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 16162 (2005): Continuously cold-rolled steel sheetproducts - Dimensional and shape tolerances [MTD 4: WroughtSteel Products]

I

l!!!ii

}I.

1S/1S0 16162:2005

W’?dt?m

Frmr Wm”a’f%m ‘= * ?ftz Q-m-l-G — WI141 ~e\a-m-l?sg@

Indian Standard

CONTINUOUSLY COLD-ROLLED STEEL SHEETPRODUCTS — DIMENSIONAL AND SHAPE

TOLERANCES

Ics 77.14050

@ BIS 2007

BUREAU OF INDIAN STANDARDSMANAK f3HAVAN, 9 BAHADUR SHAH ZAFAR NTARG

NEW DELHI 110002

0ctober2007 Price Group 3

Wrought Steel Products Sectional Committee, MTD 4

NATIONAL FOREWORD

This Indian Standard which is identical with ISO 16162:2005 ‘Continuously cold-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 16162:2005 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 (reviseu)’.

1S/1S0 16162:2005

Indian Standard

CONTINUOUSLY COLD-ROLLED STEEL SHEETPRODUCTS — DIMENSIONAL AND SHAPE

TOLERANCES

1 Scope

This Internationalsheet products.

Standard applies to dimensional and shape tolerances for all continuously cold-rolled steel

Note Cold-rolled steel strip is not covered by this International Standard.

2 Dimensional tolerances

Dimensional tolerances are given in Tables 1 to 9.

Table 1 — Normal thickness tolerances for coils and cut lengths

Dimensions and tolerances in millimetres

I Specified I Thickness tolerances a, owidth for specified thicknesses c

<0,4 >0,4 <0,6 >0,6 <0,8 >0,8 <1,0 >1,0 <1,2 >1,2 <1,8 >1,8 <2,0 >2,0 <2,5 >2,5 <3,0 >3,0 G 4,0

600<1200 * 0,04 * 0,05 * 0,07 + 0,08 t 0,09 *orll *0,13 +0,15 +0,18 t 0,20

>1 200t 0,05 + 0,06 t 0,08 i 0,09 *0,10 +0,12 + 0,14 + 0,16 *0,19 i 0,21

< 1 500

> 1 500k 0,08 i 0,09 +0,10 + 0,12 +0,14

< 1 800 —k 0,16 * 0,18 * 0,21 t 0,23

a The thicknesstolerancesfor sheet in coil form are the same as for sheet suppliedin cut lengthsbut, in cases where welds are present, the tolerancesshallbe doublethose given over a lengthof 15 m in the vicinityof the weld.b For specifiedstrengthlevels of Ra = 360 N/mmz and greater, increase the thicknesstolerances by 10 “h,applyingnormal rounding-offprocedures.c Thicknessis measured at any pointon the sheet not less than 25 mm from a side edge.

1

1S/1S0 16162:2005

Table 2 — Restricted thickness tolerances for coils and cut lengths

Dimensions and tolerances in millimetres

I Specifted I Thickness tolerances a bwidth for specified thicknesses c

<0,4 >0,4 G 0,6 >0,6 <0,8 >0,8 <1,0 >1,0 <1,2 >1,2 <1,6 >1,6 <2,0 >2,0 G 2,5 >2,5 <3,0 >3,0< 4,C

600<1200 * 0,025 * 0,035 t 0,04 * 0,045 * 0,055 * 0,07 * 0,08 +0,10 *0,11 +0,12

>1 200t 0,035 * 0,045 * 0,05 + 0,06 * 0,07 ~ 0,08 * 0,09

< 1 500+0,11 * 0,12 * 0,13

> 1 500< 1 800 “

i 0,05 * 0,05 * 0,06 * 0,07 * 0,08 i 0,09 *o)ll *0,12 io,13

a The thicknesstolerancesfor sheet in coil form are the same as for sheet suppliedin cqt lengthabut, in cases where welds are presant, the tolerance:shall be doublethosegiven over a lengthof 15 m in the vicinityof the weld.b For specifiedstrengthlevels of Re = 360 N/mm2 and graater, increase the thicknesstolerancesby 10%, applfing normal rounding-offprocedural,c Thicknessis measured at any pointon tha shaet not Iesa than 25 mm froma side edge.

2

Table 3 — Width tolerances for coils and cut lengths, not resquared

Dimensions and tolerances in millimetres

Specified width Tolerance

<1 200+3

o

>1200 <1500+5

o

+6> 1 500 0

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

Table 4 — Length tolerances for cut lengths, not resquared

Dimensions and tolerances in miffimetres

Specified width Tolerance

+10<2000 0

>2000 <8000 + 0,5%x lengtho

+ 40>8000 CY

r 3NOTE For resquared material, more restrictive tolerances are subject to negotiation.

1

1S/1S0 16162:2005

Table 5 — Camber tolerances for coils and cut lengths, not resquared

Dimensions and tolerances in millimetres

Form Camber tolerance

Coils 20 in any 5000 length

I Cut lengths I 0;4 Y. x length INOTE Camber is the greatest deviation of a side edge from a straight line, the measurement being taken on the concave sidewith a straight edge as shown in Figure 1. For resquared material, more restrictive tolerances are subject to negotiation.

Table 6 — Out-of-square tolerance for cut lengths, not resquared

Dimensions Out-of-square tolerance

All thicknesses and all sizes 1 Y. x width

NOTE Out-of-squareis the greatest deviation of an end edge from a straight tine at right angles to a side and touching one corneras shown in Figure 2. It can also be measured as one-half the difference between the diagonals of the Cut length sheet.

Table 7 — Out-of-square tolerances for resquared material

Dimensions and tolerances in millimetres

Specified length Specified width Out-of-square tolerance

<1 200+2

o<3000

+3>1 200 0

>3000 All widths+3

o

NOTE Out-of-square is the greatest deviation of an end edge from a straight line at right angles to a side and touching one come!as shown in Figure 2. It can also be measured as one-half the difference between the diagonals of the cut length sheet, Whenmeasuring material to resquared tolerances, consideration may have to be given to extreme variations in temperature.

3

WISO 16162:2005

Table 8 — Standard flatness tolerances for cut lengths

II

Dimensions and tolerances in millimetres

Specified thickness Specified widthFlatness tolerance a,b

Specified strength level of R,

<220 N/mmz 220 to 340 N/mm2 >340 N/mm2

< 1 200 15 23 29

<0,7 >1200 <1500 18 27 34

> 1 500 22 33 41

< 1 200 12 18 23

>0,7 <1,2 >1200 <1500 15 23 29

> 1 500 19 29 38

< 1 200 10 15 19

>1,2 >1200 <1500 12 18 23

> 1 500 17 26 33

40TE This table does not armlv to full hard sheet (CH550). I

This table also applies to sheet cut to length from coils by the customer when agreed-upon flattening procedures are performed.

, Maximum deviation from a flat horizontal surface: with the sheet lying under its own weight on a flat surface, the maximum distanca)etween the lower surfaca of the shaet and the flat horizontal surface is the maximum deviation from flatnass as shown in Figure 3.

Table 9 — Restricted flatness tolerances for cut lengthswith specified strength level of Re <220 N/mm2

Dimensions and tolerances in millimetres

Specified thickness Specified width Flatness tolerance a, bI

< 1 200 6

< 0,7 >1200 <1500 7

> 1 500 8

< 1 200 5

>0,7 <1,2 >1200 <1500 6

> 1 500 7

< 1 200 4

>1,2 >1200 <1500 5

>1 500 6

3 This table also applies to sheet cut to length from coils by tha customer when agreed-upon flattening procedures are performed.

> Max[mum deviation from a flat horizontal surface: with the sheet lying under its own weight on a tfat surface, the maximum distanc~)etween the lower surface of the sheet and the flat horizontal surface is the maximum deviation from flatness as shown in Figure 3.

4

1S/1S0 16162:2005

2“+ I /3

Key

1 edge camber

2 !21de edge (concave side)

3 straight edge

Figure 1 — Measurement of camber

‘7L

i I.

t

3

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

I

Bureau of Indian Standards

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

Copyright

61S has the copyright of all its publications. No part of these publications may be reproduced in anyform 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 (4694).

Amendments Issued Since Publication

Amendment No. Date of Issue Text Affected

BUREAU OF INDIAN STANDARDSHeadquarters:

Manak Bhavan, 9 Bahadu~Shah Zafar Marg, New Delhi 110002Telephones 23230131,23233375,2323 9402 Website www.bis.org.in

Regional OffICeS: Telephones

Central : Manak Bhavanj 9 Bahadur Shah Zafar Marg

{23237617

NEW DELHI 110002 23233841

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

{

23378499,23378561KOLKATA 700054 23378626,23379120

Northern : SCO 335-336, Sector 34-A, CHANDIGARH 160022 f 2603843

Southern :

Western :

\ 2609285

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

{22541216,2254144222542519,22542315

Manakalaya, E9 MlDC, Marol, Andheri (East) J 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 Dell)i