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 4843 (1968): Code for designation of ferrous castings[MTD 14: Foundry]

IS : 4843 - lita

Indian Standard CODE FOR DESIGNATION OF

FERROUS CASTINGS

Metal Standards Sectional Committee, SMDC 1

Chairman Representing

SHRI 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 H’n&%?!z; Ltd Ranchi 1 , SHRI K. C. SOM ( Alternate j

DIRECTOR ( M & C ) RDSO, Ministry of Railways LTXKNOW

PHonric-Tros ENOINEER EASTERN 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, Ministry

SHRI A. KAILAEA~~ ( Alternate ) of Defencc ( R & D )

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

SHRI P. G. V.,Rao (Alternate j SUPPlY )

SHRI K. P. K. MENON SHRI AXIL MITRA

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

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

Indian Tune Co Ltd, Jamshedpur National Test House, Calcutta

SERI B. K. MV~~TRY Indian Aluminium Co Ltd, Calcutta SARI Tz. GOPALKRISHSAN ( Alternate )

DR S. R. PRAXANIIZ SHRI K. iX;. P. RAO

Ministry of Steel, Mines & Metals

Snnr K.P.RoY CKOWDFKTRY The Tata Iron & Steel Co Ltd, Jamshedpur Indian Non-Ferrous Metals Manufacturers’ Associa-

Snnr R. K. SRIVASTAVA, tion, Calcutta

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

Suretary SHRI SAXT SIXGH

Senior Technical Assistant ( Strut Br Met ), IS1

( Continued on page 2 )

INDIAN STANDARDS INSTITUTION MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARC

NEW DELHI 110002

Conmm- Reprcsenring

DE~~CTY DIRECTOR ( him-2) Ministry of Railways RDSO, &Wf’TARAN.TA~

Burn & Co Lid, Howrah The Britannia Engineering Co Ltd, Titaghur Indian Iron & Steel Ltd, Kulti Hindustan Motors Ltd, District Hooghly

ISi4843-1968

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

hhbm

SHRI S. K. DAY REPREBENTATIVE REPRESENTATIVE Sarrr N. K. Snvar.~

2

hdian Standard CODE 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 Standards Sectional Committee had been approved by the Structural and Metals Division Council.

0.2 A code for designation of ferrous castings will be an important step towards identification, uniform marking of products and drawings. Such a standard designation would greatly help the manufacturers and the users of the products concerned.

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

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

+1 S : 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 ferrous castings.

2. GENERAL

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

a) Type of castings, and

b) Mechanical properties or chemical composition.

*Since revised. 3 -- 3

3. SYMBOLS FOR TYPE OF CASTINt3S

3.1 Various castings shall have code.d&gnations as given below:

4 W

, Cl d) e> f 1 g> h) 3

‘9

Ferrous Castings

Grey iron

Mdtabk iron c

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 the minimum for the 30&m section in case of grey iron castings and the minimum for the heaviest section in casr of various other castings. Where the minimum tensile strength requiremerlt does not vary with the sectional thickness within the same grade, the group symbol shall be followed by the minimum tensile strength indicated for the grade. In the case of spheroidal or nodular graphite iron castings, the tensile strength shall be followed 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 in accordance with IS : 1762-1961*.

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

4

6. EXAMPLES

ISr4w3-1968

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

a) Grey Iron Castings

1) General Engine&g Castings

SECTIONAL THICKNESS Dxy..;o?.s~ TENSILE OF CASTINGS STRENGTH

mm mm kgf@m’ Mire

DESIGNATION

4upto 8 13 19 Over8upto15 20 17 Over 15upto30 z! 15 Over 30 to 50 up 13

15 up to ,30 over 30 up to 50

30 45

40 37

1

FG 15

FG40.

2) S$ccial Grq Iron Castings Where Chemical Comfio$ion L More Important, Such as Ingot Mould Castings

CHEMICAL COMPOS~ION DEG~T;NATKON *

c -- Element Percent

Carbon equivalent 4.0 to 5-l 7

Tdt: 2::: $1: ) , 3.5 I Silicon l-20 to 1.80 1 Manganese O-60 to o-90 ) FG35Si 15 Chromium, Max o-15 , : Copper, MUX 0.10 Sulphur, Max o-080 Phosphorus, Max o-400 J

. b) Malleable Iron Castings

1) Bluck-Heart Malleable Iron Castings

SECTIONAL THICIC- DIAMETEROF TEST TENSILE DESIGNATION NESS OF CASTINGS BARASCAST STRENGTH

mm mm kgf:mm* Min

All sizes :: :;

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

5

IS:484301968

2) Pearlitic MalLsab2e Iron Castings

SECTIONAL THICKNESS DIAMETER OF TEST OF CASTINGS BAR AS CAST

mm mm

_ A!1 sizes 15

All sizes 15

All sizes 15

All sizes 15

All sizes 15 _

3) Whit++Heart Malleable Iron Castings

SECTIONAL THICKNESS DIAMETER OF TEST _ O.F&9I-IIVGS BAR AS C&T

mm mm

8 and under Over8up@ 13 Over 13

8 and under Over8upto 13 Over 13

c) Spheroida or

‘I&s;L~ &&.NGTH kgf’/mma

Min

80

70

60

50

42

38

1; 15

9 * 12 15

TENSILE STRENGTH kgfjmm*

Min

DESIGNATION

70 PM 70

65 PM 65

55 PM 55

50 PM 50

45 PM 45

TENSILE STRENGTH -

, kgt;imm* iMi72

DESIGNATION

36-l

40 F 42J 28 32 35

WM 42

WM 35

Nodular Graphite Iron Castings

ELONGATION, PERCENT

Min

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

IS:4843-1968

d) Austenitic Flake Graphite iron Castings

th3UZCAL thWMZ’ION DESIGNATION ~_--_-~--_-----L~

Elemrnt Pt??iZYlt

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

Ccwer 5-50 to 7.50 Chromium 130 to 2.50 1

J

e) Austenitic Spheroidal or Nodular Graphite Iron Castings

CHEMICAL &aPOSITION DESIGNATION --- L \

Ekmcnt Percent

carbon, MUX 390 Silicon 190 to 2.80 1 Manganese Nickel Chromium Phosphorus, Max

.

O-70 to l-50 18-O to 22-O ASG Ni 20 Cr 2

1.00 to 2.50 0.080

f) Ala-don-lt~istaatxrollcartinga

CHEMK4L(hlPOSlTION DESIONATI~N v

Ekmeni Percent ’

Total carbon Graphite carbon, Max Ev6 ’ * Silicon @3 to 0.8 Manganese 0.3 to 0.8 Nickel 3-3 to 5.0 i ABR33Ni4Cr2 Chromium 1+ ~2-5 Molybdenum, Max @75 I Sulphur, Max 015 Phosphorus, Max 090

EC> -elc-wP

1

1) Unallopd (General Engineering) Steel Caslings TENSILE STRENGTH DJSIGXUTIOXU

kgf/mms Min 125 105 zz:

ISr4843-1968

E cs cs 85 71 55 cs 55 47 cs 47 41 cs 41

2) Unaltoyed Special ( High Magnetic Permeability ) Castings

TENSILE STRENGTH DESIGNATION kgf/mm8 35 to 44 CSM 35 41 to 50 CSM 41

3) Alloy Steel Castings

CHEMICAL COMPOSM’ION r --

Element Percent

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

h) Heat-Resistant Steel Castings

CHEMICAL COMPOSITION r --h--_------\

Element Percent

Carbon 1.20 to.1*40] Silicon, Max 290 Manganese, Max 1.00 I Chromium 26.0 to 30.0 k Nickel 4.0 to 7.0 / Sulphur, Max 0.050 Phosphorus, Max 0.050 i

j) Corrosion-Resistant Steel Castings

CHEMICAL COMPOSITION f Y-h-- -I

Element Percent

Carbon Silicon, Max Manganese, Max Nickel, Max Chromium Molybdenum, Max

8

DESIGNATION

CS 50 Cr 1 V 20 -

DESIGNATION

CSH 130Ni6Cr28

DESIGNATION

CSC 16 Cr 13