Aluminum closure sheet introduction

Aluminium closure sheet

Aluminum closure sheet's greatest qualities are drawability and lacquer adhesion, guaranteeing the highest quality printing of drawings and designs. Signi aluminium produces a range of quality alloys and tempers for a wide variety of closure applications, from liquor, spirits and soft drinks to pharmaceutical packaging.
Signi aluminum supplies aluminium closure sheet and coils for the manufacture of bottle closures. Applications range from screw caps for whiskey and other beverage bottles to aluminum closures for wine bottles. Aluminum - the ideal material for the production of bottle closures:
  • • is light weight
  • • is easily and economically recycled
  • • has superior barrier qualities
  • • has good formability
  • • offers a bright finish for decoration.

Dimensions

Parameter

Range

Standard

Tolerance

Thickness (mm)

0.18 — 0.25

0.18, 0.20

+0.005/-0.005

Width (mm)

50 — 1250

813, 845, 833.8,835

+0.5, -0

Length (mm)

400 — 1000

655,706

+0.5, -0

Diagonal difference for sheet (mm)

1 max

-

-

Coil sizes (mm)

OD: 1450 max ID: 75,150,300, 508

-

-

Coil density (kg/mm)

3.5 max

-

-

Offer for thickness and width outside the range may be quoted on specific request

Surface

Mill finish, color coated, chromated, varnished

Earing Typical value: < 2 per cent for >=0.18 mm thickness

Mechanical properties

Alloy (AA)

Temper

UTS (mpa)

% E (min) (at 50 mm gauge length)

Min

Max

3105

H14

150

200

1

8011

O

8.5

12

15

H14

125

170

1

H24

125

160

1

Chemical composition

Alloy (%)

AA 3105

AA 8011

Fe

0.70

0.6-1.0

Si

0.60

0.5-0.9

Mg

0.20- 0.80

0.05

Mn

0.3-0.8

0.20

Cu

0.30

0.10

Zn

0.25

0.10

Ti

0.10

0.08

Cr

0.10

0.05

Each (others)

0.05

0.05

Total (others)

0.15

0.15

Al

Remaining

Remaining

Single number indicates maximum content

Packing

Sheet: Aluminium closure Sheets are placed in wooden boxes on wooden skids with runners along the length of the sheet. They are wrapped in HDPE with hardboard on top and bottom of the stack. Hoop iron strapping runs along the length of the sheets. Silica gel packets are put in the boxes for moisture protection.

Alternatively, they are wrapped in a poly-laminated gunny or polythene, strapped with a hoop iron strap and clip and placed on a wooden pallet. Edge guards are used and the sheets are wrapped with protective thermocol sheets.

Coil: Coil is placed on wooden pallets in either eye-to-sky or eye-to-wall condition, wrapped in HDPE fabric and hardboard, and strapped with hoop iron. Silica gel packets are used for moisture protection.


Company profile

We would like to introduce Signi’s aluminium closure sheet to you, the first choice for your closure products-- ropp caps, PP cap, pilfer proof cap, screw cap, caps and closures, aluminum cap, aluminium closure. Please take a minute to familiarise yourself with Signi’s capabilities, and we hope they demonstrate our suitability for being your preferred supplier. ...

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