Rolled rectangular cross-section product. Medium foil has a thickness of less or equal to 0.049 mm and greater than 0.013 mm.

Typical Applications

Application in conversion processes

Standard Format

Rolls and strips

Applicable Standards
Aluminum Standards and Data,
The Aluminum Association.

ASTM B-479.

.

 

Relevant Characteristics

• High flexibility.
• Our lubricants comply with the following regulations of U.S. Food & Drug Administration:
21 CFR 178.391 Rolled sheets and foil.
21 CFR 172.884 Direct food additives.
21 CFR 178.365 Indirect contact with food.

21 CFR 178.362(b) Indirect contact with food)

• Machine finishing (polished on both sides) and polished Matt finishing (upon request and previous verification of orders).


 

All tolerances conform to Standard AA. However, the plant is able to provide narrower tolerances in some cases (including 1/2 ASTM or AA), previous verification of orders.

Product and Dimensional Limits
   

WIDTH SPECIFICATION
(mm)

FOR THICKNESS OF:
(mm)

FINISHING

WIDTH TOLERANCE
(± mm)

125 - 1220 inc.

0.013 - 0.049
inc.

Polished / Matt

1.0

250 - 990 inc.

0.013 - 0.030
inc.

Polished Both Sides

25.4 - 990 inc.

0.030 - 0.049
inc.

Polished Both Sides


   

OUTSIDE DIAMETER
(mm)

THICKNESS SPECIFICATION
(mm)

THICKNESS TOLERANCE
% (±)

MAXIMUM PINHOLES

650 ± 50

0.013 - 0.016
inc.

10

100

0.016 - 0.020
inc.

10

10

0.020 - 0.049
inc.

10

0


 

 

 

 

THICKNESS SPECIFICATION
(mm)

OUTSIDE DIAMETER
(mm)

JOINTS

MAXIMUM

AVERAGE PER ROLL IN LOT

0.013 - 0.049
inc.

UP TO 250

1

1

250 – 350 inc.

2

1

350 – 450 inc.

2

1

450 - 700

2

1

THICKNESS SPECIFICATION
(mm)

SURFACE CONDITION* “MINIMUM PURITY” (ONLY TEMPER O)**

INSIDE DIAMETER

0.013 - 0.049 inc.

"A"

76 O 152,
Winding on aluminum or steel core


* Reference to test method in ASTM B-479 standard.
** Purity does not apply to tempers HXX.

N/A = Not Applicable.

Mechanical Properties (Applies only to foil with thickness of 0.016 mm and higher)

         

 

 

 

 

ALLOY

TEMPER

TENSILE STRENGTH
(kg/mm2)

MINIMUM

MAXIMUM

1145

O

-

9.7

H19

14.3

-

H24

9.7

13.8

Chemical Composition and Standard Designation

 

 

 

 

 

 

 

AA

Silicon

Iron

Copper

Manganese

Magnesium

Chromium

Designation

1145

0.55 Si + Fe

0.05

0.05

0.05

-


 

 

 

 

 

 

 

AA

Nickel

Zinc

Titanium

Other

Minimum Aluminum

Designation

C/U

Total

1145

-

0.05

0.03

0.03

-

99.45



Values shown refer to the maximum percentage by weight allowable by element, except when a different range is established or when explicitly defined otherwise