IS 1852 1985 Rolling and cutting tolerances for hot

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IS 1852 1985,Reaffirmed 2003,Indian Standard,SPECIFICATION FOR. ROLLING AND CUTTING TOLERANCES FOR,HOT ROLLED STEEL PRODUCTS. Fourth Revision,Second Reprint AUGUST 1993,UDC 669 14 423 122 4 i 621 753 1. 0 Copyrighr 1986,BUREAU OF INDIAN STANDARDS,MANAK BHAVAN 9 BAHADUR SHAH ZAFAR MARG. NEW DELHI 110002,Cr 6 October 1986,IS I 1852 1985,Indian Standard.
SPECIFICATION FOR,ROLLING AND CUTTING TOLERANCES FOR. HOT ROLLED STEEL PRODUCTS,Fourth Revision,Structural Sections Sectional Committee SMDC 6. Chairman Refnesenting,SHRI i f DHAE KEC International Ltd Bombay. SHRI V K AWAWAL Hindustan Aluminium Corporation Ltd. SHRI N G SEIAUMA Alternate, SHBI R N AQQARWAL Steel Authority of India Ltd Bokaro Steel. Plant Bokaro,SHRI B K SRIVASTAVA Abnate, SHRI S BANERJEE St cel Re Rolling Mills Association of India.
SHRI N BHATTACHAHYA Garden Reach Shipbuilder Engineers Ltd. SHRI A P BHATNA AR Steel Authority of India Ltd Durgapur Steel. Plant Durgapur,SHRI P K DEBNATH Alternate, SHRI B B CHAKRAVERTI Superintendence Co of India Pvt Ltd. SERI A K SHOME Alternate,SHRI D S DESAI M N Dastur Co Pvt Ltd Calcutta. SHRI B K DUTTA Iron Steel Control Calcutta,SRRI S S SAHA Alternate. SHRI S K GANQULY Institution ofEngineers India Calcutta. SHRI S B GUPTA Directorate General of Supplies Disposals. Inspection Wing New Delhi, SHRI M P JASUA Steel Authority of India Ltd Research. Development Centre for Iron Steel,Cantiaued on zge 2.
Co right 1966,BUREAU OF INDIAN STANDARDS, This publication is protected under the Indian Copytight Act XIV of 1957 and. reproduction in whole or in part by any means except with written permission of the. publisher shall be deemed to be an infringement of copyright under the said Act. IS 18 52 1985,Continuedfrom page 1,Mem bcrs Rc wnting. JOINT DISECTOR S T A N D r4 IL D s Ministry of Railways. WAQON I RDSO,JOINT DIRECTOR STANDARDS,B S SB RDSO Allernate. SHRI A J Jos r Steel Authority of India Ltd Bhilai Steel. Plant Bhilai,SHRI A G RAMA RAO Alfcrnate, LT COL KULWANT S NQH Engineer in Chief s Branch Army Headquar. ters New Delhi,MAJOR S B PURI Alternate,SEBI S K MITRA Indian Iron Steel Co Ltd Burnpur.
SHRI S DU YTA Ahnate,SHRI P K MUHHICRJEE Braithwaite Co Ltd Calcutta. SHRI AYIT KUMAR,BEATTACEARY A Aherds, SEEI M V NAQESUAIA Metallurgical Engineering Consultants. India Ltd Ranchi,SEW KAYMAL PBAKASH Alternate,SHRI P V NAIU Richardson Cruddas Ltd Bombay. SERI N S R V RAJU Hindurtan Shipyard Ltd Visakhapatnam. SHIU D KRISHNAMURTEY Allernate,SERI S K SaDnU Jessop Co Ltd Calcutta. SIIRI S C CKAKRAVARTI Alternate,SHRI M C SA ANQDEA Stup Co Ltd Bombay.
SHRI M K CHATTEUJEE Afternale,Snd K R SENQUPTA Joint Plant Committee Calcutta. SHRI B P GHOSH Ahrnafe,SHRI S N SrN 3H EMC Steelal Ltd Calcutta. SHRI C K NAQ Aflsrrrale, SHBI K S SRINIVASAN National Buildings Organization New Delhi. SRRI A K LAL Alternate, SHRI K SUKYANARAYANAN Indian Aluminium Co Ltd Calcutta. SHJU G M MENON Allernafe, SERI D TEIRUVEN ADAM Tube Products of India Madras.
SERI IL V VIJAYAKA HAVAN Ahmdc 1, SHRI S G TUDEKAR Steel Authority of India Ltd Rourkela Steel. Plant Rourkela,SanrJ N BHAXBRY Ahernate, SHW K RA HAVENDRAN Director General BIS Ex o e Memb. Director Strut Met,IRIS S SETI,Joint Director Strut Met BIS. Co uud on RI 24,IS 1852 1985,Indian Standard,SPECIFICATION FOR. ROLLING AND CUTTING TOLERANCES FOR,HOT ROLLED STEEL PRODUCTS.
Fourth Revision,0 FOREWORD, 0 1 This Indian Standard Fourth Revision was adopted by the Indian. Standards Institution on 20 December 1985 after the draft fina ized by. the Structural Sections Sectional Committee had been approved by the. Structural and Metals Division Council, 0 2 This standard first published in 1962 was revised in 1967 1973 and. 1979 As a result of the experience gained during these years it has been. decided to revise this standard again The main modifications made in. this revision are, a Scope has been modified to cover the types of hot rolled. products Specific standards which refer to IS 1852 for rolling. and cutting tolerances are given in Appendix A for information. b Rolling and cutting tolerances for strips and sheets have been. extended to additional widths and range of thicknesses for tolera. nces have been rationalized, 03 This standard keeps in view the manufacturing and trade practices in. the countrv in this field Assistance has also been derived from the follow. ing IS0 Standards, a IS0 657 V Hot rolled steel sections Part V Equal leg angles.
and unequal leg angles Tolerances for metric and inch series. b IS0 1035 IV Hot rolled steel bars Part IV Tolerances of. round square and flat bars Metric series, c IS0 657 13 Tolerances on sloping flange beam column and. channel sections, d IS0 4995 1978 Hot rolled steel sheet for structural quality. IS 1332 1985, 0 4 For the ljurposc of deciding whether a particular requirement of this. standard is complied with the final value observed or calculated expres. sing the result of a test or analysis shall be rounded off in accordance. with IS Y 1960 The number of significant places retained in the. rounded off value should be the same as that of the specified value in this. 1 1 This standard lays down rolling and cutting tolerances for hot rolled. structural steel beams channels equal and unequal leg angles tee bars. bulb angles round and square bars other than bars meant for fasteners. flats plates strips and sheets rollecl from structural steels including. medium and high strength steels, 1 1 1 A list of Indian Standards covering material and dimensions of. various hot rolled sections is given in Appendix A for irlformntion. 1 2 This standard does not cover dimensional tolerances for carbon and. alloy constructional steel products which are covered by IS 3739 1972t. 1 3 For any specific end uses such as shipbuilding machine components. pressure vessels etc special tolerances finer than those specified in this. standard reference shah be made to the appropriate Indian Standard. if available or otherwise these shall be as agreed to between the purchaser. and the supplier,2 TERMINOLOGY, 2 1 For the purpose of this standard the definitions given in the appro.
priate Indian Standards on rolled steel products and those given in the. relevant parts of IS 1956 1976 shall apply,3 CALCULATION OF NOMINAL WEIGHT. 3 1 The nominal weight of hot rolled steel products shall be calculated on. the basis that steel weighs 7 85 g cm3,Rules for rounding off numerical values reuisrd. tDimensional tolrrancrs for carbon and alloy constructional test products. Glossnry of towns reIntinS to iron and steel,1s 1852 ii85. 4 ROLLING TOLERANCE FOR STRUCTURAL STEEL SECTIONS,4 1 Beams and Columns. 4 1 1 Depth The tolerance on depth of beams shall be as follows. De th Tolerance,Over Up to and,200 400 f 3 0,400 600 f 4 0.
NOTE Tolerances specified above for depth of up to and including 200 mm. will remain in force for a period of 4 years from the date of publication of this. standard At the end of this period the above provision shall stand amended. as f 2 0 mm, 4 1 2 Width of Flanee The tolerance on flange width shall be as. Width of Flange Tolerance,Over Up to and,100 125 f 2 5. 125 250 f 4 0, 4 1 3 Flanges Out of Square or Out of Parallel The flanges shall be. parallel within the following tolerances see Fig 1. Width of Flange B,Over Up to and,including TM ax y. 100 3 0 mm,100 250 3 percent of flange,IS t 1852 1985.
Back of square and centreline of web to be parallel when measuring out of square. FIG 1 OUT OF SQUAREOF FLANQE, 4 1 4 Off centre of Web The off centre of the web shall be within the. following limits SGCFig 2,FIG 2 OFF CENTRE WEB,Depth of Section Off Ccntre of Web. Over Up to and,300 450 4 0,450 600 5 0, 4 1 5 Weight The tolerance on weight per metre shall be f 2 5. percent or f 4 percent for steel conforming to Fe 310 O of IS 1977. 1975 of the weight per metre specified in Table 1 of IS 808 1964t. Table 1 of IS 808 Part 1 1973 and Table 1 of IS 808 Part 2 19789. 4 1 6 Camber and Sweeb The permissible limits for camber and sweep. shall be 0 2 percent of the length see Fig 3,Fro 3 MEASUREMENT OF CAMBER AND SWEEP. Specification for structural steel ordinary quality second revision. Wpecification for rolled steel beam channel and angle sections rcuiscd. Dimensions for hot rolled steel sections Part 1 MB series Beams second rcuirion. Dimensions for hot rolled steel srctions Part 2 Columns SC series second. IS 1852 1985,4 2 Channels, 4 2 1 Depth I to1eranc o on depth of channels shall be as follows.
Depth Tolerance,Over Up to and,200 400 f 3 0, 4 2 2 Width of Flange The tolerance on flange width up to and includ. ing 100 mm shall he f 2 mm, 4 2 3 Flanqes Out of Square or Out of Parallel The flanges shall be. parallel with in 1 in 60 tolerances see Fig 4,Fm 4 FLANGESQUT OF SQUARE. OR OUT OF PARALLEL, 4 2 4 Flatness of Web The tolerance on flatness of outer face of web. shall be as follows see Fig 5,Convexity Not permitted.
Concavity 15 percent of nominal thickness,IS 1852 1985. L CONCAVI TY,FIG 5 FLATNESS OF WEB, 4 2 5 Camber and Sweep The maximum permissible camber and sweep. for channels shall be 0 20 percent of the length see Fig 6. Fro 6 MEASUREMENT OF SWEEP, 4 2 6 Weight The tolerance on weight per metre shall be f 2 5. percent or f 4 percent for steel conforming to Fe 310 O of IS 1977. 1975 of the weight per metre specified in Table 2 of IS 808 1964t. ani in Table 1 and Table 2 of IS 808 Part 3 19791, Specification for structuralsteel ordinary quality second reuision. iSpecification for rolled steel beam channel and angle sections revised. Dimensions for hot rolled stee beam channel and angle scclions Part 3 Channel. MC and MCP series second revision,IS 1852 1985,4 3 Equal and Unequal Leg Angles.
4 3 1 Ly Length The tolerance on leg length shall be as follows. Leg Length Tolerance,Over Up to and,45 f I 5 mm,45 100 2 0 mm. 100 f 2 percent, 4 3 1 1 In the case of unequal leg angle 45 x 30 mm the tolerance. on longer leg length shall be 2 f i mm The tolerance on the shorter leg. length shall be specified in 4 3 1, NOTFI The provision contained in 4 3 1 1 shall be applicable only for a period. of 3 years from the date of publication of this Standard after which it shall stand. 4 3 2 Out of Square The legs of angles shall be perpendicular to each. other within a tolerance of fl 0 degree, 4 3 3 The differences between the leg lengths of equal leg angles shall. be limited to 75 percent of the total tolerance plus and minus specified. on the leg length, 4 3 4 Comber The permissible limits for camher ste Fig 7 shall be.
as follows,Leg Length Camber,Less than 100 To be agreed between the manu. facturer and the purchaser,Including and over 100 0 2 percent of length. FIG 7 CAMBER INANGLES,IS 1852 1985, 4 3 5 Weight The tolerance on weight per metre shall be f 5 percent. in the case of angles 3 mm in thickness and 5 3 percent in the case of. angles over 3 mm in thickness of the weight per metre specified in. IS 808 Part 5 1976 and IS 808 Part 6 1976t,4 4 Tee Bars. 4 4 1 Depth The tolerances on depth of rolled tee bars shall be as. Depth Tolerance,Over Up to and Plus Minus,mm mm mm mm.
So 100 2 5, 4 4 1 1 Tee bars produced by slitting beam sections shall have the. same tolerance as the corresponding beams from which they are pro. duced except that an additional reduction in depth of 2 mm due to slitt. ing shall be permitted, 4 4 2 Width of Flange The tolerance on flange width shall be as. Width Tolerance,Up to and including 100 f 2 O mm,Over 100 f 2 percent. 4 4 2 1 The tolerance on width of flange for tee bars produced by. splitting beam sections shall be the same as for the corresponding beams. from which they are produced, 4 4 3 Out of Square The flange shall be perpendicular to the web. within a tolerance of 1 in 60 In the case of slit tees the tolerance shall. be the same as specified for the corresponding I section from which the. tees are slit, 4 4 4 Camber The maximum permissible camber shall be 0 20 percent.
of the length, 4 4 4 1 Slit tee bars shall have the same tolerance on camber as the. corresponding beams from which they are produced, Dimensions for hot rolled steel beam channel and angle sections Part 5 Equal leg. angles second revision, tDimension for hot rolled steel beam channel and angle sections Part 6 Unequal. SHBI R N AQQARWAL Steel Authority of India Ltd Bokaro Steel Plant Bokaro SHRI B K SRIVASTAVA Abnate SHRI S BANERJEE St cel Re Rolling Mills Association of India Calcutta SHRI N BHATTACHAHYA Garden Reach Shipbuilder amp Engineers Ltd SHRI A P BHATNA AR SHRI P K DEBNATH Alternate

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