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Material for processing

Mark / status

　6063　T5

Standard No.

　GB/T5237. 1-2000

External quality(EQ)

The surface must be clean and tidy.No flaws like crack, peeling, corrosion or bubble are accepted.

No slight indentation, damage or scratch is allowed to be on the surface. The acceptable depth on the decorative side must be less than 0.003mm and the other sides less than 0.07mm. The trace left by the mold cannot be larger than 0.03mm.

Partial distortion caused by saw cutting at both ends is acceptable but the longitudinal length must be shorter than 20mm.

Offset allowed
precision

Plane gap	curvature	Twisting	angel	length
≤0.15mm at a 25mm in width	≤0.3mm at a 300mm in length	≤0.017mm for each meter in length	±1°	When nominal L ≤6, plus 15mm

Mechanical property

Webser hardness	Tensile strength	Yield strength	elongation
≥8	≥160N/mm	≥110N/mm	8%

Chemical component

Si	Mg	Fe	Cu	Mn	Zn	Cr	Ti
0.2-0.6	0.45-0.9	≤0.35	≤0.1	≤0.1	≤0.1	≤0.1	≤0.1

Anodic oxidation, colored profiles

Mark and status

　6063　T5

Standard No.

　GB/T5237. 2-2000

Quality of pre-process material

　GB/T5237. 1-2000 specifications should be satisfied.

offset allowed

GB/T5237. 1-2000 specifications should be satisfied.

Mechanical property

GB/T5237. 1-2000 specifications should be satisfied.

Chemical component

GB/T5237. 1-2000 specifications should be satisfied.

Oxide film quality

average
Film thickness

min
Local thickness

CASS
testing

Drops of alkali
testing

Shakeout test
Wear rate

Hole sealing

Surface quality

≤30mg/dm

No electric burns, oxidized wax falling off and other defects on the surface that will affect the use are allowed.

Partially no wax and electric burn within 80mm to the end of the profiles are allowed.

Grade AA10

≥10um

≥8um

≥Grade 9

≥50S

≥300g/um

Grade AA15

≥15um

≥12um

≥Grade 9

≥70S

≥300g/um

Electrophoresis coating profiles

Mark and status

　6063　T5

Standard No.

　GB/T5237. 3-2000

Quality of pre-process material

Comply with GB/T5237. 1-2000

Offset allowed

Comply with GB/T5237. 1-2000.

Mechanical property

GB/T5237. 1-2000 specification has to be satisfied when the film is removed.

Chemical component

GB/T5237. 1-2000 specification has to be satisfied when the film is removed.

Complex film quality

grade

Anode oxide film

Paint film

Complex film

Paint film

Hole sealing

Surface quality

The surface quality of the profiles must meet GB/T5237.2 specification before painting.

The finished film must be viewed well-distributed and tidy. And wrinkles, cracks, bubbles, rill marks, impurities, tacky, film shedding and other defects that may affect the use are not permitted.But being partially lack of Zhen film within 80mm area to the end of the electrophoresis profiles is OK.

Average film thickness

Local film thickness

Adhesive force

hardness

≥10um

≥8um

≥12um

≥21um

Grade 0

≥2H

≥15um

≥12um

≥Grade 9

≥70S

Grade 0

≥2H

Powder coating profiles

Mark and status

　6063　T5

Standard No.

　GB/T5237. 4-2000

Quality of pre-process materials

GB/T5237. 1-2000 specification should be satisfied.

Offset allowed

GB/T5237. 1-2000 specification has to be satisfied after the coating removal.

Mechanical property

GB/T5237. 1-2000 specification has to be satisfied after the coating removal.

Chemical component

GB/T5237. 1-2000 specification has to be satisfied after the coating removal.

Property of coating

Coating thickness			color chromatic aberration	Indentation hardness	Adhesive force	Shock resistance	Cupping test	Surface quality
Average thickness	max Local thickness	min Local thickness
≥60	≤120	≥40	The coating color should go closely together with the color chart regulated in the contract.	≥80	Grade 0	After the shock resistance test, cracking and shedding on the right side shall not be seen, while tiny wrinkles around the concave are acceptable	No cracking and shedding appear on the coating surface since the cupping test is conducted with 6mm indentation concentration	The coating on the decorative surface of the powder spraying profiles must be smooth and well distributed. There shall not be any wrinkle, rill mark, bubble, cracking or clamminess, flaws that will affect the use of them. Tiny orange-skin-alike defect is acceptable while the degree of acceptance must follow the description on the sample agreed by both the supplier and the purchaser.

Foshan Nanhai Dali Hecheng Huamei Copper and Aluminum Co.Ltd.

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