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इंटरनेट मानक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. “जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ” Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru “The Right to Information, The Right to Live” “Step Out From the Old to the New” IS 3459 (2004): Small Wire Ropes [MED 10: Wire Ropes and Wire Products] “!ान $ एक न’ भारत का +नम-ण” Satyanarayan Gangaram Pitroda ““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee”” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS 3459:2004 W1-dhT? ( Indian Standard SMALL WIRE ROPES — SPECIFICATION (’SecondRevision) ICS 77.140.65 0 BIS 2004 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 December 2004 Price Group 3 Wire Ropes and Wire Products Sectional Committee, ME 10 FOREWORD This Indian Standard (Second Revision) wasadopted bytheBureau of Indian Standards, afterthe draft finalized bythe Wire Ropes and Wire Products Sectional Committee had been approved bythe Mechanical Engineering Division Council. This standard was originally published in 1966and revised in 1977. Inthe first revision, the following changes were made: a) The following constructions were added inview oftheir increased use: 1) 6x37 (18/12/6-1) 2) 17x7 (6-1) 3) 18x7 (6-1) b) The following constructions were deleted because oftheir limited use: 1) 6x12 (12-tibre) 2) 6x24 (15/9-fibre) c) The requirements common to various types of wire ropes were deleted and a reference was made to IS 6594:1977 ‘Technical supply conditions for wire ropes and strands (first revision)’. d) Breaking load ofwire ropes manufactured ffom steelwires oftensile designation 1960was added. e) Provision of supplying the wire ropes with wires strand core (WSC) was made. Inthis revision, the following important changes have been made: a) Designation ofvarious construction ofwireropes havemodified inlinewith IS6594:2001 ‘Technical supply conditions for steel wire ropes and strands (second revision)’. b) 6 x26SW,6 x31SWand6 x36SWconstructions havebeenincluded under onegroup inthis standard, considering the market demand. c) Provision for use of sofi fibre (jute) core isalso included. d) Mass and breaking force given invarious tables havebeen modified asper the revised mass factor (K) and breaking force factor (K’) given inIS 6594. For the purpose of deciding whether aparticular requirement of this standard iscomplied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS2:1960 ‘Rules for rounding offnumerical values (revised)’. The number ofsignificant places retained inthe rounded off value should be the same asthat ofthe specified value inthis standard. IS 3459:2004 Indian Standard SMALL WIRE ROPES — SPECIFICATION (Second l?evision) 1SCOPE 4 ROPE SIZE AND TOLERANCE This standard covers the requirements for small wire The size of the rope designated as nominal diameter ropes for general purposes. The following rope shallbeoneofthose given inTables 1to5.The actual constructions, types, rope grades, cores and range of diameter of the rope shall be within the specified sizes are included inthis standard as identified by ‘x’ tolerances shown inrespective tables. marrc Construction Type Rope Graa% --Corer-Slize Range Ref to (Dia) Table 1770 1960 Fibre Steel mm (1) (2) (3) (4) (5) (6) (7) (8) 6 X7(6.1) Roundstrand x x x x 2–7 1 6 X 19(12/6.1) x x x x 3–7 2 6 X 37(18/12/6.1) x x x x 6–7 3 6 X26 SW(10-5+5-5-1) x x x x 6-7 4 6 X31 SW(12-6+6-6-1) x x x x 6–7 4 6 x36 SW(14.7+7-7-1) t x x x x 6-7 4 17x7 [11 x 7(6-1 ):6x 7(6-1) Ylultiround strand x x x x 6–7 5 ]8x7[12 x 7(6.1 ):6 x7(6-1) ‘otationresistant x x x x 6–7 5 i- 2 REFERENCES 5MINIMUM BREAKING FORCE The following standards conta i n provisions, which Minimum breaking force ofropes shall beasgiven in through reference inthis text cons t itute provisions of Tables 1to 5. this standard. At the time of publication, the editions 6GENERAL REQUIREMENTS indicated were valid. All standards are subject to revision, and parties to agreements based on this Thewire rope shall conform to IS6594 and shall also standard are encouraged to investigate the possibility meet the requirements given in 6.1 to 6.5. of applying the most recent editions of the standards 6.1 Core indicated below: 6.1.1 Fibre Core ISNo. Title Use of soft fibre (jute) core as per IS 1804 is also 1804:1996 Steel wire ropes— Fibre main cores permitted. — Specification (third revision) 1835:1976 Specification for round steel wire for 6.1,2 Steel Core ropes (third revision) Where steelcore isused, theconstruction shall bethat 2363:1981 Glossary of terms relating to wire of strand (CWS). ropes ~rst revision) 6.2 Joints 6594:2001 Technical supply conditions for steel wireropesandstrands(secondrevision) Tucked joints in wires during rope making are permitted for wires of0.5 mm diameter and smaller. 3 TERMINOLOGY 6.3 Lay Forthe purpose ofthis standard, the definitions given in IS2363 shall apply. The layofthe rope shall be right hand ordinary lay. 1 IS3459:2004 Table 1 Breaking Force and Mass for 6 x 7 (6-1) Construction Ropes (Clauses 4,5 and 6.4) 6x7 (6-1 )+CF 6x7 (6-1 )+CWS Nominal Tolerance on Approximate Mass Minimum Breaking Force Corresponding toRope Grade of Diameter Nominal Diismetcr 1770 1960 . . A FibreCore SteelCore ‘Fibre Core SteelCore’ FibreCore SteelCore (CF) (Cws) (CF) (Cws) (CF) (Cws) mm Percent kg/100m kg/100m kN kN kN kN (1) (2) (3) (4) (5) (6) (7) (8) 2 +7 I.43 1.57 2.4 2.5 2,6 2.8 –1 3 +7 3.22 3.54 5.3 5.7 5.9 6.3 -1 4 +6 5.72 6.29 9.4 10,2 10.4 11.3 –1 5 +6 8.94 9.83 14,7 15.9 16.3 17.6 -1 6 +5 12.9 14,2 21 23 23 25 -1 7 +5 17.5 19.3 29 31 32 34 –1 NOTE — Tocalculate theaggregatebreaking force,multiply thefigures inCOI5and7by 1,111andinCOI6and8by 1.193. 6.4 Mass 6.5 Preforming The approximate rope masses given in Tables 1to 5 All ropes except those of multi round strand rotation are of fully greased ropes. The ropes that are not resistant ropes shall be preformed unless otherwise lubricated may be Iighter. agreedtobetweenthepurchaser andthemanufacturer. 1S3459:2004 Table 2 Breaking Force and Mass for 6 x 19 M (12/6-1) Construction Ropes (Clauses 4,5 and 6.4) 6x19 M(12/6-l)+CF 6x19 M(I 2/6- l)+CWS Nominal Tolerance on Approximate Mass Minimum Breaking Force Corresponding toRope Grade of Diameter Nominal Diismeter I770 1960 < A F FibreCore SteelCore FibreCore SteelCore- FibreCore SteelCore (CF) (Cws) (CF) (Cws) (CF) (Cws) mm Percent kg/100m kg/100m kN kN kN kN (1) (2) (3) (4) (5) (6) (7) (8) 3 +7 3,11 3.43 4.9 5.3 5.4 5.9 -1 4 +6 5.54 6.09 8.7 9.4 9.6 10.4 -1 5 +6 8.65 9.52 13.6 14.7 15.1 16.3 -1 6 +5 12. 5 13.7 19.6 21 22 23 -1 7 +5 17.0 18,6 27 29 30 32 –1 NC)TE— To calculate theaggregatebreaking force, multiply thefigures in COI5aod7by 1,163andincol 6and8by 1.25. 7GALVANIZING one sideof the reel and a suitabletag giving the same informationmaybeattachedontheothersideofthereel. When required, galvanizing shall conform to Type B of IS1835unlessspecifiedotherwisebythepurchaser. 8.2 BIS Certification Marking 8 MARKING The product may also be marked with the Standard Mark. 8.1 The size, construction, rope grade, lay, core, coatingandlengthofwirerope,reel/coil number along 8.2.1 TheuseoftheStandard Markisgoverned bythe with the order number of purchaser and any other provisionsofBureau ofIndian Standards Act, 1986and marking whichmay bespecifiedbythepurchaser shall theRulesandRegulationsmadethereunder. Thedetails be legibly mentioned on a suitable tag securely of conditions under which a licensefor the use of the attached,when wire ropesaresupplied incoils.Incase Standard Mark may be granted to the manufacturers wire ropes are supplied inreels, the information may orthe producers may be obtained from the Bureau of bestenciled on both sides ofthe reels or stenciled on Indian Standards. 3 ..”. -- T IS 3459:2004 Table 3 Breaking Force and Mass for 6 x 37 M (18/12/6-1) Construction Ropes (Clauses 4,5 and 6.4) 6x37 M(I 8/12/6-1 )+CF 6x37 M(18/12/6-l)+CWS ( -.1 Nominal Tolerance on Approximate Mass Minimum Breaking Force Correspondiog toRope Grade of Diameter Nominal Diameter 1770 1960 . . FibreCore Steel Core ‘Fibre Core Steel Corex ‘Fibre Core SteelCore> (CF) (Cws) (CF) (Cws) (CF) (Cws) mm Percent kg/100 m kg1100m kN kN kN kN (1) (2) (3) (4) (5) (6) (7) (8) 6 +5 12.5 13.7 18.8 20 21 22 –1 7 +5 17.0 18.6 26 28 28 31 –1 NOTE — To calculate theaggregatebreaking force, multiply thefigures inCOI5and7by 1.212andinco]6and8by 1.302. .. IS 3459:2004 Table 4 Breaking Force and Mass for 6 x 26 SW (10–5+5-5-1), 6 x 31 SW (12--6+6-f&I) and 6 x 36 SW (14-7+7-7-1) Construction Ropes (Clauses 4,5 and 6.4) 6x26 SW(10-5+5-5-1)+CF 6x26 SW(10-5+5-5-1 )+CWS 6x31 SW(12-6+6-6-l)+CF 6x31 SW(12–6+6-6-l)+CWS 6x36 SW(14-7+7-7-1)+CF 6x36 SW(14–7+7-7-1)+CW! Nominal Tolerance on Approximate Mass Minimum Breaking Force Corresponding to Rope Grade of Diameter Nominal Diameter 1770 1960 / FibreCore SteelCore? FIbreCore A SteelCore> TFlbreLore SteelUore= (CF) ‘ (Cws) (CF) (Cws) (cl’) (Cws) 111111 Percent k,g/10001 kg/100m kN kN kN kN (1) (2) (3) (4) (5) (6) (7) (8) 6 +5 13.7 15.1 21 23 23 25 -1 7 +5 20,5 20.5 29 31 32 34 –1 NOTE — To calculate tbeaggregatebreaking force, multiply tbefigures inCOI5and7by 1,191andinCOI6and8by 1.28. 5