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£_õ & Gm (CG & M) T«t£ 1.2.26-30 dLô] ùRôPo×d LÚj§Vp
@©hPo (Fitter) - A¥lTûP ùTôÚjÕRp (Basic Fitting)

EúXôLeL°u CVp× Utßm CVk§Wd Ti×Ls (Physical and mechanical
properties of metals)
úSôdLeLs: ClTôPj§u Ø¥®p ¿eLs ùT\ úYi¥V A±Ü §\uLs
• EúXôLeL°u TpúYß CVp× Utßm CVk§Wd Ti×Lû[d A±Rp
• EúXôLeL°u CVk§Wl Ti×L°u £\l× RuûULû[ A±Rp.

EúXôLeL°u Ti×Ls (Properties of
metals)

EúXôLeLÞdÏ TX Ti×Ls EiÓ
ETúVôLjûRl ùTôÚkÕ ùYqúYß
EúXôLeLs úRokùRÓdLl TÓ¡u\u.

EúXôLeL°u CVp×d Ti×Ls
(Physical properties of metals)
LPjÕm RuûU (Conductivity)
• ¨\m (Colour)
ùYlTjûR, ApXÕ ªu®ûNûV LPjÕm
• GûP APoj§ (Weight/Specific gravity)
RuûULs EúXôLj§u ùYlTd LPjÕm
• LhPûUl× (Structure) §\²u ApXÕ ªu LPjÕm §\²u
• LPjÕm RuûU (Conductivity) A[YôLd ùLôs[lTÓ¡u\]. CdLPjÕm
§\u, EúXôLjÕdÏ EúXôLm UôßTÓm
• LôkRj RuûU (Magnetic property)
RôªWØm, AÛª²VØm, ùYlTm, Utßm
• EÚÏm RuûU (Fusibility) ªu Nd§ûV SuÏ LPjÕm RuûUd
¨\m (Colour) ùLôiPûY.

TpúYß EúXôLeLs TpúYß ¨\eL°p LôkRj RuûU (Magnetic property)
¡ûPd¡u\]. GÓjÕdLôhPôL RôªWm LôkRjRôp JÚ EúXôLm LYokÕ
GÓlTô] £Ll× ¨\j§p Es[Õ. ùUu G@Ï CÝdLlÓUô]ôp, AkR EúXôLjÕdÏ LôkRj
¿X LÚl×l ThÓ úTôu\ úRôt\ØûPVÕ. RuûU EiÓ G]lùTôÚs.
GûP (Weight) £X ÕÚl©¥dLô G@ûLj (stainless steel) R®W

GûPûPl ùTôÚjÕ JqùYôÚ EúXôLØm GpXô YûL CÚm× ùTôÚhLÞm LôkRj
UôßTÓm. AÛª²Vm úTôu\ Ïû\kR RuûU ùLôiPûY. GpXô YûL CÚm×
GûPÙs[ EúXôLm 2.8 APoj§ Gi NôWô EúXôLeLÞm AYt±u áhÓ
ùLôiPÕ. LôÃVm (lead) úTôu\ EúXôLm EúXôLeLÞm LôkRj RuûU At\ûY.
9.0 (specific gravity) APoj§ Gi ùLôiP A§L EÚÏm RuûU (Fusibility) (Fig 3)
GûP Es[ EúXôLm BÏm.
LhPûUl× (Structure) (Figs 1 & 2)

ùTôÕYôL, Es Öi LhPûUl×dLû[
(internal micro structure) ùTôÚjÕ
EúXôLeLû[l ©¬jÕd LôQ Ø¥Ùm.
úR²Úm× (wrought iron) Utßm AÛª²Vm Sôo
YûL LhPûUl×Lû[d ùLôiPûY.
YôolTP CÚm× Utßm ùYiLXm
U¦jÕLsLs (granular) YûL
LhPûUl×Lû[d ùLôiPûY.

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