PRODUCT QUALITY STANDARD
Chemical Components of Aluminium Alloy Profile
| Alloy grade | Si | Mg | Fe | Cu | Mn | Zn | Cr | Ti | Other impurities | Al | |
| Single | Total | ||||||||||
| 6061 | 0.40-0.80 | 0.8-1.2 | 0.15-0.40 | 0.04-0.35 | Allowance | ||||||
| 6063 | 0.20-0.60 | 0.45-0.9 | Allowance | ||||||||
| 6063A | 0.30-0.60 | 0.6-0.9 | 0.15-0.35 | Allowance | |||||||
Mechanical Properties of Aluminium Alloy Profile at Room Temperature
| Alloy grade | Status | Longitudinal tensile test results at room temperature | Hardness | ||||
| Tensile strength(N/mm2) | Specified non-proportional extension strength(N/mm2) | Elongation after break(%) | Thickness of test sample(mm) | Vickers hardness(HV) | Webster hardness(HW) | ||
| 6061 | T4 | ≥180 | ≥110 | ≥16 | - | - | - |
| T6 | ≥265 | ≥245 | ≥8 | - | - | - | |
| 6063 | T5 | ≥160 | ≥110 | ≥8 | ≥0.8 | ≥58 | ≥8 |
| T6 | ≥205 | ≥180 | ≥8 | - | - | - | |
| 6063A | T5 | ≥200 | ≥160 | ≥5 | ≥0.8 | ≥65 | ≥10 |
| T6 | ≥230 | ≥190 | ≥5 | ||||
Surface Film Standard for Anodized Aluminium Alloy Profile
| Grade of film thickness | Average film thickness(μm) | Local film thickness(μm) | Sealing quality(mg/dm2) | Wear resistance coefficient(g/μm) |
| AA10 | ≥10 | ≥8 | ≤30 | Drop sand test≥300 |
| AA15 | ≥15 | ≥12 | ||
| AA20 | ≥20 | ≥16 | ||
| AA25 | ≥25 | ≥20 | ||
| Note: The film thickness grade shall be indicated in the purchase order (or contract) and is generally supplied according to AA10 (door and window) or AA15 (curtain wall). | ||||
Surface Film Standard for Electrophoretic Coating Aluminium Alloy Profile
| Grade of film thickness | Local thickness of anodic oxide film(μm) | Local thickness of coating film(μm) | Local thickness of composite film(μm) | Coating film hardness | Wear resistance shakeout amount/g |
| A | ≥9 | ≥12 | ≥21 | Pencil test≥3H | Drop sand test≥3300 |
| B | ≥9 | ≥7 | ≥16 | Drop sand test≥3300 | |
| Note: The film thickness grade shall be indicated in the purchase order (or contract) and is generally supplied according to grade B. | |||||
Surface Film Standard for Fluorocarbon Paint Spraying Aluminium Alloy Profile
| Type of film layer | Average film thickness(μm) | Local film thickness(μm) | Color | Adhesion | Hardness |
| Two coating | ≥30 | ≥25 |
Gloss:±5 Color difference: basically consistent with the confirmed sample of both parties |
Dry type, wet type, boiling water The adhesive force shall reach grade 0 |
Pencil test of coating≥1H |
| three coating | ≥40 | ≥34 | |||
| four coating | ≥65 | ≥55 | |||
| Note: Due to the complexity of the cross-sectional shape of the profile, the local film thickness on certain surfaces of the profile (such as the inside corner, groove, etc.) is allowed to be lower than the specified value in the table, the base exposure is not allowed; for coating of non-decorative surfaces, if required, it shall be listed in the contract or order. | |||||
Surface Film Standard for Power Spraying Aluminium Alloy Profile
| Film thickness(μm) | 60°Gloss value | Adhesion | Color | Indentation hardness | Wear resistance(L/μm) |
| ≥40,Implement in accordance with international standards and produce according to the contract | 3~30±5 |
Dry type, wet type, boiling water The adhesion shall reach Grade 0 |
Basically consistent with the confirmed sample of both parties |
Indentation resistance≥80 | Drop sand test, wear coefficient≥0.8 |
| 31~70±7 | |||||
| 71~100±10 | |||||
| Note: Due to the complexity of the cross-sectional shape of the profile, the film thickness on certain surfaces of the profile (such as the inside corner, groove, etc.) is allowed to be lower than the specified value in the table. For coating of non-decorative surfaces, if required, it shall be listed in the contract or order. | |||||
Mechanical Properties of Aluminium Alloy Profile at Room Temperature
| Test items | Connecting mode | Longitudinal shear characteristic value(N/mm) | Transverse tensile characteristic value(N/mm) |
Average value of deformation of insulation material(mm) |
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| Room temperature | Low temperature | High temperature | Room temperature | Low temperature | High temperature | |||
|
Longitudinal shear/ transverse tensile properties |
Strip inserting type | ≥24 | ≥24 | - | - | - | ||
| Pouring type | ≥24 | ≥24 | - | |||||
|
60 times thermal cycle test at high temperature constant load |
Strip inserting type | - | - | - | - | ≥24 | ≤0.6 | |
| Pouring type | ≥24 | - | - | - | - | - | ≤0.6 | |
