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Aluminum Strip is classified based on alloy series, processing temper, and application scenarios, each with distinct characteristics to meet specific usage requirements. The key classifications are summarized in the table below:
| Classification Criterion | Category | Key Features | Typical Applications |
|---|---|---|---|
| Alloy Series | 1000 Series (Pure Aluminum Strip) | Aluminum ≥ 99.0%, high conductivity, good corrosion resistance | Heat sinks, electrical conductors, food packaging edges |
| 3000 Series (Al-Mn Alloy Strip) | Manganese 1.0%–1.5%, balanced strength and formability | Cookware edges, decorative strips, automotive trim | |
| 5000 Series (Al-Mg Alloy Strip) | Magnesium 1.0%–5.0%, high strength, excellent corrosion resistance | Marine components, structural brackets, pressure vessel parts | |
| 6000 Series (Al-Mg-Si Alloy Strip) | Heat-treatable, high strength after aging | Automotive structural parts, architectural profiles, hardware | |
| Processing Temper | O State (Annealed) | High ductility, easy to bend and stamp | Complex forming parts, decorative components |
| H14 State (Semi-Hard) | Moderate strength and ductility | General structural parts, packaging clips | |
| T6 State (Heat-Treated) | High strength, good rigidity | Automotive load-bearing parts, industrial brackets |
Aluminum Strip has strict dimensional control to ensure processing accuracy, and its mechanical properties vary with alloy and temper. Typical specifications and performance data are shown below:
| Alloy & Temper | Thickness Range (mm) | Width Range (mm) | Tensile Strength (MPa) | Elongation (%) |
|---|---|---|---|---|
| 1060-O | 0.1–6.0 | 5–200 | 75–105 | ≥ 25 |
| 3003-H14 | 0.2–8.0 | 10–300 | 130–180 | ≥ 5 |
| 5052-H32 | 0.3–10.0 | 15–400 | 170–210 | ≥ 10 |
| 6061-T6 | 0.5–12.0 | 20–500 | 310–380 | ≥ 8 |
Quality Indicators
Dimensional accuracy (tested by calipers and width gauges), surface quality (no scratches, burrs, or oxidation), and mechanical properties (batch sampling for tensile and elongation tests).
Storage Guidelines
Store in a dry, well-ventilated warehouse to prevent oxidation; place on flat supports to avoid bending; separate different alloys and tempers to prevent confusion; cover with dustproof cloth to avoid contamination.
Q What is the difference between 1000 series and 6000 series aluminum strip?
The 1000 series (pure aluminum) offers high electrical and thermal conductivity with good corrosion resistance, making it ideal for electrical and food packaging applications. The 6000 series (Al-Mg-Si) is heat-treatable and achieves significantly higher strength after aging treatment, making it suitable for structural automotive and architectural applications where load-bearing capacity is required.
Q What thickness and width tolerances can aluminum strip be manufactured to?
Using high-precision slitting equipment, aluminum strip can be manufactured with a thickness tolerance of ±0.02mm and a width tolerance of ±0.1mm. These tight tolerances ensure dimensional consistency across large production batches.
Q Which aluminum strip alloy is best suited for marine or outdoor environments?
The 5000 series (Al-Mg alloy) is the most suitable choice for marine and outdoor environments. With a magnesium content of 1.0%–5.0%, it provides excellent corrosion resistance against saltwater and atmospheric exposure, making it widely used in marine components, structural brackets, and pressure vessel parts.
Q What surface treatments can be applied to aluminum strip?
Aluminum strip is compatible with a variety of surface treatments including anodizing (which enhances corrosion resistance and provides decorative finishes), powder coating (for color and protection), and brushing or polishing. These treatments expand its applicability in construction, automotive, and decorative industries.
Q How should aluminum strip be stored to prevent quality degradation?
Aluminum strip should be stored in a dry, well-ventilated warehouse to prevent oxidation and moisture damage. It should be placed on flat supports to avoid bending or deformation. Different alloys and tempers must be stored separately to prevent confusion, and the material should be covered with a dustproof cloth to protect the surface from contamination.
Q Is aluminum strip safe for food packaging applications?
Yes, aluminum strip — particularly from the 1000 and 3000 series — is widely used in food packaging applications such as can body strips, bottle cap sealing strips, and packaging box edge strips. These alloys meet food safety standards due to their non-toxic nature, good formability, and resistance to corrosion from food contact.
