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Members RepresentingSHRI S. K. MITRA Indian I ron Steel Co Ltd, Eurnpur
SHRI S. DUTTA Alternate)SHRI P. K. MUK HERJ EE Braithwaite Co Ltd, Calcutta
SHRI AMIT KUMAR BHATTA-ACHARPA ( AhffXZte
SHRI M. V. NA~ESHAI AH Metallurgical Engineering Consultants ( India )Ltd, Ranchi
SHRI KAMM AL PRAEASH (Alternate )SHRI P. V. NAIK Richardson Cruddas L td, BombaySHRI N. S. R. V. RAJ U Hindustan Shipyard L td, Visakhapatnam
SRRI D. KRI SHNAMURTHY ( Alternate )SHRI S. K. SADHU J essop Co Ltd, Calcutta
SHRI S. C. CHAKRAVARTI ( Alternate )SHRI M. C. SAXANCDHAR Stup Co Ltd, Bombay
SHRI M. K . CHATTERJ EE ( Alternate )SHRI K. R. SENGUPTA J oint Plant Committee, Calcutta
SRRI B. P. GHOSH ( Alternate )SRRI S. N. SINGB EMC Steelal Ltd, Calcutta
SHRI C. K. NAG ( Alternate )SHRI K. S. SRINIVASAN National Buildings Organization, New Delhi
SHRI A. K. LAL ( Alternate )SHRI K. SURYANARAYANAN Indian Aluminium Co Ltd, Calcutta
SHRI G. M. ME NON ( Alternate )SHRI D. THIRUVENGAUAM Tube Products of India, Madras
SHRI K . V. VI J AYARAGHAVAN ( Alternate )SHRI S. G. TUDEKAR Steel Authority of India Ltd (Rourkela Steel
Plant ), RourkelaSHRI J . N. BHAWBRY ( Alternate )
SHRI K. RAGRAVENDRAN, Director General, IS1 ( Ex-o o Member )Director ( Strut 8z Met )
SecretarySHRI S. S. SETHI
Joint Director ( Strut & Met ), IS1
Special Sections Subcommittee, SMDC 6 : 1
Convener
SHRI S. K. MITRA The Indian Iron Steel Co Ltd, Burnpur
MembersSHRI P. G. BARDHAN The Braithwaite Co Ltd, Calcutta
SHRI B. K . PAL ( Alternate )SERI P. V. CHANDRAMOHANSHRI A. P. CHAKRABORTY
Cochin Port Trust, CochinPort Trust Calcutta; Calcutta
SHRI A. R. KAR ( Alternate )DIRECTOR ( GD-I 1 Central Water Commission, New Delhi
DEPUTY DIRECTOR ( GD-I ) ( Alternate )
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IS : 10182 Part 2 ) - 1985
I ndi an St andard
DIMENSIONS AND TOLERANCES FORHOT ROLLED TRACK SHOE SECTIONS
PART 2 SECTION TS HI
0 FOREWORD
0.1 This Indian Standard ( Part 2 ) was adopted by the IndianStandards Institution on 20 December 1985, after the draft finalized bythe Structural Sections Sectional Committee had been approved by theStructural and Metal Division Council.
0.2 The track shoe sections form an important component of the earthmoving equipment and are subjected to heavy wear and tear duringusage. There are several types of track shoe sections used in themanufacture of earth moving equipment. This standard which is secondin series covers section meant for extreme service conditions and lays
down the dimensions and tolerances applicable to the same. Part 1 ofthe standard covered TS-Ll type of shoe sections.
0.3 In this standard the recommendations for material are given inAppendix A to give guidelines to the manufacturers of track shoesections. It is not intended to be mandatory and is given as a source ofinformation based on the present experience of manufacturers and usersin the country to assist the development and use of these sections.
0.4 For the purpose of deciding whether a particular requirement of this
standard is complied with, the final value, observed or calculated,expressing the result of a test or analysis, shall be rounded off in accord-ance with IS : 2-1960*. The number of significant places retained in therounded off value should be the same as that of the specified value inthis standard.
1. SCOPE
1.1 This standard ( Part 2 ) covers dimensions, dimensional tolerancesand mass of hot rolled track shoe section TS-Hl meant for extremeservice conditions.
*Rules for rounding off numerical values ( rcuised ).
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1.2 The rolling and cutting tolerances are also covered in this standard.
2. SYMBOLS
2.1Letter symbols used in this standard ( see Fig. 1 and Table 1 ) are asfollows:
LtL a
twttwb
tPHWB and CD and F
E and F
G
Rl
R2R3R4
R5
R6
R7R8 R9R I O
RI1
3. DESIGNATION
total length,
grouser axis length,
thickness of grouser top,
thickness of grouser bottom,
plate thickness,
grouser height,
centre position for RI,
centre position for R2,
centre position for R3 and R4,
centre line basic distance,
toe bottom radius,
toe top radius,
heel bottom radius,
heel top radius,grouser radii,
grouser to toe fillet radius,
grouser to plate fillet radius,plate to heel matching radii,
toe radius, and
heel radius.
3.1 The shoe section shall be designated as TS-HI.
4. DIMENSIONS AND TOLERANCES
4.1 Dimensions and dimensional tolerance shall be as given in Table 1.The unspecified tolerance on dimensions in Table 1 shall be j, 0.8 mm.
5. MASS5.1 The mass per unit length of the section shall be 57.4 kg/m based ondensity of steel as 7.85 kg/dma.
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7.3 Flatness - The flatness at any straight edge line on the link face ofthe section shall be within the following limits:
Convexity Not permittedConcavity 0.5 mm M U X
7 4 Mass - Tolerance on mass per metre length shall be 2.5 percent
EP
CONVEXITY J / LINK FACE
FLATNESS
CAMBER
FIG. 2 METHOD OF MEASURING CAMBER, SWEEP ANDCONCAVITY/CONVEXITY
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8. LENGTH
8.1 Length of shoe sections shall be as agreed to between the purchaserand the supplier.
8.2 Cutting tolerance on length shall be las agreed to between thepurchaser and the supplier.
9. SURFACE QUALITY
9.0 General - The provisions on surface quality given in 9.1 are to beused as an exception and not as a rule. The purchaser and supplier shallagree on the number of defects permissible on a length of shoe whichshall also be mutually agreed. An over-riding requirement is that surfacedefects should not in any way be detrimental to the final requirementsafter heat treatment of the component.
9.1 Laps and Seams - No laps or seams shall be permitted in theGrouser Fillet ( Radii R6 and R7 ). Maximum depth of laps or seamson the grouser sides, plate and on the-toe and heel edges shall be 1 mm.
9.2 Guide Marks - No guide marks shall be permitted in the grouserfillet ( radii R6 and R7 ). In the other locations the maximum depth ofguide marks shall be 1 mm below the normal surface.
9.3 Material defects such as piping and laminations are not permitted.Hair line cracks are not permitted on grouser fillet ( radii R6 and R7 ).However, hair line cracks up to 1 mm depth in other areas may beremoved by grinding by the supplier.
9.4 Surface defects, such as linear scars, insertions, roll scars, surfaceroughness, scale scars, jaw scars due to rolling, causing notches are notpermitted on grouser fillet ( radii R6 and R7 ) and in other areaspermitted up to 1 mm depth without grinding.
APPENDIX A( Cl auses 0.3 and 6.1 )
RECOMMENDED MATERIAL FOR HOT ROLLEDTRACK SHOE SECTION TS-HI
A-l. GENERAL
A-l.1 The appendix covers the requirements for the steel for the trackshoe section TS-Hl to be supplied in hot-rolled condition.
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A-2. CHEMICAL COMPOSITION
A-2.1 The ladle analysis of the steel shall be as follows:
Constituent Percent
Carbon 0.28-0.34
Manganese 0*80- 1.30Silicon 0.15-0.35
Boron o*ooo 5-0.003Phosphorus 0.04 Max
Sulphur 0.05 Max
Residu al el ement
Chromium 0.20 Max
Nickel 0.25 Max
Molybdenum 0.10 Max
NOTE The boron factor should be 18-22.
A-2.2 Product Analysis - The product analysis shall be carried outon the finished product. Permissible variation in case of such productanalysis from the limits specified in A-2.1 shall be as follows:
Constituent Variation Percent
Carbon f 002
Manganese f 005Silicon f 0.03Phosphorus f 0.005
Sulphur 0.005
A-3. SUPPLY CONDITIONS
A-3.1 Steel shall be supplied in fully killed condition.
A-3.2 Grain Size - The grain size or index number as determined bythe method given in IS : 2853-1964* shall be between 5 and 8.
A-3.3 Inclusion Rating - The steel shall be free from non-metallicinclusions and, if present, it shall not exceed the inclusion ratings of 3A,3B, 25C and 25D thin series ( see IS : 4163-1982t ).
A-3.4 Decarburization - Maximum affected depth of decarburizationshall be 0.75 mm per surface. Carbon free depth shall not be permitted.
*Method of determining austenitic grain size of steel.Method for determination of inclusion content in steel by microscopic method
( Jht mision .
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A-3.5 Wardenability - The hardenability of steel determined inaccordance with IS : 3848-1981* shall conform to the following:
De_Wz H ar dn ess
mm HRC15 48-55
50 45-527.0 40-48
A-4. ME CHANICAL PROPERTI ES
A-4.1 The jtzel shall have the following typical mechanical properties:
Tensile strength 980 MPa ( 100 kgfjmmz ), MinElongation 14 percent, MinIzpact value 29 J ( 3.0 kgf. m/cm2 ), Min
Noz Ti:se properties should normally be achievable when hot rolled sectionsare austex:I;-d water quenched and furnace tempered at 400C for 2 hours.
A-4.1.1 ?l:e specimen for conducting these tests should be taken fromlocations i::i:icated in Fig. 3.
FIG. 3 LOCATION OF TEST SPECIMEN
*Mettod for end quench test for hardenability of steel (firsl revision ).
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Continued from page 2 )
MembersREPRESEIW~TIVE
REPRESENTATIVEREPRESENTATIVEREPRESENTATIVE
SERI A. G. RAMA RAO
Representing
Metallurgical & Engineering Consultants ( India )
Ltd, RanchiIron & Steel Control, CalcuttaThe Hindustan Co Ltd, BombaySteel Authority of India Ltd ( Rourkela Steel
Plant ), RourkelaSteel Authority of India Ltd ( Bhilai Steel Plant ),
BhilaiSRRI N. SEETARAMAIAH ( Alternate )
S RI A. K. SEN~UPTA Metro ( Railways ), CalcuttaSHRI K. R. SHENOY Tractor Engineers Ltd, Bombay
SERI S. A. JOQLEKAR ( Alternate )SHRI R. SRINIVASAN Hindustan Motors Ltd, Trivellore
SHRI N. RAQRAVENDRAN ( Alternate I )SHRI U. S. UMANATH ( Alternate II )
:SHRI P. VIS~WAKARMA Tata Iron & Steel Co Ltd, JamshedpurSHRI K. JACOB ( Alternate )
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