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3105 aluminum sheet for screw cap
    Compare with 8011 closure sheet, 3105 aluminum sheet has enough strength, so it is stronger enough to bear the gas pressure, so it is widely used for making screw cap for gas liquid bottle, such as soda water and carbonated wine.

    We could treat 3105 aluminum sheet  with phosphoric acid chromated, and DOS coated, printed with different colors, on the basis of our plain sheet.
    We control the materials composition, rolling temperature and time,and annealing temperature to product optimal materials to meet client’s performance needs, such as its opening capability and earing rate.
    With our good flatness and squareness, we could prevent color gapping, unevenness or print misalignment during printing.
Surface type: 
a. Plain mill finish aluminum strip;
b. DOS oil lubricated finish;
c. Chromated finish;
d. One side golden/white/red/blue/black,etc other colored, other side protective lacquered;
e. both sides clear/transparent lacquered;

Chemical Composition
Alloy Si Fe Cu Mn Mg Cr Ni Zn Ti Other Aluminum
Each Total
3105 0.6 0.7 0.3 0.3-0.8 0.2-0.8 0.2 - 0.4 0.1 0.05 0.15 Remainder
Temper Thickness mm Tensile Strength 
Rm MPa
Yield Strength
 Rp0.2 MPa
Elongation %
Bend Radius Hardness HBWa
    min. max. min. max.   180° 90°  
H12 0.2-0.3 130 180 105   3 1.5t   41
H14 0.2-0.3 150 200 130   2 2.5t   48
H16 0.2-0.3 175 225 160   1     56


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