) British Standard Piping system SteamFuel oilOther mediaLow temperature application Permitted design conditions (see note
42、1) PressureTemperaturePressureTemperaturePressureTemperaturePressureTemperature baraCbarCbarCbarC IBS 3602above 16400 max.above 16above 150above 40400 max.within limit set by note 2 BS 3603not applicableall pressures down to 50 IIBS 3601163001615040300not applicable IIIBS 3601717076016200not applica
43、ble BS 1387717076016200not applicable NOTE 1For pressure pipes subject to regulatory bodies rule requirements, the permitted design conditions are as stated and pipe thicknesses should be calculated in accordance with the appropriate rules. NOTE 2Subject to regulatory bodies agreement, tubes to BS 3
44、602 may be used on secondary low pressure refrigerating installations involving temperatures down to 30 C. a 1 bar = 105 N/m2= 100 kPa. 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 49:1986 6 BSI 03-200
45、0 Appendix A Comparable American and German specifications for carbon steel tubes In some cases carbon steel tubes manufactured to American specifications may be referred to, particularly on tankships for the carriage of oil and petroleum products. American and German alternatives to British Standar
46、d tube specifications are given in Table 5, but the user should obtain verification from the regulatory body concerned that tubes in accordance with these specifications are acceptable. Appendix B Coding system for tube manufacturing methods The methods of tube manufacture given in the following lis
47、t are covered in other standards and are coded for designation purposes as shown. Appendix C References for marine pipework design C.1 The rules of the respective marine regulatory bodies comprehensively cover most aspects of pipework design for marine use, and it is essential that reference be made
48、 to the appropriate rules. C.2 In addition to the rules of the regulatory bodies, reference should be made to the following related British Standards where relevant. a) For large bore tubes using slip-on type couplings, refer to BS 534. b) For salt water piping systems, refer to BS MA 18. c) For fla
49、nges and bolting, refer to BS 4504-1. Table 5 Comparable carbon steel tube specifications Method of tube manufactureCode Cold finished seamlessCFS Hot finished seamlessHFS Submerged arc weldedSAW Cold finished electric resistance and induction weldedCEW Electric resistance and induction weldedERW SeamlessS BritishAmericanGerman Medium as in BS 1387ASTM A53 type FDIN 2440 Heavy as in BS 1387ASTM A53 type FDIN 2441 Grade 320 as in BS 3601ASTM A53 grade A API 5L grade A Grade 360 as in BS 3601DIN 1626 (u) St. 37.0 (ERW) DIN 162