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.

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“Invent a New India Using Knowledge”

“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru

“Step Out From the Old to the New”

“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan

“The Right to Information, The Right to Live”

“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam

“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 1863 (1979): rolled steel bulb flats - [CED 7:Structural Engineering and structural sections]

IS : 1863 - 1979

Indian Standard SPECIFICATION FOR

ROLLED STEEL BULB FLATS

f First Revision )

Structural Sections Sectional Committee, SMDC 6

Chairman Representing

SHRI M. DHAR Kamani Engineering Corporation Ltd, Bombay

Members SHRI S. BANERJEE Steel Re-Rolling Mills Association of India, Calcutta SWRI N. BHATTACHARYA Garden Reach Shipbuilders and Engineers Ltd,

Calcutta SHRI B. B. CHAKRAVERTI Superintendence Co of India ( Pvt ) Ltd, Calcutta

SHRI A, K. SHOME ( Alternate ) SHRX N. S. CHATTREE Steel Authority of India Ltd, Bhilai Steel Plant,

Bhilai SHRI V. MUKUNDAN ( Alternate )

SHRI D. S. DESAI M. N. Dastur & Co Pvt Ltd, Calcutta SHRI D. GADH Tata Iron & Steel Co Ltd, Jamshedpur

SHRI G. R. NAYAR ( Altcrnatc ) SHRI A. K. GUHA Inspection Wing, Directorate General of Supplies

& Disposals, New Delhi SHRI P. C. MU~TAPI ( Alkmate )

SHRI M. P. JASUJA Research & Development Organization, Hindustan Steel Ltd, Ranchi

JOINT DIRECTOR STANDARDS Ministry of Railways ( WAOON II ), RDSO

JOINT DIRECTOR STANDARDS ( B & S ), RDSO ( Alternate )

SHRI OM KHOSLA EMC Projects Pvt Ltd, Calcutta SHRI S. N . SINGH ( Alternate )

SHRI P. LAXMINARAYANA Hindustan Shipyard Ltd, Vishakhapatnam \ SHRI V. S. NARAYANARAO ( Alternau )

SHRI M. L. MEHTA Metallurgical & Engineering Consultants ( India ) Ltd, Ranchi

SHRI KAMMAL PRAKASH ( Alternate ) SHRI S. K. MITRA Indian Iron & Steel Co Ltd, Burnpur SHRI: P. K. MUKHERJEE The Braithwaite & Co Ltd, Calcutta

( Continued on page 2 )

@ Copyright 1979

INDIAN STANDARDS INSTITUTION

This.‘&lication is protected undor the Indian Copyright Acr (XIV of 1957 ) and reproduetio

I! in whole or io part by any moans except with written permission of the

publishor? all be deemed to be an infringement of copyright under the said Act. L,

IS : 1863 - 1979

( Conhwedfrom page 1 )

Members Reprcscnting

SHRI D. B. NAIK Engineer-in-Chief’s Branch, Army Headquarters, New Delhi

SHRI G. S. SONDH ( Alternate ) SHRI P. V. NAIK SHRI V. Y. PHATAK

Richardson & Cruddaf Ltd, Bombay SteelRA;;LE;;ty of India Ltd, Rourkela Steel Plant,

o SHRI V. P. AGRAWAL ( Alfemate )

SHRI P. S. RANGAVITTALAN Iron & Steel Control, Calcutta SHRI S . ROY Steel Authority of India Ltd, Bokaro Steel Plant,

Bokaro SWRI K. V. Rao ( Allnnale )

SHRI S. K. SADHU Jessop & Co Ltd, Calcutta SHRI S. C. CHAKRARARTI ( Alternate )

SHRI N. S. SAMBASWAM Tube Investment of India Ltd, Madras SHRI A. S. SHETT~ ( Alternate )

SHRI M. C. SARANGDIIAR Stup ( India ) Ltd, Bombay SHRI M. K. CHATTERJEE (Ahmole )

SHRI P. K. SOM Institution of Engineers ( India ), Calcutta SHRI D. SRINIvASAN Joint Plant Committee, Calcutta

SHRI B. P. GHOSH ( Alternate ) SHRI K. S. SRINIVASAN National Buildings Organization, New Delhi

SHRI SUNIL BARY ( Alhnafc ) SHRIK.SURYANARAYANAN Indian Aluminium Co Ltd, Calcutta

SHRI R. K. MEHTA ( Ahmate ) SWRI C. R. RAMA RAO, ‘Director General, IS1

Director ( Strut & Met ) Secretay

SHRI M. S. NAGARAJ

Deputy Director ( Strut & Met ),

( Ex-ojicio Member )

ISI

IS : 1863 - 1979

Indian Standard SPECIFICATION FOR

ROLLED STEEL BULB FLATS

f First Revision )

0. FOREWORD

0.1 This Indian Standard ( First Revision) was adopted by the Indian Standards Institution on 30 April 1979, after the draft finalized by the Structural Sections Sectional Committee had been approved by the Structural and Metals Division Council.

0.2 This standard was first published in 1961 as a part of steel economy programme of ISI. In this revision, the standard has been brought in line with ISO/DIS 4974 Dimensions of hot-rolled steel sections - bulb flats ( metric series ) - dimensions, sectional properties and tolerances.

0.3 Table 1 A covers bulb flats which are supplementary to the range of sizes not covered in ISO/DIS 4974. These may be available by mutual arrangement with the supplier.

0.4 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS : 2-1960*. The number of significant places retained in the rounded off value should he the same as that of the specified value in this standard.

1. SCOPE

I.1 This standard specifies dimensions, sectional properties and dimensional tolerances of hot-rolled steel bulb flats.

2. MATERIAL

2.1 The bulb flats may be manufacrured from steel conforming to IS : 226-1975t, IS : 961-1975$, IS : 2062-1969s or IS : 3039-196511 as appropriate.

NOTE - As these sections are intended mainly to be used in shipbuilding, the steel shall, when so required, conform to the specification quoted by the purchaser.

*Rules for rounding off numerical values ( revised ) . tspecification for structural steel ( standard quality ) (Jfih revision ). tSp$ifrcation for structural steel ( high tenslIe ) ( Jeconf wisian ). $Specl%ation for structural steel ( fusion we!dmg quahty ) (/A I/Specifi+i~ for structural steel ( shlpbulldmg quaky ).

rezGion ).

IS : 1863 - 1979

3. DESIGNATION

3.1 The bulb flats shall be designated by the width (b) and thickness (1).

Example: 200 x 10

4. DIMENSIONS

4.1 The dimensions of bulb flats shall be as given in Tables 1 and 1A.

DESIC- NATION

(1)

80 x 6 7

100x 7 R

120x7 8

140x 7 8

160x 7 8 9

.i * %

TABLE 1 BULB FLATS -DIMENSIONS AND SECTIONAL PROPERTIES ABOUT XX AXIS

( Clauses 4.1 and 5.5 )

30”

X cx

- 9

! 1-p

J I ~__... - e I it

..--i

r2

;_._-_--___--___-~xii..__. 1 '

‘L-r2 1

MASS SECTIONAL DIMENSIONS S~JRPACE CENT- SECTIONAL AREA

kg/In cm?

(2) (3)

4.87 6.20 5.50 7.00

6.86 8.74 7.65 9.74

8.25 10’5 9.19 11.7

9.74 12.4 10.8 13.8

11.4 14.6 12.7 16.2 14.0 17’8

r_-__-h-___ AREA b t c r1

mm mm mm mm my/m

(4) (5) (6) (7) (8)

80 6 14 4 0.192 7 14 4 0.194

100 ii 15.5 4.5 0.236 15.5 4.5 0.238

120 7 17 5 0.278 8 17 5 0.280

140 7 19 5.5 0.320 8 19 5.5 0.322

160 7 22 6 0.365

f 22 22 if 0.367 0.369

ROID PROPERTIES

-----I G Ix &

mm Cm' cm3

(9) (10) (11)

4.78 39.0 8.15 4.69 43.3 9.24

5.87 85.3 14 .5 5.78 94.3 16.3

7.07 148 21.0 6.96 164 23.6

8.31 241 29.0 8.18 268 32.5

9.66 373 38% 9.49 411 43.3 9.36 448 47.9

( Continued)

IS : 1863 - 1979

DESIO- NATION

hlAss SECTIONAL DIMENSIONS SuRFAce CENT- AREA

k/m cm2

(1) (2) (3)

180x 8 14.8 18.9 9 16.2 20.7

10 17.6 22.5

200 x 9 18.5 23.6 10 20.1 25.6 11.5 22.5 28.6

220 x 10 22.8 29.0 11’5 25.4 32.3

240 x 10 25.4 32.4 11 27.4 34.9 12 29.3 37.3

260 x 10 28.3 36.1 11 30.3 38.7 12 32.4 41.3

280 x 11 33.5 42.6 12 35.7 45.5

300 x 11 36.7 46.7 12 39.0 49.7 13 41.5 52.8

320 x 12 42.5 54.2 13 45.0 57.4

340 x 12 14

370 x 13 15

400 x 14 16

46.1 58’8 51.5 65.5

54.6 69.6 60.5 77.0

63.9 81.4 70.2 89.4

430 X’ 1.5 .A 73.9 II ,; 80.6

c

TABLE I BULB FLATS -DIMENSIONS AND SECTIONAL PROPERTIES ABOUT XX AXIS - Contd

94.1 103

b

mm

(4)

180

200

220

240

260

280

300

320

340

370

400

430

mm mm

(5)

: 10

1: 11.5

10 11.5

10 11 12

10 11 12

11 12

:I 13

1’:

12 14

13

(6) (7) (8) (9) (10) (‘1)

25 25 25

28 8

2288 8”

31 9 0.503 13.4 1 400 105 31 9 0.506 13.1 1 550 118

34

3”:

3”: 37

::

43 43 43

46 46

49 49

53.5 15 53.5

14 58 16 58

15 62.5 17 62.5

mm

5 7

10 10 10

11 11 11

12 12

13 13 13

15 15

16.5 16.5

18 18

19.5 19.5

m?/m mm

0.411 10.9 0.413 10.7 0.415 10.6

0.457 12.1 0.459 11.9 0.462 11.7

0.547 14.7 0.549 14.6 0.551 14.4

0.593 16.2 0.593 16.0 0.595 15.8

0.637 17.4 0.639 17.2

0.681 18.9 0.683 18.7 0.685 18.5

0.728 20.1 0.730 19.9

0.772 21.5 0.776 21.1

0.840 23.5 0.844 23.0

0.908 25.5 0.912 25.0

0.97C 27.4 0.980 26.9

SECTIONAL PROPERTIES

r-_h___

cm’ cm3

609 55.0 663 61.8 717 67.8

841 77.7 1021 85.0 1 130 96.2

I 860 126 2 000 137 2 130 148

2 470 153 2 610 162 2 770 175

3 330 191 3 550 206

4190 222 4 460 239 4 720 256

5 530 274 5 850 294

6 7G0 313 7 540 357

9 470 402 10 400 4%

12 900 507 14 200 568

17 300 628 18 900 JO0

7

*b 5

IS I 1863 - 1979

TABLE 1A SUPPLEMENTARY LIST OF BULB FLATS -DIMENSIONS AND SECTIONAL PROPERTIES ABOUT XX AXIS

( Clnuses 4.1 nnd 5..5 1

'2 X

b

DESK+ MASS SECTIONAL DIMENSIONS SURPACE CENT- SECTIONAL NATION AREA

kg/m 10%nms

(1) (‘4 (3)

120x 6 7.83 9.3

140 x 10 13.1 16.6

160 x 10 15.3 18.4

180 x 11 19.0 18.9

220 x 9 21-O 26.8

280 x 10 30.3 39’8 13 48.4 48.4

320 x 14 47.5 60%

340 x 13 48.8 62.2 15 54.2 69.2

370 x 16 63.5 80.7

400 x 15 67.8 85.4

430 x 14 70.6 89.1 20 90.8 115

71

_-----A----~ ARK,,

b t c

mm mm mm mm ma/m

(7) (8)

7-A--7 ROLD

G x

PROPERTIES

&

mm 10amm4 103mmq

(4) (5) (6)

120 6 17

140 10 19

160 10 22

180 11 25

220 9 31

280 10 40 13 40

320 14 4G

340 13 49 15 49

370 16 53.5

400 15 58

430 15 62.5 17 62.5

5 O-276

5.5 0.326

6 0.371

7 0.417

9 O-50

:f 0.641 0.635

14 0.732

15 0.774 15 0.778

16.5 0.886

18 0.910

19.5 0.975 19’5 0.986

(9) (‘0) (‘1)

7.20 133 18.4

7.92 316 39.8

9.23 485 52.5

10.5 771 73.5

13.6 1 300 95.3

17.8 3130 178 17.0 3 760 221

19.7 6 170 313

21.3 7 160 335 20.9 7 920 379

22.8 11000 481

25.2 13 600 537

27.3 16 500 59-1 26.3 21 200 804

,NOTE - The sections included in Table 1 A are not covered in ISO/DIS 4974. These gay be available by mutual arrangement with the supplier.

‘8 ‘. *I

IS: 1863 - 1979

5. TOLERANCES

5.1 Width and Thickness - Tolerances on width and thickness shall be as given in Table 2.

TABLE 2 TOLERANCES ON WIDTH AND THICKNESS

\VIDTH, b r-L7 OW!r Up to and

Including

mm mm

(1) (2)

- 120

120 180

180 300

300 430

THICKNESS, t r---h------\ Including Up to and and Over Including

mm nun

(3) (4) (5)

6.0 8.0 AZ 1.5

7.0 11.0 ?J= 2.0

9.0 13.0 =k 3.0

12.0 20.0 =I= 4.0

TOLERANCE .

WPDYTTH

TOLERANCE ON THICKNESS

r__-_---\ Over Under

mm mm

(6) (7)

+ 0.7 - 0.3

+ 1.0 - 0.3

+ 1.0 - 0.4

+ 1.2 - 0.4

5.2 Radius at Corner - The radius of curvature r1 at corners shall be within the limits given in Table 3.

TAB= 3 RADIUS AT CORNER

THICKNESS r__-_h--__~ Over Up to and

Including

mm mm

(1) (2)

- 6 6 9 9 13

13 17

RADIUS OF CURVATURE ~2 Ah%

mm

(3)

1.5

2.0 3.0

4.0

5.3 Straightness - The maximum permissible variation in straightness when measured over the entire length shall be 0.003 5 x length.

5.4 Length - The cutting tolerance on length shall be + ho” mm. The

bulb flats may be supplied to tighter length tolerances subject to agreement between the purchaser and the supplier.

5.5 $4 ht -The tolerance on weight shall be f 2.5 percent of the mass per unit * en+gth of sections given in Table 1. $

44 7

INDIAN STANDARDS

ON

STRUCTURAL SHAPES

IS:

608 (Part I )-1973 Dimensions for hot rolled steel sections : Part I MS series (sccon~ revision )

808 (Part II )-1978 Dimensions for hot rolled steel sections: Part II Column-SC series ( second revision )

808 (Part V )-1976 Dimensions for hot rolled steel sections: Part V Equal leg angles’ ( shond revision )

808 ( ParfVI j-1976 Dimensions for hot rolled steel sections: Part VI Unequal leg angles ( second revision )

811-1965 Cold formed light gauge structural steel sections ( revised ) 1173-1978 Hot rolled and slit steel, tee bars ( second revision ) 1252-1958 Rolled steel sections, bulb angles 1730 ( Part I )-1974 Dimensions for steel plate, sheet and strip for structural and general

engineering purposes : Part I Plate (J;rst revision ) 1730 (Part II l-1974 Dimensions for steel nlate. sheet and strin for structural and general

-1730 ( Part

1731-1971

engineering purposes : Part II Sheet’ (lfrst revision )’ III )-1974 Dimensions for steel plate, sheet and strip for structural and general engineering purposes : Part III Strip (jirst revision ) Dimensions for steel flats for structural and general engineering purposes (Jirst revision )

1732-1971

1852-1973 1863-1979 23141963 2713-1969 3443-1966 3908-1966 3909-1966 3921-1966 3954-1966 3964-1967 5384- 1969 5488-1969 6445-1971 6449-1971 6475-1971 6476-1971

Dimensions for round and square steel bars for structural and general engineering purposes (Jirst revision ) Rolling and cutting tolerances for hot-rolled-steel products ( second revision ) Rolled steel bulb flats (jrs# revision ) Steel sheet piling sections Tubular steel poles for overhead power lines (,l;rst revision ) Crane rail sections Aluminium equal leg angles Aluminium unequal leg angles Aluminium channels Hot rolled steel channel sections for general engineering purposes Light rails Aluminium I beam Dimensions for hot rolled steel plates for ship’s hull structures Aluminium tee sections Aluminium bulb angles for marine use Aluminium tee bars for marine use Aluminium bulb plates for marine use

SP: 6 (I)-1964 IS1 Handbook for structural engineers, No. 1 Structural steel sections ( revised )