IS 13902-3: Socket for wire ropes for general purposes, Part 3: Special requirements for sockets produced by casting

10 Pages·1993·1.1 MB·English

by  Bureau of Indian Standards

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“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 13902-3 (1993): Socket for wire ropes for general
purposes, Part 3: Special requirements for sockets produced
by casting [MED 10: Wire Ropes and Wire Products]
“!ान $ एक न’ भारत का +नम-ण”
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IS 13902 ( Part 3 ) : 1993
IS0 3189/3 : 1985

SOCKETS FOR WIRE ROPES FOR GENERAL
PURPOSES
PART 3 SPECIAL REQUIREMENTS FOR SOCKETS PRODUCED BY CASTING
UDC 621’827’174 : 677’721

@ BIS 1993
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 8 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002 ,
December 1993 Price Group 2
Wire sepoR dna Wire stcudorP lanoitceS ,eettimmoC DMH 01
NATIONAL FOREWORD
This naidnI dradnatS hcihw is lacitnedi ot 0SI 3/9813 : 5891 stekcoS‘ rof eriw sepor rof lareneg
sesoprup - traP 3 laicepS stnemeriuqer rof stekcos decudorp yb ’gnitsac deussi yb lanoitanretnI ,
noitazinagrO rof noitazidradnatS ( 0SI ,) saw detpoda yb eht uaeruB fo naidnI sdradnatS no eht
noitadnemmocer fo eht Wire sepoR dna Wire stcudorP lanoitceS ,eettimmoC ( DMH 01 ) dna
lavorppa fo eht yvaeH lacinahceM gnireenignE noisiviD .licnuoC
This dradnats sah neeb deussi ni lareves .strap ehT rehto strap fo siht naidnI dradnatS :era
SI 20931 ( traP 1 ) stekcoS rof eriw sepor rof lareneg sesoprup : traP 1 lareneG -etcarahC
ristics dna snoitidnoc fo ecnatpecca
SI 20931 ( traP 2 ) stekcoS rof eriw sepor rof laraneg sesoprup : traP 2 laicepS stnemeriuqer
rof stekcos decudorp yb gnigrof ro denihcam morf eht dilos
ehT txet fo 0SI dradnats sah neeb devorppa rof noitacilbup sa naidnI dradnatS tuohtiw
.snoitaived niatreC snoitnevnoc ,era revewoh ton lacitnedi ot esoht desu ni naidnI .sdradnatS
noitnettA is ylralucitrap nward ot eht :gniwollof
)a reverehW eht sdrow lanoitanretnI‘ ’dradnatS raeppa gnirrefer ot siht ,dradnats yeht
dluohs eb daer sa naidnI‘ .’dradnatS
)b ammoC ( , ) sah neeb desu sa a lamiced rekram elihw ni naidnI ,sdradnatS eht tnerruc
ecitcarp is ot esu lluf pots ( . ) sa eht lamiced .rekram
nI siht detpoda ,dradnats ecnerefer sraeppa ot niatrec lanoitanretnI sdradnatS rof hcihw naidnI
sdradnatS osla .tsixe ehT gnidnopserroc naidnI sdradnatS hcihw era ot eb detutitsbus ni rieht
ecalp era detsil woleb gnola htiw rieht eerged fo ecnelaviuqe rof eht snoitide :detacidni
international Standard Corresponding Indian Standard Degree of
equivalence
0SI 162 : 379I‘ SI 8124 ( traP 2 ) : 2791 0SI cirteM wercs sdaerht : yllacinhceT
traP 2 retemaiD hctip noitanibmoc ( first revision ) tnelaviuqE
0SI l/569 : 0891 SI 8124 ( traP 4 ) : 6791 0SI cirteM wercs sdaerht : yllacinhceT
traP 4 gnicnareloT metsys ( first revision ) tnelaviuqE

0SI 2/569 : 0891 SI 4 218 ( traP 6 ) : 8791 0SI cirteM wercs sdaerht : yllacinhceT

traP 6 stimiL fo sezis rof laicremmoc stlob dna tnelaviuqE
stun ( retemaid egnar 1 ot 25 mm ) ( first revision )
0SI 3/569 : 0891 SI 4218 ( traP 5 ) : 9791 0SI cirteM wercs sdaerht : yllacinhceT
traP 5 secnareloT ( first revision ) tnelaviuqE
0SI l/9813 : 5891 SI 20931 ( traP 1 ) : 3991 stekcoS rof eriw sepor rof lacitnedI
lareneg sesoprup : traP 1 lareneG scitsiretcarahc
dna snoitidnoc fo ecnatpecca
0SI 2/9813 : 5891 SI 20931 ( traP 2 ) : 3991 stekcoS rof eriw sepor rof lacitnedI
areneg I sesoprup - traP 2 laicepS stnemeriuqer
rof stekcos decudorp yb gnigrof ro denihcam morf
eht dilos
ehT denrecnoc lacinhcet eettimmoc sah deweiver eht snoisivorp fo 0SI 346 dna 0SI 6894
derrefer ni siht detpoda dradnats dna sah dediced taht yeht era elbatpecca rof esu ni -cnujnoc
noit htiw siht .dradnats
roF eht esoprup fo ,gnidiced rehtehw a ralucitrap tnemeriuqer fo siht dradnats is deilpmoc ,htiw
eht lanif ,eulav devresbo ro ,detaluclac gnisserpxe eht tluser fo a tset ro ,sisylana llahs eb
dednuor off ni ecnadrocca htiw SI 2 : 0691 seluR‘ rof gnidnuor off laciremun seulav (revised)‘.
ehT rebmun fo tnacifingis secalp deniater ni eht dednuor off eulav dluohs eb emas*eht sa taht
fo eht deificeps eulav in this standard.
IS 13902 ( Part 3 ) : 1993
IS0 318913 : 1985
Indian Standard
SOCKETS FOR WIRE ROPES FOR GENERAL
PURPOSES
PART 3 SPECIAL REQUIREMENTS FOR SOCKETS PRODUCED BY CASTING
1 Scope and field of application Non-alloy steels shall have a maximum tensile strength of
600 MPa and an elongation of not less than 14 %. Alloy steels
This part of IS0 3189 specifies the special requirements for shall have a maximum tensile strength of 750 MPa and an
materials, method of manufacture and quality control of sockets elongation- of not less than 15 %.
produced by casting. The general characteristics, critical dimen-
sions, prototype test requirements, general quality control and Within the above limitations, it is the responsibility of the
conditions of acceptance are dealt with in IS0 3189/l. socket-maker to select the steel so that, after any necessary
heat treatment (see 4.2). the finished socket meets the perfor-
mance requirements specified in this part of IS0 3189
2 References
4.2 Heat treatment
IS0 261, IS0 general purpose metric screw thread -’ General
p/an.
Socket bodies and pins shall, if necessary, be heat-treated to
IS0 643, Steels - Micrographic determination of the ferritic or ensure that, as quenched, martensitic structures are avoided in
austenitic grain size. the finished socket.
IS0 965, IS0 general purpose metric screw thread - Tolerances.
IS0 318911, Sockets for wire ropes for general purposes - 5 Socket manufacture
Part 1: General characteristics and conditions of acceptance.
Sockets complying with this part of IS0 3189 shall be (open)
IS0 318912, Sockets for wire ropes for general purposes -
type I or (closed) type II, and shall conform to the critical
Part 2: Special requirements for sockets produced by forging
dimensions specified in IS0 3189/l (see table 1 and figures 1
or machined from the solid.
and 2). The sockets shall be neatly and cleanly made.
IS0 4986, Magnetic particle inspection of steel castings.1)

5.1 Bodies
3 General conditions of acceptance
Surfaces of cast steel bodies shall be in a clean, descaled condi-
tion and all sharp edges shall be suitably radiused. All flashes or
Sockets shall comply with the requirements of IS0 3189/l as
fins produced in manufacture shall be removed.
well as with those in this part of IS0 3189
Minor surface defects may be removed by grinding, provided
that the wall thickness at this point is not reduced below the
4 Materials ahd heat treatment
socket-maker’s declared minimum wall thickness.
4.1 Quality of materials
Other small casting defects occurring during manufacture may
be rectified by grinding and subsequent welding, provided that
The steel used shall be produced by the open hearth or electric
the thickness of sound material remaining at the defective point
process, or by oxygen blown process or by any other
immediately before welding is at least 50 % of the original
equivalent process.
thickness. Furthermore, the extent of the welded repair,
measured in any direction, shall not exceed 1,5 times the
Sockets of this type shall be cast from non-alloy or alloy steel
thickness of the metal at that point. The recognized method of
which shall meet the following requirements, as determined by
repair shall comprise the following:
a check analysis on a finished socket:
a) thorough and adequate technical control of all stages of
Sulfur, max. 0,050 %
the repair;
Phosphorus, max. 0,050 %
Combined sulfur and phosphorus content, max. 0,080 96 b) removal of defective metal by chipping or grinding;
1) At present at the stage of draft.
I
IS13902( Part3):1993
1s0 318913 : 1985
cl verification of this removal by radiography, ultrasonics, 6.1 Magnetic flaw or dye penetrant method
magnetic flaw detection or dye penetrants;
Each socket shall be subjected to an approved method of par-
d) pre-heating the casting to requisite pre-heat
ticle crack detection. Ail external and internal surfaces shall be
temperature immediately prior to welding;
examined, and cracks, hot tears, rips or other detrimental
e) filling the excavation with weld metal, the composition defects shall not be accepted.
of the rod being chosen to give mechanical properties
matching those of the casting ;
Acceptable levels of defect should be agreed between the
f) grinding the surface of the weld metal to the level of the purchaser and the manufacturer.
adjacent metal of the socket;
Guidance on acceptable levels is given in IS0 4986.
g) correct reheat treatment of each repaired socket body;
h) verification of crack removal by radiographic or ultra-
sonic examination. 6.2 Radiographic tests
rhe pin ho!es shall be machined in one operation and the Radiographic tests shall be carried out. The number of samples
centreline of the holes shall be at right angles to the centreline shall be in accordance with the following table.
of the socket basket.
5.2 Pins Lot or batch size Sample size
(Number of sockets) (Number of sockets)
The pins shall be forged, forged and machined, or machined
2to 8 2
from the bar, and may be threaded or plain, according to the
9to 15 3
purchaser’s requirements.
16 to 25 5
26 to 56 8
The steel used shall comply with the requirements specified in
51 to 96 13
IS0 31W2. 91 to 156 m
151 to 286 32
The length of the plain portion of a threaded type pin shall be
281 to 566 50
such that the nut will tighten against the shoulder of the pin
561 to 1266 80
and not against the outside face of .the socket.
1 201 to 3 266 125
3 201 to 10 609 200
The threads on pins and associated nuts shall comply with the
coarse pitch series, specified in IS0 261, and tolerance
class Sg, specified in IS0 965. Acceptable levels of defect should be agreed between the pur-
chaser and the manufacturer. Guidance on acceptable levels is
A suitable safety device, such as a split cotter pin, shall be pro- given in the annex.

vided to prevent nuts accidentally becoming displaced.

6.3 Ultrasonic tests
6
Special quality control requirements
for cast sockets As an alternative to the radiographic test, the sockets shall be
subjected to ultrasonic tests. In such cases, the test method
In addition to the general quality control requirements specified and the acceptable levels of defect shall be the subject of agree-
in IS0 3189/l, the following tests shall apply. ment between the purchaser and the manufacturer;

2
IS 13902 ( Part 3 ) : 1993
IS0 3189/3 : 1985
Annex
Radiographic tests - Examples of acceptable
levels of defect
A.1 Acceptable levels of defect for sections up to and including 51 mm
Socket fork and junction - Severity level 1 for cracks and tears
Severity level 2 for other defects
Socket basket - Severity level 1 for cracks and tears
Severity level 3 for other defects
A.2 Acceptable levels of defect for sections over 51 mm up to and including 114 mm’)
Acceptable level
yrogetaC
Description
Level Section
A Gas porosity Al Fork and junction
A Gas porosity A2 Basket
B Sand and slag inclusion Bl Fork and junction
B Sand and slag inclusion 82 Basket
C Type 1 shrinkage Cl 1 Fork and junction
C Type 1 shrinkage Cl 2 Basket
C Type 2 shrinkage c2 1 Fork and junction
C Type 2 shrinkage c2 2 Basket
C Type 3 shrinkage c3 1 Fork and junction
C Type 3 shrinkage c3 2 Basket
- __.
0 Cracks Not permissible Fork and junction
D Cracks cc2 Basket
E Hot tear - Fork and junction
E Hot tear EA 2 Basket
F Inserts - Fork and junction
F Inserts EB 1 Basket
1) In accordance with ASTM E 186-75, Standard reference radiographs for heavy-walled 12 to 4112 in 151 to 114 mm)) steel castings.

3
yhpargorpeR ,tinU ,SIB New ,ihleD aidnI
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Bureau of Indian
and eht seluR and snoitalugeR edam .rednuereht ehT dradnatS Mark
Standards Act, 1986
no stcudorp derevoc yb an naidnI dradnatS syevnoc eht ecnarussa that yeht evah neeb
decudorp ot ylpmoc htiw eht stnemeriuqer fo that standard rednu a llew denifed metsys
fo ,noitcepsni gnitset and ytilauq lortnoc hcihw is desived and desivrepus yb SIB and
detarepo yb eht .recudorp dradnatS dekram stcudorp era osla ylsuounitnoc dekcehc yb
SIB rof ytimrofnoc ot that standard as a rehtruf .draugefas sliateD fo snoitidnoc rednu
hcihw a ecnecil rof eht esu fo eht dradnatS Mark yam eb detnarg ot srerutcafunam ro
serecudorp yam eb deniatbo morf eht uaeruB fo naidnI Standards.
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Bureau of Indian Standards
SIB is a yrotutats noitutitsni dehsilbatse rednu eht ot
Bureau of Indian Standardr Act, I986
etomorp suoiomrah tnempoleved fo eht seitivitca fo ,noitazidradnats gnikram and ytilauq
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Copyright
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ro edarg .snoitangised seiriuqnE gnitaler ot thgirypoc eb desserdda ot eht rotceriD
( snoitacilbuP ,) .SIB
Revision of Indian Standards
stnemdnemA era issued ot standards as eht deen sesira no eht basis fo .stnemmoc Standards
era osla deweiver ;yllacidoirep standard gnola htiw stnemdnema is demriffaer nehw hcus weiver
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setacidni that on segnahc era ;dedeen fi eht weiver setacidni that segnahc era ,dedeen ti is nekat
pu rof .noisiver sresU fo naidnI Standards dluohs niatrecsa that yeht era ni noissessop fo eht
tsetal stnemdnema ro noitide yb gnirrefer ot eht tsetal issue fo SIB‘ ’koobdnaH and sdradnatS‘
ylhtnoM .’noitiddA stnemmoC no this naidnI dradnatS yam eb tnes ot SIB gnivig eht gniwollof
:ecnerefer
toD : .oN DMH 10 ( 0185 )
Amendments Issued Since Publication
dnemA .oN etaD fo eussI txeT detceffA
UAERUB FO NAIDNI SDRADNATS
:sretrauqdaeH
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hcnarB : .DABADAMHA .EROLAGNAB .LAPOHB .RAWHSENABUHB .EROTABMIOC
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