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IS : 4843 - lita

Indian StandardCODE FOR DESIGNATION OF

FERROUS CASTINGS

Metal Standards Sectional Committee, SMDC 1

Chairman RepresentingSHRI R.G. BHATAWADEKAR The Binani Metal Works Ltd, Calcutta

Members

Da U. ?i. BHRAX~SRRI K. H. SHARXA ( Altcmete )

The Indian Iron & Steel Co Ltd, Burnpur

SHRI B. N. DAS National Metallurgical Laboratory (CSIR ),

Dn B1 R. DEORIS Hn&%? z; Ltd Ranchi,SHRI K. C. SOM ( Alternate jDIRECTOR ( M & C ) RDSO, Ministry of Railways

LTXKNOW

PHonric-Tros ENOINEEREASTERN RAILWAY, J.k-nshLrCn ( rfltcrnelc I j

ASSI~TAXT DIRECTOR( M. S. ), RDSO, LTCKNO~( AlUrnate II )

SHRI N. KRISHNASWAT+~I Direc;~tot~l~,eneral of Technical Development,j

SHRI D. P. LAHIRI Defence Metallurgical Research Laboratory, MinistrySHRI A. KAILAEA~~ Alternate )

of Defencc ( R & D )

SHRI S. K. LAHIRI Directorate General of Supplies & Disposals ( Inspec-tion Wing Ministry of Works, Housing &

SHRI P. G. V.,Rao (Alternate jSUPPlY )

SHRI K. P. K. MENONSHRI AXIL MITRA

Ministry of Defcnce ( DGI )Indian Institute of Foundrymen, Calcutta

SHRI K. SRIXIVASAN ( Alternate )SKISI P. MITRASam S. N. M~~F.R.IEE

Indian Tune Co Ltd, JamshedpurNational Test House, Calcutta

SERI B. K. MV~~TRY Indian Aluminium Co Ltd, CalcuttaSARI Tz. GOPALKRISHSAN ( Alternate )DR S. R. PRAXANIIZSHRI K. iX;. P. RAO

Ministry of Steel, Mines & Metals

Snnr K.P.RoY CKOWDFKTRYThe Tata Iron & Steel Co Ltd, JamshedpurIndian Non-Ferrous Metals Manufacturers Associa-

Snnr R. K. SRIVASTAVA,tion, Calcutta

Deputy Director ( Strut L Met jDirector General, IS1 ( Ex-o o Member j

SuretarySHRI SAXT SIXGH

Senior Technical Assistant ( Strut Br Met ), IS1( Continued on page 2 )

INDIAN STANDARDS INSTITUTIONMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARC

NEW DELHI 110002

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Conmm- Reprcsenring

DE~~CTY DIRECTOR ( him-2) Ministry of RailwaysRDSO, WfTARAN.TA~

Burn Co Lid, HowrahThe Britannia Engineering Co Ltd, TitaghurIndian Iron Steel Ltd, KultiHindustan Motors Ltd, District Hooghly

ISi4843-1968

Panel for Code for Designation of Ferrous Castings, SMDC 1 : P11

hhbm

SHRI S. K. DAYREPREBENTATIVEREPRESENTATIVESarrr N. K. Snvar.~

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hdian StandardCODE FOR DESIGNATION

FERROUS CASTINGS

IS i 4343 - 1968

OF

0. FOREWORD

0.1 This Indian Standard was adopted by the Indian Standards Institution

on 8 October 1968, after the draft finalized by the Metal StandardsSectional Committee had been approved by the Structural and MetalsDivision Council.

0.2 A code for designation of ferrous castings will be an important steptowards identification, uniform marking of products and drawings. Sucha standard designation would greatly help the manufacturers and the usersof the products concerned.

0.3 This standard has been co-ordinated with the following codes fordesignation, so that certain measure of uniformity is achieved in thedesignations:

*IS : 1762-196 1 Code for designation of steel

+1S : 2084- 1962 Code for designation of pig iron

IS : 2085-1962 Code for designation of ferro-alloys

1. SCOPE

1.1 This standard lays down the principles for code designation of ferrouscastings.

2. GENERAL

2.1 Ferrous castings shall be designated by a group of symbols indicatingthe important characteristics in the followmg order:

a) Type of castings, and

b) Mechanical properties or chemical composition.

*Since revised. 3-- 3

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3 SYMBOLS FOR TYPE OF CASTINt3S

3 1 Various castings shall have code.d gnations as given below:

4W

Cld)e>f1g>h)

3

9

Ferrous Castings

Grey iron

Mdtabk i ronc

1) Black-heart

2) Pearlitic

3) White-heart

Spheroidal or nodular graphite iron

Austenitic flake graphite iron

Austenitic spheroidal or nodular graphite iron

Abrasion resistant iron

Steel castings

I-Ieat-resistant steel castings

Corrosion-resistant steel castings

Lhignation

FG

BM

PM

WM

SG

AFG

ASG

AaR

CS

CSH

CSC

4. SYMBOL FOR MECHANICAL PROPERTIES

4.1 The tensile strength in kgf/mms to follow the group symbol shall be theminimum for the 30 m section in case of grey iron castings and theminimum for the heaviest section in casr of various other castings. Wherethe minimum tensile strength requiremerlt does not vary with the sectionalthickness within the same grade, the roup symbol shall be followed by theminimum tensile strength indicated for the grade. In the case ofspheroidal or nodular graphite iron castings, the tensile strength shall befollowed by the minimum elongation on gauge length 5*651/ j.

5. SYMBOL FOR CHEMICAL COMPOSITION

5.1 In the case of grey iron castings where chemical composition is more

11 important than the tensile properties and for alloy iron and alloy steel

;castings, the group symbol shall be followed by the chemical symbol inaccordance with IS : 1762-1961*.

*Code for designation of ~tccl. _( Since revised ) .

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6. EXAMPLES

ISr4w3-1968

6.1 In order to illustrate, examples of code designations in accordancewith this standard are given below:

a) Grey Iron Castings

1 General Engine& g Castings

SECTIONAL THICKNESS Dxy..;o?.s~ TENSILEOF CASTINGS STRENGTH

mm mm kgf@mMire

DESIGNATION

4upto 8 13 19Over8upto15 20 17

Over 15upto30 z 15Over 30 to 50p 13

15 up to ,30over 30 up to 50

3045

4037

1

FG 15

FG40.

2) S ccial Grq I ron Castings Where Chemical Comfio ion L M oreI mportant, Such as I ngot M ould Castings

CHEMICAL COMPOS~ION DEG~T;NATKON*c --

Element Percent

Carbon equivalent 4.0 to 5-l 7

Tdt: 2::: $1: ) 3.5 ISilicon l-20 to 1.80 1Manganese O-60 to o-90 ) FG35Si 15Chromium, Max o-15 , :Copper, MUX 0.10

Sulphur, Max o-080Phosphorus, Max o-400 Jb) Malleable Iron Castings

1 Bl uck-H eart M alleable I ron Castings

SECTIONAL THICIC- DIAMETEROF TEST TENSILE DESIGNATIONNESS OF CASTINGS BARASCAST STRENGTH

mm mm kgf:mm*Min

All sizes:: :;

BM 35All sizes BM 32All sizes 15 30 .- BM 30

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IS:484301968

2) Pearl i t i c M al Lsab2e I ron Cast i ngs

SECTIONAL THICKNESS DIAMETER F TESTOF CASTINGS BAR AS CAST

mm mm

_ A 1 sizes 15

All sizes 15

All sizes 15

All sizes 15

All sizes 15_

3) W hit ++H eart M all eable I ron Cast i ngs

SECTIONAL HICKNESS DIAMETEROF TEST_ O.F 9I-IIVGS BAR AS C&T

mm mm

8 and underOver8up@ 13Over 13

8 and underOver8upto 13Over 13

c) Spheroida or

I&s;L~ &&.NGTHkgf/mma

M i n

80

70

60

50

42

38

1;15

9 *1215

TENSILESTRENGTHkgfjmm*

M i n

DESIGNATION

70 PM 70

65 PM 65

55 PM 55

50 PM 50

45 PM 45

TENSILESTRENGTH

, kgt;imm*iMi72

DESIGNATION

36 l

40 F42J283235

WM 42

WM 35

Nodular Graphite Iron Castings

ELONGATION, ERCENT

M i n

on Gauge Length 10 = 5d

2

2

2

7

12

17

6

DESIGNATION

SG 8012

SG 7012

SG 6012

SG 50/7

SG 42/12

SO 38/17

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IS:4843-1968

d) Austenitic Flake Graphite iron Castings

th3UZCAL thWMZION DESIGNATION~_--_-~--_-----L~

Elemrnt Pt iZYlt

Carbon, MUX 3.00Silicon 1.00 to 2.80 :Manganese 190 to 1.50Nickel 13.5 to 17.5 I AFG Ni 16 Cu 7 Cr 2

Ccwer 5-50 to 7.50Chromium 130 to 2.50 1

J

e Austenitic Spheroidal or Nodular Graphite Iron Castings

CHEMICAL aPOSITION DESIGNATION--- L \

Ekmcnt Percent

carbon, MUX 390ilicon 190 to 2.80 1ManganeseNickelChromiumPhosphorus, Max

.

O-70 to l-5018-O to 22-O ASG Ni 20 Cr 2

1.00 to 2.500.080

f) Ala-don-lt~istaatxrollcartinga

CHEMK4L(hlPOSlTION DESIONATI~N

v

Ekmeni Percent Total carbonGraphite carbon, Max Ev6 Silicon @3 to 0.8

Manganese 0.3 to 0.8Nickel 3-3 to 5.0 i ABR33Ni4Cr2Chromium 1+ ~2-5Molybdenum, Max @75 ISulphur, Max 015Phosphorus, Max 090

EC> elc-wP

1

1 Unallopd (General Engineering) Steel Caslings

TENSILE TRENGTH DJSIGXUTIOXUkgf/mms

Min125105 zz:

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E css 85155 cs 5547 cs 4741 cs 41

2) Unal t oyed Speci al H i gh M agnet i c Permeabil i t y ) CastingsTENSILE TRENGTH DESIGNATION

kgf/mm835 to 44 CSM 3541 to 50 CSM 41

3) A l l oy St eel Cast i ngsCHEMICAL OMPOSMION

r --Element Percent

Carbon 0.45 to 0.551Silicon 0.10 to o-35 1Manganese 0.50 to 0.80 )Chromium 090 to l-20 1Vanadium, M i n 0.15 J

h) Heat-Resistant Steel Castings

CHEMICAL OMPOSITIONr --h--_------\

Element Percent

Carbon 1.20 to.1*40]Silicon, Max 290Manganese, M ax 1.00 IChromium 26.0 to 30.0 kNickel 4.0 to 7.0 /Sulphur, Max 0.050Phosphorus, Max 0.050 i

j) Corrosion-Resistant Steel Castings

CHEMICAL OMPOSITIONf Y-h-- -I

Element Percent

CarbonSilicon, MaxManganese, MaxNickel, MaxChromiumMolybdenum, Max

8

DESIGNATION

CS 50 Cr 1 V 20-

DESIGNATION

CSH 130Ni6Cr28

DESIGNATION

CSC 16 Cr 13

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