|
Hindalco offers circles, also known as flat
circular sheets, in a variety of diameters
and thicknesses to meet specific needs. Extensively
used in the manufacture of pressure cookers,
non-stick cookware, coated cookware, cans,
etc., they have earned the trust of many leading
brands.
Continuous upgrades and process improvement
enable us to keep pace with the demands of our
ever-growing clientele.
| Dimensions |
|
Parameter
|
Range
|
Tolerance
|
|
Thickness
for circles (mm)
|
0.71
— 6.35
|
for
0.71 to 1.4 +/-0.08
|
|
for
1.41 to 2.5 +0.1, -0.13
|
|
for
2.51 to 4.0 +/-0.13
|
|
for
4.01 to 5.00 +/-0.15
|
|
for
5.01 to 6.35 +/-0.20
|
|
Thickness
for ovals (mm)
|
1.75
— 3.00
|
for
1.75 to 2.5 +0.1, -0.13
|
|
for
2.51 to 3.00 +/-0.13
|
|
Diameter
(mm)
|
102
— 1250
|
(a)
sheared circles +2, -0
|
|
(b)
punched circles +0.5, -0
|
|
Earing
|
<5%
for 'O' temper
<9% for H12, H14, H16, H18
|
-
|
| Die
sizes |
| For
circles |
|
Thickness
(mm)
|
Diameter
(mm)
|
|
<
2.00
|
normal:
190.5, 197, 203, 216, 222, 229, 235,
238,
241, 245, 247.5, 250, 254, 267, 273,
279, 280, 292,
300, 305, 307, 330
|
|
2.00
— 6.35
|
normal:
250, 255, 263, 275, 285, 295, 298, 300,
305,
310, 312, 247.5, 250, 315, 325, 330,
332.5, 335,
336, 350, 355, 358, 360, 365, 370, 375,
380, 385, 387,
390, 395, 406, 410, 412, 415, 416, 430,
435, 456, 465,
484, 485, 489, 490, 517
|
| For
ovals |
|
1.75
— 3.00
|
normal:
198x211, 242.5x159.5, 144x157, 160x173
|
| Mechanical
properties |
|
Alloy
(AA)
|
Temper
|
%E
(min)
(at 50 mm
gauge length)
|
UTS
(mpa)
|
Bend
test:
radius of bend
(T=material thickness)
|
|
Min
|
Max
|
|
1050
|
O
|
29
|
55
|
95
|
close
|
|
H14
|
6
|
95
|
125
|
1/2T
|
|
H18
|
4
|
125
|
-
|
1T
|
|
1070
|
O
|
29
|
95
|
-
|
close
|
|
H14
|
6
|
95
|
120
|
1/2T
|
|
H18
|
4
|
120
|
-
|
1T
|
|
1200
|
O
|
29
|
70
|
110
|
close
|
|
H14
|
5
|
105
|
140
|
1/2T
|
|
H16
|
4
|
125
|
150
|
1/2T
|
|
H18
|
3
|
140
|
-
|
1T
|
|
3003
|
O
|
25
|
90
|
130
|
close
|
|
H14
|
5
|
130
|
180
|
1/2T
|
|
H16
|
4
|
150
|
195
|
1T
|
|
H18
|
3
|
170
|
-
|
3T
|
|
3103
|
O
|
25
|
90
|
130
|
close
|
|
H14
|
5
|
130
|
180
|
1/2T
|
|
H16
|
4
|
150
|
195
|
1T
|
|
H18
|
3
|
170
|
-
|
3T
|
|
8011
|
O
|
25
|
85
|
120
|
close
|
|
H14
|
5
|
125
|
160
|
1/2T
|
|
H16
|
4
|
150
|
180
|
1T
|
|
H18
|
3
|
175
|
-
|
3T
|
|
3103DAQ*
|
O
|
24
|
90
|
130
|
close
|
|
3103SDAQ**
|
O
|
24
|
90
|
130
|
close
|
|
H14
|
5
|
130
|
180
|
1/2T
|
|
5251
|
O
|
16
|
175
|
215
|
close
|
|
6082
|
O
|
14
|
150
|
175
|
1T
|
|
3103
(ovals)
|
H14
|
3
|
130
|
180
|
1/2T
|
|
**
For thickness 2.6 mm and less, elongation
values are for guidance only and not
guaranteed. For this purpose bend test
as specified may be carried out.
|
|
*
Grain size of 3103DDAQ (deep drawn anodising
quality) is <= 100 microns
|
|
**
Grain size of 3103SDAQ (shall drawn
anodising quality) is <= 150 microns
|
| Chemical
composition |
|
Alloy
(%)
|
AA
1050
|
AA
1070
|
AA
1200
|
AA
3003
|
AA
3103
|
AA
8011
|
AA
5251
|
AA
6082
|
| Fe |
0.40
|
0.25
|
1.00
|
0.70
|
0.70
|
0.6
— 1.0
|
0.50
|
0.50
|
| Si |
0.25
|
0.20
|
(Fr
+ Si)
|
0.60
|
0.50
|
0.5
— 0.9
|
0.40
|
0.70
— 1.30
|
| Mg |
0.05
|
0.03
|
-
|
-
|
0.30
|
0.05
|
1.70
— 2.40
|
0.60
— 1.20
|
| Mn |
0.05
|
0.03
|
0.05
|
1.00
— 1.50
|
0.90
— 1.50
|
0.20
|
0.10
— 0.50
|
0.40
— 1.00
|
| Cu |
0.05
|
0.04
|
0.05
|
0.05
— 0.20
|
0.10
|
0.10
|
0.20
|
0.20
|
| Zn |
0.05
|
0.04
|
0.10
|
0.10
|
0.20
|
0.20
|
0.20
|
0.20
|
| Ti |
0.03
|
0.03
|
0.05
|
0.10
(Ti + Zr)
|
0.10
(Ti + Zr)
|
0.08
|
0.20
|
0.10
|
| Cr |
-
|
-
|
-
|
-
|
0.10
|
0.05
|
0.20
|
0.25
|
| Each (others) |
0.03
|
0.03
|
0.05
|
0.05
|
0.05
|
0.05
|
0.10
|
0.05
|
| Total (Others) |
-
|
-
|
0.125
|
0.15
|
0.15
|
0.15
|
0.20
|
0.15
|
| Al |
99.50
|
99.70
|
99.00
|
Remainder
|
Remainder
|
Remainder
|
Remainder
|
Remainder
|
|
Single
number indicates maximum content
|
| Surface
quality |
| Free
from scratches, pit marks, rolling bands
|
| Applicable
standards |
| ASTM
- B - 209M, Aluminium association —
aluminium standards and data, Hindalco
manufacturing limits (as applicable). |
Packing
The
circles are packed in boxes or pallets with
interleave paper, polythene, foam / thermocol.
Pallets and boxes are strapped with hoop iron
and clips. Silica gel packets are placed in
the boxes for moisture protection.
|