277 1992

IS 277- 1992

1. 18 27751992

arca (Reatiemes 997)

SS (AT gar area ) —
fafırfez
(iwal gr )
Indian Standard

GALVANIZED STEEL SHEETS (PLAIN AND
CORRUGATED ) — SPECIFICATION

( Fifth Revision }

UDC 60-1441 : 66-86

@ BIS 1m
BUREAU OF INDIAN STANDARDS

MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
‘NEW DELL 10002

December 1992 Price Groep 3

2. ‘Wrought Stel Products Sectional Committee, MTD 4

FOREWORD

“This Indian Standard ( Fith Revision) was adopted by the Bureau of Indian Standards, after the
‘rah Gnalied by the: Wrought Stet Product Sectional Committe Pad been approved dy the
Metallurgica! Enginesrin Division Counel

This standard wa st published in 195) and subsequently revised in 196,196, 1977 and 1985.
Ti ini reson steclshcets of lower thickness from 0:19 mm onvarde and higher with of 1200
‘Behave Ben incas. Inthe cave of Sorted sheets, sel seca with E cogaion have

Galvanized see sheets covered by this standard are intended 1o be wed fr general purposes,
SEEN me panclling snd racines ‘Stet shecs conforming 10 this standard are net intended te be
red for other special applications.

or, comience i ordering garni te sect he pen sets ou be order ine
bass of thelr eng, width and thicknescess” Sheets in cll form soul be orders on the ans
‘oF thor Imermal ligne, wth, thickness and nase” Whereat the covrogated sheets may De
Srdered on the bass of thi engi, hicimos and depih and number el organ

For the purpose of deciding whether a particular requirement of ths standard is complied with,
the final Value, observed or ealelated, espro the result OÙ à test or analyst shall be
Funded ofl in Secordance with 182: 1960 Res for rounding america valet (revised
The number of signiteant places retained in the rounded off valve

the speed vain hie anand

‘ould be the same as that OF

3. 18277 1992

Indian Standard

GALVANIZED STEEL

SHEETS (PLAIN AND

CORRUGATED ) — SPECIFICATION
( Fifih Revision }

1 score

This standard covers the requirements of plain
fnlvanizedsiel sets and coils and corapated
‘Bivanized sheets.

2 REFERENCES

‘he following Indian Standards are necessn
jane to th stands id

15.0 Tite

EI] Speciation for sine (shied
ie carbon stet sheets and.
Sp {iid reo y
Spscifetion for hotlled
hrbon sed sheets und step
Court rion

Glossary of terms relating 19
‘fon and ree! Part 4 Stes
Sheet and sp (fra res
Recoramended practice for
for ip gaeanidng on ion
nd stot Cr reson)
Methods for determination of
Seht of sine coating on ne
Toafed hon and nen aces
General technical delivery
Sel products

HET

Bm]

3 TERMINOLOGY
34 For the purpot ofthis standard, the defi

1956 (Part 4) 118 and the
ng shal pp

32 Black Sheet Hot role steel sheet prior
Fo piling operation.

33 Cold Rolled. Sheet or Call Cold roled
hector col prior 6. Coninacos galvanizing
prose

34 TWekaes of Sheet — Thickness of hot
pha rot ht sec i eat Teg col

4 SUPPLY OF MATERE

The general requirements relating tothe supply
of galvanized sheets and spe sal fic
iS So tore.

5 MANUFACTURE

5,1 The base metal back sheets, cold rolled
Sheets or sois) for pain galvanised sheets and
foils aba confor fo rade O and fr lock
forming quality shall conform to grade D of
BOB Sats I PE a sae may
mim phosphorus coment may be 009 percent.

52 Galvanizing all be carie out by Ant
ing the back sheets oe by cleaning the cold
Foiled cols in ite aná then Sipping tem in à
Batman snc at a tempo ile
a coating (see 18 2639 1985). The zine
‘ingot ‘wed! for gaeaniing shal conform at
leds to grade Zad8 of 18 20921979.

6 CLASSIFICATION

Galvanized plain coils and sheets as well as
Scrragted Shets ae lada per Table À
‘thie alo shows the grade of ra material
Sen required forthe manufoctre

Table 1 Classico of Grates of
Gt Cals and Sct

(Claus 601492)

OS
w a Ô

Eee ery

4. is a7: 1992

7 ZINC COATING

A The zine coating shal conform to he equi
Temen of any one of the grades prend I
‘fabled the mass of costing flared o In
A ner aa cpretent the Cua mas of

72 aay er us of coating, das tae
{Between he purchaser and the magafacure,

73 The following ace recommended grades of
Fine coating forthe various ticknes Sf shee

Grade of
PECAR

Thickness

01810028 (both inclusive)
130 40055 (both inclusive)
06310 10 (both inclusive)
above 100 mm

8 BEND TEST

Sa Test Samples
Bend tet for the purpose of conformity shall

ed out af the tate of one tet of 2

Simpler for every 1000 plais sheet e part
Hero “Towerer, Bend test shall not be
ried out on sheets intended for corruption

Table 2, Masso G
"tonal Hoth Sites)

(Clowes 1,72 00d 92)

Et

BLA One bend eut shall be conducted for

8.1.2 For bend en, the. test piece ball be 230
‘im long and 75 mo to 100 nm wide cut aero
the dreetion of rong

813 Specimens for bend tests shall be free
fiom burrs Filing vor machling to remove
bre permitted. Cracks of the base metal
veining ah he Sige of the weinen or
oars grata developing tthe line of the Bend
Shall be disregarded. =

Samples of galvanized sc sheets selected as
seb 181 shal island beading through
160° around a mandee having diameter speci
Coating Gack or aire of bate metal,
‘xcept thor insicated In BAS, sball noe BS

3 COATING TEST
DA Test Samples

One set of thes samples ach 0 mnt or SO mm
Shee fr every 1000 galanes sheets or part,
erot. inthe eave of the galvanized sheets
produced from Black sheet, One et of thes
Zamples shall be taken, two. from cach er
¡sema ofa diagonal and one fom the middle
tthe sheet, wheat in the ease of galvanized
Meet produced from cold-rolled. coll, one set
‘tte samples shal be taken rom the middle
St the width of the sheet and one from each
de of the sheet. The sample om extreme,
logon or from the side of the shest shall not
he eier tbn 75 mim from Ihe edge of the

94 ln cave of gaivanized sheet supplied in
Coli, one set of Samples. cack Som or 20
tm ameter sal be slid fom ne end ot
9. Determination of Nas of Zine Coming

The average mases of roc coating of samples
de scie under DA and determined by the
dicos given In 16 6748" 1979 shal ooferm to
oh the value species in Tab

10 RETESTS

Rene ‘irene 93 and 92, two. moe
{eat samples shall De taken forthe specie est
equremants fom the same ot

5. ‘Table 3 Mandrel Diameters for Bend Test

{Clause

82)

5
>

y ro

102 If any of the rete sample al to meet
he requfenens ot this specication, de
mire atch of the shets represented. By the
Sample shall be deemed as not conforming 16
nadar

11 FREEDOM FROM DEFECTS

11. Galvanized plan sheet, corrogated sheets
And cil shal be eatonably fat and ree om
Aare apois, Roles, tears aod other aul
FES

112 Coil however, may contain some abnor
mit imperfections which render 4 portion af
FE col uneable since the Imperfesfons the
ES Cannot be removed st in te se Wh cut
12 mass

JA Mase of sheets and coile shall be given in
a mass

122 The mass of sheets and coll wall be
Sica as given in Table. on the bases of
amina die one and mass Of rine cone.

13 DIMENSIONS AND TOLERANCES OF
PLAIN SHEETS COILS
1 Ses of Plan Sheet

The plain sheet shall
molestos ef the fa
and thickness

be supplied. in any
homing Tengo, widths

1 $00, 2200, 250,2 0

à) Length
and 3060 min

D Width 780, 90,

1260 mm
— $18, 022,05, 028, 032,
PEE

10m ant
CS os
and 1-60 mm

sate Daas atts sn
LLL Tog of bea ple ico, he
Tita di a tu SA ai
Simm ems ot exch Cl tho

HALA Cola weitere than 12 tos
cn the contacting pares
132 Toterancee

1321 Length

No sheet aba be smaller in fength Chan that
pelted, Tolerance along om pls sde shall
HS mun or 03 percent of Length whichever

1322 The disgona distance between opposite
former of any sheet shall not die by mote
Dr

1323 mh
No plain sheet shal be smaller o width than

that pee "Te positive tolerances om
with Sal be 10 mn.

6. 18271992

Table A Calelation af Mas of Sheets or Coils

(Clawe 122)

o o

alma Tortas of

(x) age 2

ATEN

13:24 Tienes
The tolerance on thickness of sheet and col

‘all be acenrcing 1018 1079 5 (988 0716513
1986 as applicable

132.5 Tolrenee on Mass

“The tclerance on mass of individual sheets al
{aged in accordance wi 122 shall be wath

SIO percent and toieranee on mast ofeach
Bina of sheet shal be ES percent.

14 DIMENSIONS AND TOLERANCES OF

CORRUGATED SHEETS

16: Sins of Coneagted Sheets

ML Lene

The length ofthe corrugated sheets shall be as
1 $00, 2200, 2500, 2800, 3000 and
36% mm

141.2 Depth and Pitch ofthe Corupaions

The depth and pitch of contugation shal be as

Follows Core SN

Grade Dept # Puch of
dotación Corman

A irs 75

3 Rs =
14.43 Number of Comugatione
The number of coregations shall be 8 10, 11

and 13 depending on the width of the sheet
The overall width ofthe” sorrogated sheet
Before and afer corugation Shall be as shown
ERAS

L414 Sheets of sizes other han those spec
AS

Table S Overall Widths and Corroatons

7. Fos 1 Darm an Pr or Connucanons

142. The tolerances on dimensions of correas
Hier shal bear pen in Table 6

15 MARKING

15. Manufacturer's name or trademark grade
Sonny lengths wiih, thickness and number
conan, grade in cae of corropsted
‘Sheets and material” Mentieation (rade,

‘quality, ic) wall egbly be marked on top of
SEC hector shown on à fap atacked to Cah
Bande,

152 Standard Marking

The material may alo be marked with Standard

Table 6 Tolerance on Dimension of
Cormentea Siete

(Clowe 142.1)

ry a

8. Standard Mark

“The se of the Standard Mark governed by the provisions of the Bureau of Ind
Standards Act, 1946 nd the Roles and Requntions made thereander. The Standard Mark
tn products covered by an Indian Standard. conveyr the assurance hat they have Been
produced to compiy withthe requirements of hat standard under a well dehned system
Brenn, eon and qui contd when det and seri y BS 20d
‘perated bythe producer. Standard marked produce are ako ontiovounly checked by
BIS for conformo to that standard ara further safepuarS, Detail of conditions under
cl scence fr the wi of the Standard Mark may be granted 10 manuaelurers oF
Producer may be obtained from the Boreas of Indian Standards.

9. Brenn of Indian Standards

BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986
Promote damonigus development of the activites of standardisation, marking and qual
Renca of goods and atendig to connected matters inte sour.

Coprrig
BIS has (he copyright of all is publications. No part of ¿bes publications may be reproduced
In any form witout he or permiiton wea of BIS. This docs not preciado the re ase,
ine cur arme te sda, cry dc. ac yl de pe
AS

Revision of indian Standards
Indian Standards are reviewed peridicaiy and revised, when necesary and amendments, if
Any. ace ited fiom une to time User indian Standards should arceriin that they ar in

Pollen of the sent amendarene or citi, Comments on ths Indian Standard tay Be
Sent to BIS giving the following reference

Docs Noy MTD 4 (3797)

Amendent Lcd Since Publication

‘Amend No, Date of fe Text Affects

Marak Bhavan, 9 Bahadur Shab Zafar Marg, New Delhi 110002
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LUCKNOW. PATNA: THIRUVANANTAAPURAN

10. AMENDMENT NO. 1 OCTOBER 1993
TO

£1992 GALVANIZED STEEL SHEETS ( PLAIN

AND CORRUGATED} ~~ SPECIFICATION

(th Revision)

‘ince 23)

Bano ain to Ta Se

Gp Ue Gs Oe y

11. AMENDMENT NO. 2. DECEMBER 1993
10
15277: 1992 GALVANIZED STEEL SHEETS (PLAIN AND
‘CORRUGATED )— SPECIFICATION

(Fink Reson)

(Foreword ir para) Su te following forthe exit y

ec Bet covery hs sana are ente ob wed foe

ma

12. AMENDMENT NO. 3 DECEMBER 1998
TO
IS 277: 1992 GALVANIZED STEEL SHEETS (PLAIN
AND CORRUGATED) — SPECIFICATION

(Fifth Revision)
(Page 1, clause 2) — Substitute the following for te existing clause:
2 REFERENCES
‘The following Indian Standards are necessary adjunci to this standard:
I No. Tite

513: 1994 Cold-rolled low carbon steel sheets and strips ( fourth
revision’)

1079 : 1994 Hotrolled carbon steel sheet and strip (Jh revision)

1956 Glossary of terms relating to iron and steel: Part 4 Steel
(Part 4): 1976 sheet and stip (first revision )

2629 : 1985 Recommended practice for bot dip galvanizing on iron
and steel (frst revision)

6745 : 1972 Methods for determination of mass of zinc coating on zinc

coated iron and steel articles

8910: 1978 General technical delivery requirements for steel and stech
products

13229: 1991 Zine for galvanizing
(Page 1, clause 5.1 ) — Substitute the following for the existing:

5.1 The base metal of plain glavanized sheets and coils shall confomm to grade O
and for lock forming quality it shall conform to grade D of IS 1079 : 1994 or
18 513 : 1994 as the case may be. The test for base metal shall be verified on
samples of galvanized sheet or strip after stripping off the zine coating. For
corrugated sheets, the maximum phosphorous content ay be 0.09 percent

(Page 1, clause 5.2 ) — Substitute the following for the last line of the para:
ingots used for galvanizing shall conform to grade Zn 98.50 of IS 13229 :

1

13. Amend No. Sto 15 277: 1992

(Page, lose €) — Subst ie flieg forte existo lame:
6 CLASSIFICATION

‘nc ol béni ll act nn col nc as rapid rc
sie a per Tale

(Page, Tble column heading, ie 2) — Staite atte Mel for

14. AMENDMENT NO. 4 MARCH 2002
TO
IS 277:1992 GALVANIZED STEEL SHEETS ( PLAIN
AND CORRUGATED ) — SPECIFICATION
( Fifth Revision )
[ Page 1, clause 5.2 ( see also Amendment No. 3 ) | — Substitute the
following for the last line of the para:

“Zinc ingots used for galvanizing shall conform to any of the grades specified in
IS 209 : 1992 or IS 13229 : 1991”.

Reprography Unit, BIS, New Delhi, India

15. AMENDMENT NO. 5 NOVEMBER 2002
TO

IS 277:1992 GALVANIZED STEEL SHEETS ( PLAIN AND
CORRUGATED ) — SPECIFICATION

(Fifth Revision)
{ Foreword ) — Insert the following before last para:

“For all the tests specified in this standard (chemical/physical/others), the method
as specified in relevant ISO standard may also be followed as an alternate
method."

(MTD 4)
yy Unit, BIS, New Delhi, Indiä