china aluminum profile for South America market Columbia Chile Bolivia Extrusion aluminum profile supplier

Alloy

Si

Mg

Fe

Cu

Mn

Zn

Cr

Ti

Impurity

  Ai

Unit

Total

<0.1

<0.1

<0.1

<0.05

<0.15

Surplus

<0.25

0.04-0.35

<0.15

<0.05

<0.15

Surplus

 ≤0.1

≤0.15

≤0.05

<0.1

<0.05

<0.15

Surplus

  0.1

  0.1

  0.1

 0.05

<0.15

Surplus

Class

                         Min-average film thickness

                    Min-part film thickness

AA10

AA15

AA20

AA25

Class

Anodizing

Paint film

Composite film

Min-average film thickness(um)

Min-part film

thickness(um)

Min-part film thickness(um)

Min-part film

thickness(um)

≥10

≥8

≥12

≥21

≥10

≥8

≥7

 ≥6

 (Electrophoresis coating profiles is generally supplied by Class B,but also supply other levels according to customer’s requirement.)