Foil stock

Specifications:

Hindalco's foil stock is produced from high-quality rolling ingots and concast coils. Manufactured with sophisticated equipment, the foil stock is free of surface and sub-surface defects. Matching international quality standards, it can be rolled to thin gauges of aluminium foil for a number of applications.

Stringent quality checks ensure a world-class range of sheets, extrusions and foil products from Hindalco. Continuous upgrades and process improvement enable it to keep pace with the demands of its ever-growing markets.

Dimensions
Parameter Range Tolerance
Thickness (mm) 0.06 — 0.60 +/-5%
Width (mm) 690 — 1600, Deckle matching up
to 1600 is preferred for width
< 800
+2, -0
Coil I.D (mm) on metal / paper core 203,
250, 305, 406, 508
-
Coil density (kg/mm) 1.5 — 3.5
5.5 subject to enquiry
-

Mechanical properties
Alloy (AA) Temper %E (min) (50mm gauge length) UTS (mpa) End use
Min Max
1200 M** 2 125 165 Pharma, medium gauge
H14 3* 105 140
H16 5* 90* 130*
1235 M 2 125 165 Light gauge
8011 M 2 135 180 Pharma, cable warp
8079 M 1 130 170 Double-sided blister
for >9 mic high
strength application
*Typical values
**M temper UTS range is for a typical thickness of 0.28 mm

Chemical composition
Alloy (%) AA1200 AA1235 AA8011 AA8079
Fe 1.00 0.65 0.60 — 0.01 0.70 — 1.30
Si (Fe + Si) (Fe + Si) 0.50 — 0.90 0.05 — 0.30
Mg - 0.05 0.05 -
Mn 0.05 0.05 0.20 -
Cu 0.05 0.05 0.10 0.05
Zn 0.10 0.1 0.10 0.1
Ti 0.05 0.06 0.08 -
Cr - - 0.05 -
Each (Others) 0.05 0.03 0.05 0.05
Total (Others) 0.125 - 0.15 0.15
Al 99 99.35 Remainder Remainder
Single number indicates maximum content

Flatness
Less than 20 I units (typical)

Wedge
Within 0.7% (typical)

Coil build-up quality
Weave — 2 mm (max), total shift 5 mm (max)

Surface quality
Suitable for foil rolling

Applicable standards
ASTM - B -209M, Aluminium association — aluminium standards and data, Hindalco manufacturing limits (as applicable).

Packing

Foil stock is wrapped in HDPE fabric and hardboard, strapped with hoop iron and placed in an eye-to-sky or eye-to-wall position. Moisture protection is provided with silica gel packets.

Applications :
  • Pharma / confectioneries / cigarette foils
  • Foils
  • Tetrapacks