02. is 5504_2010_with amd 1 to 4

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    IS 5504 : 1997

    (Reaffirmed 2003)

    Edition 2.2

    (2007-08)

    Indian Standard

    SPECIFICATION FOR SPIRAL WELDED PIPES

    ( First Revision )(Incorporating Amendment Nos. 1 & 2)

    ICS 23.040.10

    BIS 2008

    B U R E A U O F I N D I A N S T A N D A R D S

    MANAKBHAVAN, 9BAHADURSHAHZAFARMARG

    NEWDELHI110002

    Amendment 1_May' 2002

    Amendment 2_Aug' 2007

    Amendment 3_April'2008

    Amendment 4_June'2010

    attached end of this spec

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    IS 5504 : 1997

    1

    Indian Standard

    SPECIFICATION FOR SPIRAL WELDED PIPES

    ( First Revision )

    1 SCOPE

    This standard covers the requirements of spiralseam welded steel pipe over 457 mm dia andupto 2 000 mm dia with wall thickness upto12.5 mm inclusive. The pipe is intended forgeneral use. The suitability of pipe for variouspurposes is dependent on its dimensions,properties and condition of service. The purposefor which the pipe is intended should be stated

    in the enquiry and order.

    2 REFERENCES

    2.1 The following Indian Standards arenecessary adjuncts to this standard:

    3 SUPPLY OF MATERIAL

    General requirements relating to the supply ofspiral welded pipes shall conform to IS 1387.

    4 MANUFACTURE

    4.1 Pipe shall be made from steel produced bythe open hearth or electric or one of the basic

    oxygen processes. Other processes may be usedby agreement with the purchaser.

    4.2 The pipes shall be made by rolling a strip,sheet or plate so that a helical seam is formedaround the circumference of the pipe. Thehelical seam shall be welded by one of thefollowing processes:

    a) Electric fusion butt welding internally andautomatic arc welding externally.

    b) Electric resistance welding.

    c) Automatic submerged-arc welding usingat least two weld passes, one of which

    shall be on the inside of the pipe. All end

    welding of spiral seams of submerged-arcwelding pipe, if not done by automaticsubmerged-arc welding, shall be done by aprocedure and welder qualified inaccordance with Annex A.

    4.3 The coil or sheet used for manufacture ofthe pipe shall be trimmed to the proper widthand given special edge treatment required bythe welding process. The material then shall be

    rolled so that a helical seam is formed aroundthe circumference of the pipe. The electric arcwelding operation performed to fuse or seal theedges or surface of helical seam shall producegenerally uniform weld.

    5 CHEMICAL COMPOSITION

    5.1 Ladle Analysis

    The ladle analysis of the steel when analysed inaccordance with the relevant parts of IS 228shall be as given below:

    5.2 Product Analysis

    Variation in case of product analysis from thelimits specified in 5.1 shall be as follows:

    6 PHYSICAL TESTS

    6.1 Tensile Test

    6.1.1 One tensile test, either longitudinal ortransverse as required, shall be made on alength of pipe from each lot of 200 lengths orless.

    The tensile strength, the yield stress and thepercentage elongation shall be determined inaccordance with the methods specified in

    IS 1608.

    IS No. Title

    228 Methods of chemical analysis of steels issued in various parts

    1387 : 1993 General requirements for thesupply of metallurgical materials( second revision )

    1608 : 2005/ISO 6892 :1998

    Metallic materials Tensiletesting at ambient temperature( third revision )

    C percent

    ( Max)

    S percent

    ( Max)

    P percent

    ( Max)

    0.25 0.05 0.05

    Element Variation Over and AboveSpecified Limit, percent

    C

    P

    S

    0.02

    0.005

    0.005

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    IS 5504 : 1997

    3

    long shall not be the cause for rejection. At theoption of the manufacturer, specimen may beflattened before testing.

    6.3.1.2 Retests

    If the guided-bend test specimens fail to

    conform to the specified requirements, themanufacturer may elect to repeat the tests onspecimens cut from two additional lengths ofpipe from the same lot. If such specimens

    conform to the specified requirements, all thelengths in the lot shall be accepted except, thelength initially selected for test. If any of theretest specimens fail to pass the specifiedrequirements, the manufacturer may elect to

    test specimens cut from the individual lengthsremaining in the lot. Specimens for retestsshall be taken in the same manner as specifiedin 6.1.3.

    FIG. 1 GUIDED BEND TEST SPECIMEN

    All dimensions in millimetres.

    FIG. 2 JIGFOR GUIDED BEND TEST

    RA

    A

    2---- B = A 2+ t + 3.2 mm=

    RB

    B

    2----=

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    IS 5504 : 1997

    5

    ANNEX A

    ( Clause 4.2 )

    REPAIR-WELDING PROCEDURE AND WELDER PERFORMANCE TESTS

    A-1 GENERAL

    A-1.1All manual and semi-automaticsubmerged-arc and gas-shielded-arc repairwelds, and manual and semi-automaticmetallic-arc repair welds using coatedelectrodes shall be made according to a testedprocedure and by a repair-welder tested in aflat position as specified inA-2 andA-3. Whenthe base metal temperature of the material tobe repair welded is below 10C, submerged-arc,gas-shielded-arc, or manual metallic-arcmethods with low hydrogen electrodes shall beused for the repair-welding test. Themanufacturer shall maintain a record of theprocedure and performance test results. Testwelds may be made either on plate stock or pipestock at the option of the manufacturer.

    A-2 REPAIR-WELDING PROCEDURETESTS

    A-2.1 Repair-welding procedure tests arerequired on two specimens from each test ofevery grade and on material which is on thehigh side of the chemical specification andwhich is at least as thick as the pipe on whichwelds are to be made. The repair-welding

    procedure test shall be made at a temperatureat or below the lowest temperature at whichrepair welds are made.

    A-2.2 Transverse Tensile Test

    The transverse tensile test specimen ( seeFig. 3 ) shall be approximately 38 mm wide andshall have the transverse metallic-arc buttweld perpendicular to the longitudinal axis atthe centre of the test specimen. The weldreinforcement shall be removed from bothfaces. The ultimate tensile strength shall be atleast equal to the minimum specified for the

    grade.

    A-2.3 Longitudinal Tensile ElongationTest

    The longitudinal tensile-elongation testspecimen shall conform to Fig. 4. The weldshall be made in a groove as shown. Theelongation after complete rupture of the testspecimen in tension shall be at least equal tothe minimum elongation specified for thegrade.

    A-2.4 Transverse Guided Bend Test

    The transverse guided-bend test specimen shallconform to Fig. 5. The weld shall be made in agroove as shown. The specimen shall be placedon the die with the weld at mid-span, and shallbe bent approximately 180 in a jig inaccordance with Fig. 2 with the exposed surfaceof the weld in tension. The bend test shall beconsidered acceptable if:

    a) No crack or other defect exceeding 3 mmin any direction is present in the weldmetal or between the weld and the pipemetal after bending. Cracks whichoriginate along the edges of the specimenduring testing and which are less than6.5 mm measured in any direction shallnot be considered.

    b) The specimen cracks or fractures duringbending and the exposed surface showscomplete penetration and fusionthroughout the entire thickness of theweld specimen; not more than 1 gas pocketper square cm with the greatestdimension not exceeding 1.6 mm and noslag inclusions greater than 0.8 mm deepor 3 mm wide and separated by at least13 mm of sound metal. (If necessary the

    specimen shall be broken apart to permitexamination of the fracture.)

    A-2.5 Nick-Break Test

    The nick-break specimen shall conform toFig. 6. The weld shall be made in a groove asshown. The specimen shall be hacksaw-notchedfrom both edges at the centre of the weld andshall be broken by pulling or hammer blows atthe centre or one end. The exposed surface ofthe specimen shall be considered acceptable if itshows not more than:

    a) One gas pocket for nominal wall

    thicknesses of 6.35 mm and less.b) Two gas pockets for nominal wall

    thicknesses of 12.7 mm or less, but greaterthan 6.35 mm.

    c) Three gas pockets for nominal wallthicknesses greater than 12.7 mm. Thegreatest dimension of a gas pocket shallnot exced 1.6 mm. Slag inclusion shall beseparated by at least 13 mm of soundmetal and shall be not greater than0.8 mm deep or 3 mm wide.

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    IS 5504 : 1997

    6

    A-3 REPAIR-WELDERS PERFORMANCETEST

    A-3.1 Repair-welders performance tests arerequired on two specimens from each test ofevery grade, except that a welder qualified on

    one grade is also qualified for any lower grade.If either of the two specimens fails to conformto the requirements specified, four retests shallbe required if made immediately, or two retestsshall be required if the welder takes furtherinstructions in the practice before making aretest. All retests shall conform to the

    requirements specified. Further performancetests are required at a minimum of one-yearintervals, and also if the repair-welder is notengaged in the tested repair-welding procedurefor a period of three months or more, or if there

    is some specific reason to question his ability.Both of the following tests shall be made:

    a) Transverse guided-bend test as stipulatedunder welding procedure test ( seeA-2.4 );and

    b) Nick-break test as stipulated underwelding-procedure test ( seeA-2.5 ).

    FIG. 3 TRANSVERSE TENSILE TEST SPECIMEN

    All dimensions in millimetres.

    FIG. 4 TENSILE ELONGATION TEST SPECIMEN

    NOTE Weld reinforcement shall be removed.

    All dimensions in millimetres.

    FIG. 5 GUIDED BEND TEST SPECIMEN

    All dimensions in millimetres.

    FIG. 6 NICKBREAKTEST SPECIMEN

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    Bureau of Indian Standards

    BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promoteharmonious development of the activities of standardization, marking and quality certification of goods andattending to connected matters in the country.

    Copyright

    BIS has the copyright of all its publications. No part of these publications may be reproduced in any formwithout the prior permission in writing of BIS. This does not preclude the free use, in the course ofimplementing the standard, of necessary details, such as symbols and sizes, type or grade designations.Enquiries relating to copyright be addressed to the Director (Publications), BIS.

    Review of Indian Standards

    Amendments are issued to standards as the need arises on the basis of comments. Standards are alsoreviewed periodically; a standard along with amendments is reaffirmed when such review indicates that nochanges are needed; if the review indicates that changes are needed, it is taken up for revision. Users ofIndian Standards should ascertain that they are in possession of the latest amendments or edition byreferring to the latest issue of BIS Catalogue and Standards : Monthly Additions.

    This Indian Standard has been developed from Doc : No. MTD 19 (3271).

    Amendments Issued Since Publication

    Amend No. Date of Issue

    Amd. No. 1 May 2002

    Amd. No. 2 August 2007

    BUREAU OF INDIAN STANDARDS

    Headquarters:

    Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002.Telephones: 323 01 31, 323 33 75, 323 94 02

    Telegrams: Manaksanstha(Common to all offices)

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    Central : Manak Bhavan, 9 Bahadur Shah Zafar MargNEW DELHI 110002

    323 76 17323 38 41

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    AMENDMENT NO. 4 JUNE 2010

    TO

    IS 5504 : 1997 SPECIFICATION FOR SPIRAL

    WELDED PIPES

    ( First Revision )

    (Page 1, clause 1, first sentence) Substitute the following for the

    existing:

    This standard covers the requirements of spiral seam welded steel pipe over

    457 mm dia and up to 3 250 mm dia with wall thickness up to 25 mm inclusive.

    (MTD 19)

    Reprography Unit, BIS, New Delhi, India