is.iso.16160.2005

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.

इंटरनेट मानक

“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda

“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/ISO 16160 (2005): Continuously Hot-Rolled Steel SheetProducts - Dimensional and Shape Tolerances [MTD 4: WroughtSteel Products]

1S/1S0 16160:2005

lndian Standard

CONTINUOUSLY HOT-ROLLED STEEL SHEETPRODUCTS — DIMENSIONAL AND SHAPE

TOLERANCES

Ics 77.14050

~ BIS 2007

BUREAU OF INDIAN STANDARDSMANAK BFIAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

Novetnber 2007 Price Group 3

Wrought Steel Products Sectional Committee, MTD 4

NATIONAL FOREWORD

This Indian Standard which is identical with ISO 16160 : 2005 ‘Continuously hot-rolled steel sheetproducts — Dimensional and shape tolerances’ issued by the International Organization forStandardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of theWrought Steel Products Sectional Committee and approval of the Metallurgical Engineering DivisionCouncil.

This Indian Standard has been taken up to align it with ISO 16160:2005 by adoption under dualnumbering system.

The text of ISO Standard has been approved as suitable for publication as an Indian Standard withoutdeviations. Certain conventions are, however, not identical to those used in Indian Standards.Attention is particularly drawn to the following:

a) Wherever the words ‘International Standard’ appear referring to this standard, they shouldbe read as ‘Indian Standard’.

b) Comma (,) has been used as a decimal marker in the International Standards, while inIndian Standards, the current practice is to use a point (,) as the decimal marker.

In reporting the results of a test or analysis made in accordance with this standard, if the final value,observed or calculated, is to be rounded off, it shall be done in accordance with IS 2:1960 ‘Rules forrounding off numerical values (revised)’.

1S/1S0 16160:2005

Indian Standard

CONTINUOUSLY HOT-ROLLED STEEL SHEETPRODUCTS — DIMENSIONAL AND SHAPE

TOLERANCES

1 Scope

This International Standard applies to dimensional and shape tolerances for all continuously hot-rolled steelsheet products.

Nate Hot-rolled steel strip and hot-rolled heavy thickness steel sheet coils are not covered by this InternationalStandard

2 Dimensional tolerances

Dimensional tolerances are given in Tables 1 to 9:

Table 1 — Normal thickness tolerances for hot-rolled sheet steel(including descaled sheet), coils and cut lengths

Dimensions and tolerances in millimetres

;pecified Thickness tolerance a

width for specified thicknesses b

0,8:< 1,5 , 1,5 <; 2,0 >2,0 <2,5 .2,5 <3,0 >2,0$4,0 .4,0 <5,0 >5,0 <6,0 .>6,0 <8,0 ~ 8,0 <10,0 >.lO,O <12,5

6001 200

+ 0,15 * 0,17 & 0,18 t 0,20 ~0,22 f 0,24 f 0,26 f 0,29 f 0,32 i 0,35

. 1200

.1500 f 0,17 +0,19 * 0,21 * 0,22 I. 0,24 f o,26 ~ 0,28 i 0,30 * 0,33 f 0,36

~1 500* 0,21 k 0,23 t 0,24 ! 0,26:1800 i 0,28 f 0,29 * 0,31 f 0,34 f 0,37

:1800 — — k 0,25 ~ 0,26 k 0,27 * 0,29 + 0,31 + 0,35 i 0,40 + 0,43

rh~ values specified do not apply to the uncropped ends for a total length “P of a mill edge coil. The total length “V would be calculated

xsing the following formula:

Total length “/” m metres =90

Thickness in milhmetres

‘rov!ded that the result was not greater than 20 m, incluswe of both ends.

1 For speclfled strength levels of )<e = 360 N/mmz and greater, increase the thickness tolerances by 10 % applylng normal rounding-off procedures

)Th(ckness IS measured at any point on the sheet not less than 25 mm from a sheared edge and 40 mm from a mill edge Points closer than these are

;ubject to negotiation

1

1S/1S0 16160:2005

Table 2 — Restricted thickness tolerances for hot-rolled sheet steel (including descaled sheet),coils and cut lengths


>pecified Thickness tolerance awidth for specified thicknesses b

0,8 :1,5 >1,5 <2,0 -.2,0 <2,5 >2,5 <3,0 3,0 <4,0 ~ 4,0 <5,0 >5,0 <6,0 >6,0 <8,0 -.8,0 <10,0 >10,0 <12,5

600>1 200 f 0,10 t 0,13 +-0,14 *0,15 f 0,17 +-0,19 ? 0,21 f 0,23 t 0,26 * 0,28

, 1200+0,12 +0,14 i 0,15 1 0,17 f 0,18 + 0,21 f 0,22. 1 500 + 0,24 t 0,26 f 0,29

15001800 — io,14 i 0,17 t 0,19 1 0,21 T 0,22 f 0,23 f 0,25 ~ 0,27 + 0,30

-1800 — * 0,20 i 0,21 i 0,22 * 0,23 f 0,25 f 0,28 * 0,32 ~ 0,36

Hw values specifieddo not apply to the uncropped ends for a total length “P of a mill edge coil. The total length “~ would be calculated

~s(ng the followlng formula

Total length “/” m metres =90

Thickness in md~metres

‘rowded that the result was not greater than 20 m, Inclusive of both ends

3 For specified strength levels of /<e = 360 N/mm2 and greater, Increase the thckness tolerances by 10 ‘A applying normal rounding-off procedures,

.1 Th(ckness IS measured at any point on the sheet not less than 25 mm from a sheared edge and 40 mm from a mill edge Points closer than these are

:ubject to negotiation

Table 3 — Width tolerances for coils and cut lengths (including descaled material), mill edge


Specified width I Tolerance

< 1500 +200

> 1 500 +25

0

The values specified do not apply to the uncropped ends for a total length “~ of a mill edge coil,

Total length “~ would be calculated using the formula:

Total length “~ in metres =90

Thickness in millimetres

Prowded that the result was not greater than 20 m, inclusive of both ends.

2

Illllil .-~— ——— ... -. — ....— —— ..--. . -,-- . .

1S/1S0 16160:2005

Table 4 — Width tolerances for coils and cut lengths (including descaled material),sheared edge, not resquared


I .%ecified width I Tolerance

+3< 1 200 0

~1200 <1500 +5

o

+6> 1 500 0

I NOTE For resquared material, more restrictive tolerances are subject to negotiation

Table 5 — Length tolerances for cut lengths (including descaled material), not resquared

Dimensions and tolerances In mlllimetres

Specified length Tolerance

<2000+10

o

>2000 <8000 + 0,5 % Y length

o

+ 40>8000 0

NOTE For resauared material, more restrictive tolerances are subiect to necrotiatlon.

Table 6 — Camber tolerances for coils and cut lengths (including descaled material), not resquared


Form Camber tolerance

Coils 25 in any 5000 length

Cut lengths 0,5 Y. length

NOTE For resquared material, more restrictive tolerances are subject to negotiation. The values specified do not apply to the

uncropped ends of a mill edge coil far a tatal length of 7 metres Camber is the greatest deviation af a side edge from a straight line, the

measurement being taken on the concave side with a straight edge as shown in Figure 1.

Table 7 — Out-of-square tolerance for cut lengths (including descaled material), not resquared

Dimensions Out-of-square tolerance

All thicknesses and all sizes 1 VO x width

NOTE Out-of-square is the greatest deviation of an edge from a straight line, at right angles to a side and touching one comer,

the measurement being taken as shown in Figure 2. It can also be measured as one-half the difference between the diagonals of the MIenath sheet.

3

1S/1S0 16160:2005

Table 8 — Out-of-square tolerance for resquared material (including descaled material)


Specified Specified Out-of-square tolerancelength width <6 mm thickness

I <3000 I < 1 200 I +2

o

I I I+3

>1 200 0

I >3000I

All widths I +3

o\ 1 1

NOTE Out-of-square is the greatest deviation of an edge from a straight line at right angles to a side and touching one corner, themeasurement being taken as shown in Figure 2, It can also be measured as one-half the difference between the diagonals of the cut

length sheet. When measuring material to resquared tolerances, consideration may have to be given to extreme variations intemperature.

Table 9 — Standard flatness tolerances for cut lengths (including descaled material)


Flatness tolerance

Specified thickness Specified width Specified strength level of R,

<220 N/mmz 220 to 320 N/mmz >320 N/mmz

< 1 200 21 26 32

<2 >1200 <1500 25 31 38

> 1 500 30 38 45

< 1 200 18 22 27

> 2 >1200 <1500 23 29 34

>1 500 28 35 42

NOTE Maximum deviation from a flat horizontal surface: with the sheet lying under its own weight on a flat surface, the maximun

distance between the lower surface of the sheet and the flat horizontal surface is the maximum deviation from flatness as shown ifFigure 3 This table also applies to sheet cut to length from coil by the customer when agreed-upon flattening procedures are performed

4

1S/1S0 16160:2005

1 2 3

I I

Key

1 edge GaMbW

2 side edge (concave side)

3 straight edge

Figure 1 — Measurement of camber

,2

Key

1 out-of-square

2 straight edge

3 side edge

Figure 2 — Measurement of out-of-square

Key

1 maximum deviation from flatness

Figure 3 — Measurement of flatness

5

Bureau of Indian Standards

BIS IS a statutory institution established under the Bureau of /ndian Sfancfards Act, 1986 to promote

harmomous development of the activities of standardization, marking and quality certification of goods

and attending to connected matters in the country.

Copyright

BIS Ihas the copyright of all its publications. No part of these publications may be reproduced in any

form without the prior permission in writing of BIS, This does not preclude the free use, in course ofImplementing the standard, of necessary details, such as symbols and sizes, type or gradedesignations. Enquiries relating to copyright be addressed to the Director (Publications), 61S.

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards arealso reviewed periodically; a standard along with amendments is reaffirmed when such reviewIndicates that no changes are needed; if the review indicates that changes are needed, it is taken upfor revision. Users of Indian Standards should ascertain that they are in possession of the latestamendments or edition by referring to the latest issue of ‘BIS Catalogue’ and ‘Standards: MonthlyAdditions’,

This Indian Standard has been developed from Dot: No. MTD 4 (4693).

Amendments Issued Since Publication

Amendment No. Date of Issue Text Affected

BUREAU OF INDIAN STANDARDSHeadquarters:

Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002Telephones: 23230131, 23233375, 23239402 Website www.bis,org.in

Regional Offices: Telephones

Central : Manak Bhavan, 9 Bahadur Shah Zafar Marg{

23237617NEW DELHI 110002 23233841

Eastern : 1/14, C.I.T. Scheme WI M, V.I.P. Road, Kankurgachi

{

23378499, 23378561KOLKATA 700054 23378626, 23379120

Northern : SCO 335-336, Sector 34-A, CHANDIGARH 160022

{26038432609285

Southern : C.I.T. Campus, IV Cross Road, CHENNAI 600113

{22541216, 2254144222542519, 22542315

Western : Manakalaya, E9 MlDC, Marol, Andheri (East){

28329295,28327858MUMBAI 400093 28327891, 28327892

Branches: AHMEDABAD. BANGALORE. BHOPAL, BHUBANESHWAR. COIMBATORE. FARIDABAD.GHAZIABAD. GUWAHATI. HYDERABAD. JAIPUR. KANPUR. LUCKNOW. NAGPUR.PARWANOO. PATNA. PUNE. RAJKOT. THIRUVANANTHAPURAM. VISAKHAPATNAM,

Printed at Power Printers, New Delhi

is.iso.16160.2005

Documents