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Standard

Raw material national standard

Trade Mark and State

6063 T5

Standard No.

GB5237.1-2008

Appearance Quality

1.The surface of the sectional material should be neat, and no presence of such defects of crackles, peeling, corrosion, bubbles, etc..
2.It is allowed to have slight pressed dents, bumps and abrasion on the surface of the sectional material. Their allowable depth is not greater than 0.07mm for a decorative surface, and is not greater than 0.10mm for a non-decorative surface, and the depth of an extruded mark of a mould is not greater than 0.03mm.
3.An end of the sectional material is allowed to have local deformation due to being sawed, and its vertical length should not exceed 10mm.

Allowable Deviation and High Accuracy of Dimensions

Level clearance

Degree of curvature

Torsion

Angle

Length

On a random 25m width≤0.15mm

On a random 300m length≤0.3mm

On the length of each meter≤1.2mm

±1.0°

Nominal length≤6m±15mm≤6m±15mm

Mechanical Properties

Webster hardness(HW)

Tensile strength

Yield strength

Elongation percentage

≥8

≥160N/mm2

≥110N/mm2

8%

Chemical Compositions

Si

Fe

Cu

Mn

Mg

Zn

Cr

Ti

0.2-0.6

0.45-0.9

≤0.35

≤0.1

≤0.1

≤0.1

≤0.1

≤0.1

 

Anodizing national standard

Trade Mark and State

6063 T5

Standard No.

GB5237.2-2008

The quality of the base material

Should accord with the GB5237.1-2008 regulations

The allowable deviation of the dimensionss

Should accord with the GBGB5237.1-2008 regulation

The mechanical properties

Should accord with the GB5237.1-2008 regulations

The chemical compositions

Should accord with the GB5237.1-2008 regulations

Oxide Film Quality

Film rating

Average film thickness

Minimum local film thickness

CASS test

Alkaline dropping corrosion resistance test(Sealed hole)

Abrasion coefficient of sand trial

Appearance quality

AA10grade

≥10μm

≥8μm

≥9grade

≤30mg/dm2

≥300g/μm

1.A surface is not allowed to have such defects as slight burns, coming off of oxide film, etc., which influence the use.
2.Within 8 m from an end of the sectional material, it is allowed to have no film locally and electric burns

AA15grade

≥15μm

≥12μm

≥9grade

≤30mg/dm2

≥300g/μm

 

Electrophoresis national standard

Trade Mark and State

6063 T5

Standard No.

GB5237.3-2008

The quality of the base material

Should accord with the GB5237.1-2008 regulations

The allowable deviation of the dimensionss

Should accord with the GBGB5237.1-2008 regulation

The mechanical properties

Should accord with the GB5237.1-2008 regulations

The chemical compositions

Should accord with the GB5237.1-2008 regulations

Quality of Complex Film

rating

Anode oxide film

Paint film

Complex film

Paint the membrane

Appearance quality

Local film thickness

Local film thickness

Local film thickness

Adhesive force

Hardness

Before applying paint, the appearance quality of the sectional material should accord with the relevant regulations of GB. The finished paint film should be even and neat, and it is not allowed to have such defects as wrinkle , crackles, bubbles, flowing marks, inclusions , sticking and coming off of paint film, etc, which influences the use, but in the 8m range of an end of the electrophoresis sectional material , it is allowed to have no paint film locally.

A

≥9μm

≥12μm

≥21μm

0grade

≥3H

B

≥9μm

≥7μm

≥16μm

0grade

≥3H

S

≥6μm

≥15μm

≥21μm

0grade

≥3H

 

Power coating national standard

Trade Mark and State

6063 T5

Standard No.

GB5237.4-2008

The quality of the base material

Should accord with the GB5237.1-2008 regulations

The allowable deviation of the dimensionss

Should accord with the GBGB5237.1-2008 regulation

The mechanical properties

Should accord with the GB5237.1-2008 regulations

The chemical compositions

Should accord with the GB5237.1-2008 regulations

Coating properties

Coating thickness(μm)

Color and color difference

Indentation hardness (Print resistance)

Adhesive force

Impact resistance

Cup-drawing test

Appearance quality

Minimum local thickness

≥40

The color of the coating should be the same as the standard color that the contract stipulates.

≥80

0grade

The front of the coating, after an impact test, has no phenomenon of fracture and coming off, but it is allowed to have small wrinkles in the perimeter of a concave surface.

After a cup-drawing test with of the indentation depth of 6mm, there should not be the phenomena of splitting and coming off on the coating.

The coating of a decorative surface of the powder-sprayed sectional material should be smooth and even, and it is not allowed to have such defects as flowing marks, swelling bubbles, crackles, sticking, etc, which influence the use. It is allowed to have a slight tangerine peel phenomenon, and the degree that is allowed should be indicated by a guide sample of a material object which both the supplying and demanding sides have agreed on.

 

Chemical Composition of Alloy

Alloy 6063(%) 6063A(%) 6061(%)
Si 0.20-0.60 0.30-0.60 0.40-0.80
Fe 0.35 0.15-0.35 0.70
Cu 0.10 0.10 0.15-0.40
Mn 0.10 0.15 0.15
Mg 0.45-0.90 0.60-0.90 0.80-1.20
Cr 0.10 0.05 0.04-0.35
Zn 0.10 0.15 0.25
Ti 0.10 0.10 0.15
Others(each) 0.05 0.05 0.05
Others(total) 0.15 0.15 0.15
Al Remainder Remainder Remainder

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