| APPLICATIONS
:
-
Current carrying parts of electrical switchgear,
Bus bars and Short Circuit Bars and Rings
for electrical machines.
- Moulds
for Casting Ingots of non-ferrous and ferrous
metals and alloys.
- Electrodes
for resistance / seam / flash butt welding
PRODUCT
DELIVERY FORMS AVAILABLE:
- Extruded
and drawn Round Bars.
- Squares,
Hexagons, Flats and Profiles.
- Forged
sleeves / bushes, rings, discs.
- Die
forged parts.
SPECIAL
GRADES:
For special applications, vacuum melted grade
wherein melting and alloying is carried out
under high vacuum with complete exclusion of
air and without any negative influence of melt
environment, can also be offered. This grade
of alloy is fine grained having oxygen content
less than 40ppm.
|
|
TECHNICAL
SPECIFICATIONS
(Reference Standards
: DIN 17666, BS 2870/2874, ISO 1336)
|
| TYPICAL
CHEMICAL COMPOSITION |
Cr
(%) |
Zr
(%) |
Fe
(%) |
Cu
(%) |
| 0.50
~ 1.20 |
0.03
~ 0.30 |
0.1
(max) |
97.50
(Min) |
|
PROPERTIES
| Shape
of products |
Rounds,
Squares, Hexagons, Flats and
Profiles |
| Typical
values: |
|
| Tensile
strength |
440N/mm² |
370N/mm² |
| Elastic
limit Rp 0.2 |
350N/mm² |
270N/mm² |
| %
Elongation at rupture |
10%
min. |
18%
min. |
| Young’s
modulus |
112000N/mm² |
112000N/mm² |
| Hardness
BHN (62.5) |
145 |
125 |
| Density |
8.9
gms / cc |
| Melting
temperature |
1073
~ 1081 °C |
| Electrical
conductivity |
43.5m/ mm²
min. |
(76%
IACS min.) |
| Thermal
conductivity |
322
W/(m.K) |
| Co-efficient
of thermal expansion |
17
x 10
/ K |
|
|
|
|
Copper
Chromium & Copper Chromium Zirconium
