IEr28-19E5
TAILE T CHE}|ICAL COMPOSITION
(
Claur 1,1
CtrxrtJruurrt
)
Prncxxr
Grade
I
lrn
6.G,4 0
Phorphorur
0.30+50
Grade
lO'O
2
Mit
o,50 Min
Mu
Grade
Grade 4
Gradc
6'5.t.5
9-(Lll.o
lr'G13.l
o.to Min
0'15 Max
0'15 Min
2.o-s,o
0'25 Mar
O'50
Mu
Mat
3
5
Lcad
0'25 Mor
0'25
LIAc
0'5O Max
0 {t5 Mat
Nickel
O'70 ivlax
0'10
Iron
0'30 Max
0'10 Ma:
0'15 Mcr
Aluminium
0'01 Mor
0'01 Mat
0'01 Mar
Mar
Mat
0'OS Max
0'3O
l$ Mu
0'25 lltor
0 50 Mat
2'O
.{ntimooy
Ul0 Mot
Silicon
0'02 Max
0'02 Mat
Total Impuritics
l'20 lfiar
0'60 Mor
0 50 Ma-t
Copper
Remainder
Rrmainder
Remainder
0'02 Max
0'80 Mat
Remainder
O'20
Mu
Remainder
5. MECHANICAL PROPERTIES
5.1 Tcuile Test
castings, when rested in accordance with
- The
IS : 255,h'1977*, shall
have the tensile propertier ar given in Table 2.
5.2 Foror of Tcrt Bers
- Thc test bars
the appropriate types as described in IS : I
to one of
6. TRACTURE TEST
6.1 Guttng * Carting sample shall bc
purcharcr in such a manner that the area
practicable in determinin g the uniformity of
meral. If the fr acture shows segregation or
othor defec$, all castingt produced from the
'Method for tearile tcrting of copper and copperell
fRecommendcd procedure for in:pection of
(jrst rtobbn).
5
Signature Not
Verified
Digitally signed by
SURAJ PRASAD
YADAV
Date: 2023.08.25
14:39:15 IST
Reason: IREPS-CRIS
Location: New Delhi
of
t
at
he
be
raDd cutingr