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1、BRITISH STANDARD BS 2901-3: 1990 Filler rods and wires for gas-shielded arc welding Part 3: Specification for copper and copper alloys Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 28 13:51:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 2901-3:1990 This British Standard, having been prepared
2、 under the direction of the Welding Standards Policy Committee, was published under the authority of the Board of BSI and comes into effect on 30 September 1990 BSI 03-1999 First published, incorporated in BS 2901-1 and BS 2901-2, September 1957 and April 1960 Second edition, as BS 2901-3 November 1
3、970 Third edition, May 1983 Fourth edition September 1990 The following BSI references relate to the work on this standard: Committee reference WEE/39 Draft for comment 89/76927 DC ISBN 0 580 18989 9 Committees responsible for this British Standard The preparation of this British Standard was entrus
4、ted by the Welding Standards Policy Committee (WEE/-) to Technical Committee WEE/39, upon which the following bodies were represented: Aluminium Federation Association of Welding Distributors British Association for Brazing and Soldering British Compressed Gases Association British Constructional St
5、eelwork Association Ltd. British Shipbuilders British Steel Industry Electricity Supply Industry in England and Wales Engineering Equipment and Materials Users Association Power Generation Contractors Association (BEAMA Ltd.) Process Plant Association Welding Institute Welding Manufacturers Associat
6、ion (BEAMA Ltd.) Coopted members The following bodies were also represented in the drafting of the standard, through subcommittees and panels: British Non-ferrous Metals Federation British Nuclear Fuels Limited British Railways Board British Steel Industry (Wire Section) Stainless Steel Wire Industr
7、y Association United Kingdom Atomic Energy Authority Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 28 13:51:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 2901-3:1990 BSI 03-1999i Contents Page Committees responsibleInside front cover
8、Forewordii 1Scope1 2Chemical composition1 3Diameters and tolerances1 4Condition of rods and wires1 5Spools of wire1 6Spooling conditions1 7Lengths of rods3 8Packing3 9Marking3 10Suppliers certificate4 Appendix A References to health and safety publications5 Figure 1 Spool4 Table 1 Chemical compositi
9、ons for copper and copper alloys (percentage by mass)2 Table 2 Diameters and tolerances3 Table 3 Dimensions of spools3 Table 4 Maximum masses for wire on spools4 Publication(s) referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 28 13:51:53 GMT+00:00 2006, Uncontrolled C
10、opy, (c) BSI BS 2901-3:1990 ii BSI 03-1999 Foreword This revision of this Part of BS 2901 has been prepared under the direction of the Welding Standards Policy Committee. BS 2901 is published in Parts covering the following types of consumables. a) Part 1: covers ferritic steels; b) Part 2: covers s
11、tainless steels; c) Part 3: covers copper and copper alloys; d) Part 4: covers aluminium and aluminium alloys and magnesium alloys; e) Part 5: covers nickel and nickel alloys. This Part of BS 2901 supersedes BS 2901-3:1983 which is withdrawn. In accordance with current practice, in deciding on the d
12、imensions of wires and reels, account has been taken of appropriate ISO (International Organization for Standardization) specifications. Although the rods and wires specified in this Part of BS 2901 are all suitable for some form of gas-shielded arc welding, certain rods and wires are not suitable f
13、or use with particular shielding gases. The chemical composition of the deposited weld metal is not specified because this depends on the shielding gas used and the particular welding conditions. It is necessary, therefore, to ascertain from the supplier whether the rods or wires are suitable for us
14、e with a particular shielding gas. Also for some applications a particular chemical composition may need to be selected from the range specified for the appropriate type of rod or wire. In this revision four new alloys have been introduced. Product certification. Users of this British Standard are a
15、dvised to consider the desirability of third party certification of product conformity with this British Standard based on testing and continuing surveillance, which may be coupled with assessment of a suppliers quality systems against the appropriate Part of BS 5750. Enquiries as to the availabilit
16、y of third party certification schemes will be forwarded by BSI to the Association of Certification Bodies. If a third party certification scheme does not already exist, users should consider approaching an appropriate body from the list of Association members. A British Standard does not purport to
17、 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 pages This document comprises a front cover, an inside front cover,
18、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 front cover. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 28 13:51:53
19、GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 2901-3:1990 BSI 03-19991 1 Scope This Part of BS 2901 specifies requirements and chemical compositions for copper and copper alloy filler rods and wires for gas-shielded arc welding, i.e. TIG-welding or MIG-welding. NOTEThe titles of the publications ref
20、erred to in this Part of BS 2901 are listed on the inside back cover. 2 Chemical composition The rods and wires shall have a chemical composition in accordance with Table 1 for the particular type ordered. In cases of dispute, regarding the chemical composition of the rods and wires, check analysis
21、shall be carried out. NOTE 1Some suitable methods are given in BS 1748. For the purposes of determining compliance with composition limits, any value obtained from the analysis shall be rounded to the same number of decimal places as used in this standard in expressing the specified limit. The follo
22、wing rules shall be used for rounding. a) When the figure immediately after the last figure to be retained is less than five, then the last figure to be retained shall be kept unchanged. b) When the figure immediately after the last figure to be retained is either: 1) greater than five; or 2) equal
23、to five and followed by at least one figure other than zero; then the last figure to be retained shall be increased by one. c) When the figure immediately after the last figure to be retained is equal to five, and followed by zeros only, then the last figure to be retained shall be left unchanged if
24、 even, and increased by one if odd. NOTE 2The purchaser should indicate whether a test certificate for the chemical analysis of rods and wires is required. 3 Diameters and tolerances The diameters of rods and wires shall be selected from the values given in Table 2 with tolerances appropriate to the
25、 specified diameters. 4 Condition of rods and wires 4.1 Finish Rods and wires shall have a smooth finish, free from surface imperfections, corrosion products, grease or other foreign matter which would adversely affect the quality of the weld or the operation of the welding equipment. 4.2 Cast and h
26、elix of wire Filler wire spooled on a 300 mm diameter spool shall be such that one complete loop or circle of wire taken from the spool, when laid on a flat surface without restraint, shall form a circle or part thereof with a minimum diameter of 320 mm. NOTE 1The cast of filler wire spooled on a 10
27、0 mm diameter spool is not specified in this standard and should be agreed between the purchaser and the supplier. For wire spooled on a 300 mm diameter spool, the vertical separation (helix) between any part of the loop which was used to determine the cast and the flat surface on which it is laid,
28、shall not exceed 25 mm. NOTE 2The helix of filler wire spooled on a 100 mm diameter spool is not specified in this standard and should be agreed between the purchaser and the supplier. NOTE 3Although cast and helix have been specified it should be noted that other factors which cannot be quantified
29、also affect the feeding of a wire. 5 Spools of wire The size of spool on which the particular diameter of wire is to be supplied shall conform to the appropriate dimensions and mass given in Figure 1 and Table 3 and Table 4. NOTE 1The purchaser should designate the type and size at the time of placi
30、ng the order. The flanges of spools shall be sufficiently robust to avoid becoming deformed in normal usage. NOTE 2The barrel diameter for spools should be as large as possible to permit satisfactory feeding of the wire. 6 Spooling conditions The wire shall be wound on the spool in one continuous le
31、ngth and shall be free from kinks, waves, sharp bends or twists, so that it is free to unwind without restriction. The outer layer of wire shall be not closer than 3 mm to the flange periphery on spools having a flange diameter of 100 mm and not closer than 10 mm to the flange periphery on spools ha
32、ving a flange diameter of 300 mm. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 28 13:51:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 2901-3:1990 2 BSI 03-1999 Table 1 Chemical compositions for copper and copper alloys (percentage by mass) TypeCopperLead max. AluminiumTitaniumIronNickelMan
33、ganeseSiliconZinc max. TinArsenic max. Antimony max. Sulphur max. Bismuth max. PhosphorusOther elements min.max.min.max.min. max. min.max.min.max.min.max.min.max.min.max.min.max. C1ARemainder 0.01 0.01 0.05 0.30.20.10.050.02 Ag 0.8 to 1.2 C7aRemainder 0.010 0.03 0.03 0.10 0.10.50.10.51.00.050.0050.0
34、030 0.015 C8bRemainder 0.010 0.10.30.10.30.030.100.050.0050.00300.015 Al + Ti 0.25 min. 0.5 max. C9Remainder 0.020 0.03 0.30.10 0.75 1.52.84.00.50.020 C10Remainder 0.020 0.03 4.55.50.02 0.40 C11Remainder 0.020 0.03 5.58.00.02 0.40 C12Remainder 0.007 6.07.5(Fe + Ni + Mn)c: 1.0 min. 2.5 max. 0.10 0.2
35、C12Fe Remainder 0.007 6.58.52.53.50.10 0.2 C13Remainder 0.007 9.011.00.75 1.51.0 1.0 0.10 0.2 C16Remainder 0.007 0.03 0.20 0.50 1.51.810.0 11.0 0.51.0 0.10.010.01 C18Remainder 0.007 0.03 0.20 0.50 0.41.030.0 32.0 0.51.5 0.10.010.01 C2080.5 85.00.007 8.09.51.53.53.55.0 0.52.0 0.10 0.2 C22Remainder 0.
36、02 6.58.51.54.01.53.0 11.0 14.0 0.10 0.15 C23Remainder 0.01 6.06.40.50.70.1 0.5 2.02.40.40.1 C24adRemainder 0.02 0.01 0.10 1.52.5 0.2 C25Remainder 0.007 0.05 0.05 0.051.01.7 0.150.4 0.40.74.56.0 0.010.015 0.035 C26Remainder 0.02 8.59.53.05.04.05.5 0.63.5 0.10 0.10 C27Remainder 0.02 0.01 0.10.111.0 1
37、3.0 0.01 0.35 C28Remainder 0.02 7.59.50.50.8 1.0 0.20.2 C29Remainder 0.02 7.59.51.52.51.83.0 1.02.5 0.20.2 a These rods and wires are intended for welding copper using argon or helium or mixtures thereof as the shielding gas. b These rods and wires are intended for welding copper using nitrogen as t
38、he shielding gas, but argon or helium or mixtures thereof may be used. c These are optional elements, but if present they are to be within the limits specified. d The total impurities are 0.5 %. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 28 13:51:53 GMT+00:00 2006, Uncontrolled Copy, (c) BS
39、I BS 2901-3:1990 BSI 03-19993 Table 2 Diameters and tolerances 7 Lengths of rods1) The length of rod supplied shall be one of the following: a) 500 mm or 1 000 mm for rods of less than 2.5 mm diameter; b) 1 000 mm for rods of 2.5 mm diameter and larger; c) a length as stated at the time of placing t
40、he order. NOTEOptions 7 a) and 7 b) are the preferred lengths. The tolerance on each length shall be 5 mm. 8 Packing Rods and spools of wire shall be suitably packed to guard against damage, contamination or deterioration during storage and transportation. NOTEIf special conditions apply, e.g. trans
41、portation to a tropical region the purchaser should state them at the time of placing the order. 9 Marking Each package of rods and each spool of wire and its outer packing shall be clearly marked with the following information. a) The name of the supplier. b) The designation of type of rod or wire.
42、 NOTEIf individual identification of rods is required this is to be agreed between the purchaser and supplier at the time of placing the order. c) The size and quantity or mass of rod or wire. d) The identification number for traceability. e) A health warning (see Appendix A) consisting of the gener
43、al warning sign (A.2.9 of BS 5378-1:1980) accompanied by the following. FUMES AND GASES CAN BE DANGEROUS TO YOUR HEALTH. ARC RAYS CAN INJURE EYES AND BURN SKIN. ELECTRIC SHOCK CAN KILL. READ AND UNDERSTAND THE MANUFACTURERS INSTRUCTIONS AND YOUR EMPLOYERS SAFETY PRACTICES. Table 3 Dimensions of spoo
44、ls FormDiameterTolerance mmmm 0.5 0.6 + 0.01 0.03 Wire0.8 0.9 1.0 + 0.01 0.04 1.2 1.6 Wire or rod 2.0 2.4 2.5 3.2 + 0.01 0.07 Rod4.0 5.0 NOTEThe values printed in bold type are the sizes normally manufactured. 1) The lengths specified in 7 a) and 7 b) are in accordance with ISO 544:1989. ABCDE Diame
45、terToleranceWidthToleranceDiameterToleranceDistance between axes ToleranceDiameterTolerance mmmmmmmmmmmmmmmmmmmm 100 + 2 2 45 + 0 2 16 + 1 0 300 + 5 5 103 + 0 3 50.5 + 2.5 0 44.5 + 0.5 0.5 10 + 1 0 NOTEThe dimensions specified are in accordance with ISO 864:1988 and shown in Figure 1. Licensed Copy:
46、 sheffieldun sheffieldun, na, Tue Nov 28 13:51:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 2901-3:1990 4 BSI 03-1999 10 Suppliers certificate The supplier shall provide a certificate stating that the rods or wires comply with BS 2901-3:19902). Table 4 Maximum masses for wire on spools Figure 1
47、Spool 2) Marking BS 2901-3:1990 on or in relation to a product represents a manufacturers declaration of conformity, i.e. a claim by or on behalf of the manufacturer that the product meets the requirements of the standard. The accuracy of the claim is therefore solely the responsibility of the perso
48、n making the claim. Such a declaration is not to be confused with third party certification of conformity, which may also be desirable. Wire diameters Masses for wire on spools having flange diameters of 100 mm300 mm kgkg All1.115 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 28 13:51:53 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 2901-3:1990 BSI 03-19995 Appendix A References to health and safety publications The following references relating to health and safety are available. The Facts About Fume,