Page 967 - Industrial Power Engineering and Applications Handbook

Table 30.1 Selected properties (average) of copper and aluminium at 20°C

Standard 1 opper Commrrt rcrl purit\ tilurntnium (for elritrri (11 use)
(IACS)'
~~ 1 2 1
7
~ ~~~~ ' ~ ~
Relevant standards IbC 60028 I t- IEC 60105 --f
i 150 209- I .2
~ ~-- ~ ~ ~ -~ ~~ ~~
Standard grade\
(a) As in BS , E1E'- Mh HEY ~ WPh E ~ 91E'
(b) A\ in BS 2898 (IS0 209-1) i 1350 6063 A 6101A
1
D 50s - WP"
(c) Equivalent lndal grade\ ,-
CIS-M~
50s - WPb
~ -p
Physical properties
(a) Chemicd composition % I
-~ ~~
Copper (Cu) Cu. Si. Fe ~ Not inore than 0 5% 0 1 0.05
Magnaium (Mg) 0 6-0 9 0.4-0.9
Silicon (Si) % 99 9% pure Mg, Cr, Sn, 7n and Mn = Nil 0 3-0 6 0.3-0.7
Iron (Fe) 0 15-0 15 0.4
Cr, T,. Zn and Mn % I 06 0. I
Aluminium
~
~
Specific heat gm.cal/"C
~~
Density igdcm')
~
Melting point i"C)
~
~ ~~
Mechanical properties
-- ~
p~~ p~
Ultimate tensile strength hgflmm' 22 to 26 6 517 0 IS 5/23 5 20 5/25
~ ~~
Ultimate \hearing strength kgflmin? 55 I6 5 15
~ ~- ~~~ ~- - ~ ~~
Modulus ot elasticity b kgflmm' 12,000 7000 6700 6700
~~ ~p I ~~
0 2% tenvle-proot \trcngth kgflmni' 60-804 of thc , ~ 11/19 5 16 5/22
ten\ile wength
I
Electrical properties
Volume resistivity or specific rmihtance (p)
(a) in p. (2. cm. I7241 2 873 3.113.6 3.133
il . iiim ' 1 7241 x IO ' 3.1 x IO 'l3.6 x IO '
(h) in ~ l 2871 x lo-' 3.133 x IO
m