1100 H18 aluminum alloy is a specific temper based on 1100 aluminum alloy, which belongs to the high-purity aluminum alloy series. The aluminum content in 1100 aluminum alloy is usually over 99%, so it has good corrosion resistance and electrical conductivity.
H18 indicates that the aluminum alloy has undergone "hardening" treatment, primarily through strain hardening to improve the material's strength, resulting in higher hardness and strength. H18 is the strongest temper of 1100 aluminum alloy, typically used in applications that require higher strength but less ductility.
The main component of 1100 aluminum alloy is aluminum, with an aluminum content usually exceeding 99%. It also contains small amounts of copper, iron, silicon, manganese, magnesium, and other elements.
| Weight% | Al | Cu | Si + Fe | Mn | Zn | Others |
| 1100 | Rem | 0.05 - 0.020 | 0.95 max | 0.05 max | 0.10 max | 0.05 (each) 0.15 (total) |
| Material | Temper | Tensile Strength ksi | Yield Strength (ksi min) | Elongation % in 2"0.064" Sheet | Min 90° Cold Bend Radius for .064 " Thick |
| 1100 | 1100-0 | 11-15.5 | 3.5 | 30 | 0 |
| 1100 | 1100-H12 | 14-19 | 11 | 8 | 0 |
| 1100 | 1100-H14 | 16-21 | 14 | 5 | 0 |
| 1100 | 1100-H16 | 19-24 | 17 | 4 | 0.1T |
| 1100 | 1100-H18 | 22 (min) | - | 4 | 1-2T |
| Application | Description |
| Construction Industry | In the construction industry, 1100-H18 aluminum sheet is commonly used for roofing, wall panels, exterior cladding, and other building materials. Its excellent corrosion resistance and high strength make it particularly suitable for humid or marine climates. This aluminum sheet can resist salt spray and moisture corrosion, thus effectively extending the lifespan of exterior materials in coastal areas and high-humidity environments while maintaining their aesthetics and functionality. |
| Transportation | In the transportation industry, 1100-H18 aluminum sheet is widely used in sectors such as aviation, automotive, and rail transportation to make body panels, structural components, decorative panels, and more. Its high strength and excellent corrosion resistance make it an ideal material choice, especially when weight reduction is required. It provides structural stability and enhances durability. This type of aluminum sheet is also commonly used to make parts that need to withstand harsh weather conditions and high-pressure environments. |
| Electrical Industry | Due to the good electrical conductivity of 1100-H18 aluminum sheet, it is widely used in the electrical industry for electrical fittings, conductive strips, terminal blocks, and wiring connectors. Its high-purity aluminum composition ensures good electrical conductivity, effectively supporting the stable operation of electrical systems, especially in situations requiring low resistance and long-term stability. |
| PCB Aluminum Sheet 1100-H18 | The 1100-H18 aluminum sheet is primarily used as a substrate for PCBs (printed circuit boards) in the electronics industry. Its high strength and good thermal conductivity make it an ideal choice for heat dissipation management. The hardness and strength of the aluminum sheet help provide stable support and protection while enhancing the heat dissipation of electronic components. |
| 1100 H18 Aluminum Sheet for Making Ceiling Fan Blades | The 1100 H18 aluminum sheet, with its high strength and rigidity, is highly suitable for making ceiling fan blades. The strength of the aluminum sheet ensures stability and durability of the fan blades during operation, while its lightweight properties help improve the efficiency and performance of the fan. |
| Industrial Equipment | In the manufacturing of industrial equipment, 1100-H18 aluminum sheet is used to make high-strength mechanical components, such as enclosures, frames, support structures, and more. Its excellent strength and corrosion resistance make it suitable for long-term use in harsh environments, such as protective structures for heavy machinery and equipment, as well as components that require wear resistance. |
| Chemical and Food Industries | Due to its excellent corrosion resistance and non-toxicity, 1100-H18 aluminum sheet is widely used in the chemical and food industries. It is used to make chemical equipment, storage tanks, pipelines, and food packaging containers, especially in applications that require long-term contact with chemicals or food. The corrosion resistance of this aluminum sheet ensures its durability in chemical environments, and it also meets food safety requirements. |
| Containers and Storage Tanks | In the production of containers and storage tanks, 1100-H18 aluminum sheet is an ideal material choice. It not only meets the strength requirements but also provides good corrosion resistance and hygiene safety. These properties make it widely used in containers for storing chemicals, food, and other liquid substances. The lightweight and strength of aluminum help make the containers more stable and able to withstand environmental challenges during long-term use. |
Forming and Machining
1100-H18 aluminum alloy has good machinability and can be processed using conventional machining methods such as stamping, shearing, laser cutting, milling, etc. However, due to the hardness of the H18 temper, special attention should be paid to tool selection and cutting parameters during processing.
Weldability
1100-H18 aluminum alloy has good weldability, but due to its lower ductility, special care should be taken during welding to avoid cracking.
Surface Treatment
It can undergo anodizing treatment to enhance corrosion resistance and improve surface aesthetics, commonly used for decoration and protection.
Poor Ductility
Although 1100-H18 aluminum alloy has high strength, its ductility is poor. Therefore, during processing, excessive stretching or bending should be avoided to prevent material cracking.
Strain Hardening
The H18 temper aluminum alloy has already undergone strain hardening, and any further processing may cause changes in its hardness and strength. Therefore, this factor should be considered during processing.
1100-H18 aluminum sheet is a high-strength, corrosion-resistant material suitable for applications requiring higher strength. It is widely used in construction, transportation, electrical, and industrial fields. However, due to its lower ductility and machining difficulty, it is more suitable for applications that do not require complex forming.
The main differences between 1100 H14 and 1100-H18 aluminum grades lie in their mechanical properties, processing methods, and resulting performance.
| Feature | 1100-H14 Aluminum | 1100-H18 Aluminum |
| Temper | Strain-hardened temper. Partially hardened through cold working but not fully hardened. | Fully hardened temper. Subjected to a higher level of strain hardening. |
| Hardness | Medium hardness, between fully annealed (O temper) and fully hardened (H18). | Higher hardness, stronger strength, but reduced formability. |
| Strength | Moderate tensile strength, suitable for applications requiring good formability and moderate strength. | High tensile strength, more suitable for applications requiring higher strength. |
| Ductility | Good ductility, easy to form and process. | Lower ductility, increased hardness reduces flexibility, more prone to cracking. |
| Formability | Excellent formability, suitable for bending, stamping, and deep drawing processes. | Reduced formability, more challenging to process. |
| Common Uses | Automotive interiors, building panels, kitchenware, and consumer products requiring a balance of strength and ease of processing. | Structural components, heavy-duty applications, and other situations requiring higher strength. |
| Description | Temper | Thickness(In) | Width(In) | Length(In) |
| 0.05" Aluminum Sheet 1100-H18 2 × 24 | H18 | 0.05" | 2" | 24" |
| 0.063" Aluminum Sheet 1100-H18 2 × 24 | H18 | 0.063" | 2" | 24" |
| 0.08" Aluminum Sheet 1100-H18 2 × 24 | H18 | 0.08" | 2" | 24" |
| 0.063" Aluminum Sheet 1100-H18 4 × 24 | H18 | 0.063" | 4" | 24" |
| 0.08" Aluminum Sheet 1100-H18 4 × 24 | H18 | 0.08" | 4" | 24" |
| 0.09" Aluminum Sheet 1100-H18 4 × 24 | H18 | 0.09" | 4" | 24" |
| 0.08" Aluminum Sheet 1100-H18 6 × 6 | H18 | 0.08" | 6" | 6" |
| 0.09" Aluminum Sheet 1100-H18 6 × 6 | H18 | 0.09" | 6" | 6" |
| 0.125" Aluminum Sheet 1100-H18 6 × 6 | H18 | 0.125" | 6" | 6" |
| 0.09" Aluminum Sheet 1100-H18 6 × 12 | H18 | 0.09" | 6" | 12" |
| 0.125" Aluminum Sheet 1100-H18 6 × 12 | H18 | 0.125" | 6" | 12" |
| 0.02" Aluminum Sheet 1100-H18 6 × 24 | H18 | 0.02" | 6" | 24" |
| 0.125" Aluminum Sheet 1100-H18 6 × 24 | H18 | 0.125" | 6" | 24" |
| 0.02" Aluminum Sheet 1100-H18 12 × 12 | H18 | 0.02" | 12" | 12" |
| 0.032" Aluminum Sheet 1100-H18 12 × 12 | H18 | 0.032" | 12" | 12" |
| 0.02" Aluminum Sheet 1100-H18 12 × 24 | H18 | 0.02" | 12" | 24" |
| 0.032" Aluminum Sheet 1100-H18 12 × 24 | H18 | 0.032" | 12" | 24" |
| 0.04" Aluminum Sheet 1100-H18 12 × 24 | H18 | 0.04" | 12" | 24" |
| 0.032" Aluminum Sheet 1100-H18 24 × 24 | H18 | 0.032" | 24" | 24" |
| 0.04" Aluminum Sheet 1100-H18 24 × 24 | H18 | 0.04" | 24" | 24" |
| 0.05" Aluminum Sheet 1100-H18 24 × 24 | H18 | 0.05" | 24" | 24" |
| 0.04" Aluminum Sheet 1100-H18 24 × 48 | H18 | 0.04" | 24" | 48" |
| 0.05" Aluminum Sheet 1100-H18 24 × 48 | H18 | 0.05" | 24" | 48" |
| 0.063" Aluminum Sheet 1100-H18 24 × 48 | H18 | 0.063" | 24" | 48" |
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