By meeting stringent specifications of globally
competitive companies, Hindalco's flat finstock
has proved its worth in air conditioners, car
radiators and heat exchangers. With the help
of high-quality ingots, state-of-the-art gauge
and shape control and precision slitting, we
manufacture finstock that has tight gauge tolerances
and excellent slit edges. A tight build-up combined
with internal sound metallurgical properties
produce good drawability required for all types
of finning.
| Dimensions |
|
Parameter
|
Range
|
Tolerance
|
|
Thickness
(mm)
|
0.07
— 0.25
|
+/-0.005
up to 0.12
|
|
Partially
annealed: 0.10 — 0.25
|
+/-0.01
for > 0.12
|
|
Width
(mm)
|
100
— 1220
|
+/-0.5
for 100 — 250
|
|
+/-1
for > 250
|
|
Coil
I.D (mm)
|
With
core: 70, 76, 150, 203, 300, 508
|
-
|
| Coil
O.D (mm) |
300
— 1350
Partially annealed: 300 — 550
|
-
|
|
Core
|
Plastic
/ M.S / AL
|
-
|
| Flatness
|
| Less
than 20 I units (typical) |
| Applicable
standards |
|
::
|
ASTM
- B - 209M, Aluminium association —
aluminium standards and data, Hindalco
manufacturing limits (as applicable)
|
|
Mechanical
properties
|
|
Alloy
(AA)
|
Temper
|
%E
(min)
(50mm gauge length)
|
UTS(mpa)
|
|
Min
|
Max
|
|
1050
|
H19
|
1
|
130
|
-
|
|
H26
|
4
|
95
|
130
|
|
1100
|
O
|
20
|
70
|
110
|
|
H14
|
3
|
105
|
140
|
|
H16
|
2
|
125
|
150
|
|
H22
|
20
|
95
|
130
|
|
H24
|
8
|
110
|
145
|
|
H26
|
4
|
130
|
165
|
|
1200
|
O
|
20
|
70
|
100
|
|
H14
|
3
|
105
|
140
|
|
H16
|
2
|
125
|
150
|
|
H22
|
20
|
95
|
130
|
|
H24
|
8
|
110
|
145
|
|
H26
|
4
|
130
|
165
|
|
3003
|
O
|
20
|
95
|
130
|
|
H14
|
3
|
130
|
180
|
|
H18
|
2
|
185
|
-
|
|
8006
|
H25
|
8
|
120
|
145
|
|
O
|
25
|
100
|
130
|
|
8011
|
O
|
25
|
85
|
115
|
|
Chemical
composition
|
|
Alloy
(%)
|
AA1050
|
AA1100
|
AA1200
|
AA3003
|
AA8006
|
AA8011
|
|
Fe
|
0.40
|
0.95
|
1.00
|
0.70
|
1.4
0 — 1.60
|
0.6
— 1.00
|
|
Si
|
0.25
|
(Fe
+ Si)
|
(Fe
+ Si)
|
0.60
|
0.02
|
0.5
— 0.90
|
|
Mg
|
0.05
|
-
|
-
|
-
|
0.02
|
0.05
|
|
Mn
|
0.05
|
0.05
|
0.05
|
1.0
— 1.50
|
0.4
— 0.50
|
0.20
|
|
Cu
|
0.05
|
0.05
— 0.20
|
0.05
|
0.05
— 0.20
|
0.05
|
0.10
|
|
Zn
|
0.05
|
0.10
|
0.10
|
0.10
|
0.05
|
0.10
|
|
Ti
|
0.03
|
-
|
0.05
|
0.1
(Ti+Zr)
|
0.03
|
0.08
|
|
Cr
|
-
|
-
|
-
|
-
|
-
|
0.05
|
|
Each
(Others)
|
0.03
|
0.05
|
0.05
|
0.05
|
0.05
|
0.05
|
|
Total
(Others)
|
-
|
0.15
|
0.125
|
0.15
|
0.15
|
0.15
|
|
Al
|
99.50
|
99.00
|
99.00
|
Remainder
|
Remainder
|
Remainder
|
Packing
Hindalco's flat finstock is packed on wooden
skids in either eye-to-sky or eye-to-wall condition,
wrapped in HDPE fabric and hardboard and strapped
with hoop iron. Moisture protection is ensured
with silica gel packets and as the final step,
the entire packed product is placed in a wooden
cage.
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Aluminium recycling
has
been a common practice
since the early 1900s. The process
does not damage
the metal's structure.
Recycling aluminium cans,
foil and foil containers helps
in conserving energy. |
|
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