A3003 H14 jacketing aluminium coil
In the realm of industrial aluminum products, the A3003 H14 jacketing aluminum coil stands as a versatile material famous for its robustness, excellent corrosion resistance, and workability.
the A3003 H14 Jacketing Aluminum Coil
The A3003 alloy is primarily recognized as a commercially pure aluminum base mixed with manganese—a strength-enhancing alloying element. The addition of roughly 1.0-1.5% manganese results in improved mechanical properties while maintaining excellent corrosion resistance. The designation H14 defines the temper of the aluminum coil, indicating it has been strain-hardened to a degree and straightened but without thermal treatment. More specifically, the H14 temper signifies a half-hard hardness, striking a balanced combination of strength and flexibility.
The term “jacketing” refers to coils used for covering or casing pipes, tanks, HVAC ducts, and vessels, typically requiring good environmental resistance and mechanical protection. The A3003 H14 jacketing aluminum coil offers unique properties tailored for such protective or lining purposes.
Functions of A3003 H14 Aluminum Coil
1. Protective Jacketing
As an aluminum jacketing coil, A3003 H14 forms protective outer layers for equipment susceptible to environmental influences. The alloy’s corrosion resistance largely extends the service life of pipes and tanks used outdoors or exposed to moisture and atmospheric agents.
2. Thermal Reflectivity & Heat Regulation
Near 100% reflectivity for infrared rays improves temperature regulation in applications like pharmaceutical or chemical processing plants. Covering containers or ducts reduces heat absorption and helps maintain controlled internal temperatures, improving operational efficiency.
3. Mechanical Protection
Despite no heat treatment tempering boost, the half-hard H14 coil features sufficient tensile strength and moderate hardness. This provides resistance to physical contributions such as abrasion, minor impacts, or deformation during handling — especially critical for outdoor jacketing jobs.
4. Fabrication Flexibility
The coil offers high workability without compromising material integrity, essential for processes including curving, rolling, and clinching during installation.
Chemical Composition and Material Specifications
A typical A3003 aluminum alloy chemical composition is as follows (in weight %):
| Element | Chemical Composition (%) |
|---|---|
| Aluminum (Al) | Balance |
| Manganese (Mn) | 1.0 – 1.5 |
| Copper (Cu) | ≤ 0.10 |
| Iron (Fe) | ≤ 0.70 |
| Silicon (Si) | ≤ 0.60 |
| Zinc (Zn) | ≤ 0.10 |
| Titanium (Ti) | ≤ 0.15 |
| Others | ≤ 0.05 |
Mechanical Properties & Temper Information (H14)
| Property | Typical Value |
|---|---|
| Tensile Strength | 170 - 215 MPa |
| Yield Strength | Around 140 MPa |
| Elongation | ~8 - 12% |
| Hardness (Brinell) | ~45 HB |
| Temper Designation | H14 — Half Hard |
The strain hardening applied in H14 temper enhances strength without significantly reducing ductility, facilitating improved resistance in industrial jacketing.
International Standards and Quality Guidance
The A3003 H14 jacketing aluminum coil manufacturing typically conforms to:
- ASTM B209 — Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate.
- AA (Aluminum Association) Standards specific to 3000-series alloys.
- ISO 6361 - Wrought Aluminum and Aluminum Alloy Sheets, Strips and Plates.
Following these standards ensures consistent thickness, gauge tolerances, and mechanical properties aligning with production requirements worldwide.
Common Applications of A3003 H14 Aluminum Coil
Pipe Jacketing: Insulation sheathing for heating, ventilation, and air conditioning (HVAC) systems ensuring thermal protection and mechanical resistivity.
Chemical & Pharmaceutical Equipment: Casing of tanks and vessels where chemical resistance and cleanliness are paramount.
Roofing and Cladding: Due to corrosion resistance and lightweight nature, used as architectural sheets and exterior scaffolding wraps.
Food and Beverage Industry Machines: Covers and protective jackets in conveyors and processing equipment due to non-toxic aluminum properties.
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