Aluminium 1100 is a type of aluminium alloy widely used in various industries globally. Its corrosion-resistant properties, low-density and lightweight nature, high ductility, and conductivity make it versatile for different applications. This article will focus on the aluminium 1100 pipes and their key characteristics, including their composition, physical and mechanical properties, uses, heat treatment, and corrosion resistance.
What is Aluminium 1100 Pipes?
Al 1100 pipes are strong, lightweight, corrosion-resistant, and commonly used in plumbing and insulation applications. They offer excellent ductility, strength, durability, and malleability, making them the perfect choice for various projects.
Aluminium 1100 Pipes Composition
1100 Aluminium pipes are made of pure aluminium, with a minimum aluminium content of 99%. They also contain small amounts of other elements, including silicon, iron, copper, manganese, and zinc. The presence of these impurities enhances the strength, ductility, and formability properties of the pipes.
| Alloy | Fe | Si | Mg | Mn | Cu | Zn | Ti | Cr | Each | AI |
|---|---|---|---|---|---|---|---|---|---|---|
| 1100 (min) | 0.35 | 0.25 | 0.01 | 0.01 | 0.05 | 0.01 | 0.020 | Trace | 0.05 | 99.60% |
| 1100 (max) | 0.50 | 0.35 | 0.03 | 0.05 | 0.20 | 0.05 | 0.030 | Trace | 0.15 | remainder |
Aluminium 1100 Pipes Physical Properties
UNS A91100 pipes have several physical properties that make them a preferred choice. These properties include a low density of 2.71 g/cm^3, a high melting point of 600°C, and a good thermal conductivity of 229W/(mK). The low density of these pipes makes them a lightweight option, ideal for applications that require durability and ease of transportation.
Aluminium 1100 Pipes Mechanical Properties
1100 Al pipes exhibit good strength, ductility, and formability when subjected to mechanical stress. The tensile strength of these pipes ranges between 68,000 and 95,000 psi, while Young’s modulus is between 57 and 70 GPa. The pipes also have good elongation properties, with values of up to 35 per cent before fracture. These favourable mechanical properties make them an excellent material for several applications.
| Alloy | Temper | UTS(Mpa) | % Elongation | |||
| Min | Max | 0.5 mm -0.8 mm | 0.81 mm – 1.30 mm | 1.30 mm – above | ||
| 1100 | O | 75 | 110 | 20 | 25 | 29 |
| H12 | 95 | 130 | 5 | 6 | 7 | |
| H14 | 110 | 145 | 3 | 4 | 5 | |
| H16 | 130 | 165 | 2 | 3 | 4 | |
| H18 | 150 | — | 2 | 2 | 3 | |
Aluminium 1100 Pipes Equivalent
| STANDARD | UNS | WERKSTOFF NR. |
| Aluminium 1100 | A91100 | — |
Aluminium 1100 Pipes Thermal Properties
| Properties | Conditions | ||
|---|---|---|---|
| T (°C) | Treatment | ||
| Thermal Expansion (10 -6/C°) | 23.6 | 25 | |
| Thermal Conductivity (W/m-K) | 218 | 25 | H18 |
Aluminium 1100 Pipes Uses
Aluminium alloy 1100 pipes have diverse uses in different industries worldwide. For example, they are used in the aviation and aerospace industry to manufacture aircraft parts, such as wheels, landing gear, and fuselage frameworks. The automotive industry also uses pipes to manufacture car body structures and other parts. The construction industry uses these pipes to produce windows, doors, roofing, and siding. They are also valuable in the food industry for manufacturing cans due to their high corrosion resistance.
Aluminum 1100 Pipes Heat Treatment
Al alloy 1100 pipes do not respond to heat treatment because they are composed mostly of pure aluminium, which makes them malleable and easy to form. For this reason, they are often cold-worked to increase their strength and hardness.
Aluminium 1100 Pipes Corrosion Resistance
Aluminium 1100 pipes have excellent corrosion resistance due to the high levels of pure aluminium and the presence of other impurities that enhance their ability to resist rust and other forms of corrosion. They also have a natural oxide layer that forms on their surface when exposed to air, providing additional protection.
Conclusion:
In conclusion, aluminium 1100 pipes are an excellent choice for various applications due to their high ductility, low density, and strong corrosion resistance. Their excellent mechanical and physical properties make them a preferred option in different industrial fields worldwide. Understanding the composition and other properties of aluminium 1100 pipes can help users maximize their benefits and improve their performance.
A passionate metal industry expert and blogger. With over 5 years of experience in the field, Palak brings a wealth of knowledge and insight to her writing. Whether discussing the latest trends in the metal industry or sharing tips, she is dedicated to helping others succeed in the metal industry.
