What Are Some of The Small Details in People's Lives That Are Actually Made of Coloured Aluminium?

Coloured aluminium (coloured aluminium alloy) has quietly integrated into various aspects of our lives thanks to its lightweight, strong corrosion resistance and diverse colours. Many small items we encounter daily yet rarely notice actually incorporate it — from the precision components of electronic devices to the decorative details of home furnishings. These ‘invisible’ applications of coloured aluminium not only enhance product functionality but also optimise our living experience through colour and texture. The following easily overlooked details all rely on the contribution of coloured aluminium:

1. The ‘invisible guardians’ in electronic devices

Mobile phone SIM card trays

Almost all smartphone SIM card trays are made of coloured aluminium. For example, the card slot on OPPO phones is explicitly labelled as aluminium alloy, while the dual SIM card tray on the Apple iPhone 15 series offers multiple aluminium metal colour options such as pink, yellow, and green. This design not only reduces the device's weight (each card tray weighs approximately 0.5g) but also achieves waterproofing and scratch resistance through anodising, ensuring durability even with frequent insertion and removal.

Laptop hinges and cooling components

The ErgoLift hinge of the ASUS ZenBook 360 is forged from high-strength aluminium alloy and remains smooth after 20,000 opening and closing tests. The heat sink of the Huawei MateBook Fold is also made of aluminium alloy CNC machining and undergoes blackening treatment to enhance its oxidation resistance. These components hidden within the device's body not only ensure structural strength but also achieve design consistency through colour matching.

II. The ‘Colour Magician’ in Home Scenarios

Furniture Handles and Decorative Strips

Aluminium alloy door and window handles (such as the 38/50-type coloured aluminium 7-shaped handles) are anodised to achieve colours like silver, gold, and black, with a single-point lock design balancing functionality and aesthetics. Drawer handles and cabinet frames in all-aluminium furniture also commonly use coloured aluminium, which reduces cabinet weight and avoids the rusting issues of traditional metal handles.

Curtain tracks and clothes racks

Curtain tracks typically use 1mm-thick coloured aluminium profiles. For example, Roman tracks in Chinese country style use smooth white aluminium alloy, offering strong load-bearing capacity and excellent sound insulation. Clothes rack extension poles and hooks also favour coloured aluminium. For example, the dual-track curtain tracks available on the Alibaba platform offer elegant white, cherry blossom pink, and other colour options to match various interior design styles.

III. The ‘Lightweight Champion’ in Travel Gear

Automotive Interior Trim Components

Components such as gearshift button frames and air conditioning vent trim strips often use coloured aluminium. For example, the gearshift frame of the Odyssey Hybrid uses aluminium alloy material, custom-designed to fit the original vehicle, offering scratch resistance, durability, and enhanced interior aesthetics. Some high-end models also use coloured aluminium for multimedia knob covers, featuring translucent designs that complement the vehicle's ambient lighting.

Bicycle Accessories

Components such as handlebar stems and chain guards on mountain bikes often use colourful aluminium alloy. For example, the 31.8mm handlebar stem from TANKE offers six colours including yellow, red, and blue, weighing only around 70g, balancing strength with personalised design. This material is also used in bicycle racks and brake calipers, further reducing the overall vehicle weight.

4. The ‘corrosion-resistant pioneer’ in bathroom spaces

Bathroom cabinet handles and faucets

Pinjia Bathroom's bathroom cabinet handles are made of space aluminium (i.e., coloured aluminium), achieving colours like rose red and champagne gold through anodising, with a surface hardness exceeding 300HV, capable of withstanding moisture corrosion in bathroom environments. The matching faucets also use coloured aerospace aluminium, avoiding the issue of traditional chrome-plated parts oxidising and turning black.

Showerheads and Towel Racks

Coloured aerospace aluminium showerhead sets (such as Pinjia Bathroom's pressure-boosting water-saving model) undergo multi-layer oxide film treatment, with salt spray test resistance exceeding 100 hours. Towel racks and bath towel rods also commonly use coloured aluminium, such as the curved-design bathroom hardware, which saves space while complementing the tile colours.

5. Other ‘subtle yet important’ applications

Appliance trim strips: Components like refrigerator door seals and air conditioner vent frames often use coloured aluminium instead of plastic, enhancing both aesthetics and resistance to ageing.

Electronic product heat sinks: The heat sinks of the Huawei MateBook Fold are made of aluminium alloy through CNC machining, with blackening treatment to improve heat dissipation efficiency, while also matching the internal metal frame of the device.

Stationery and tools: Some high-end ballpoint pens use coloured aluminium for pen clips, and craft knives use it for handles, with a sandblasting process to achieve a matte finish, providing both anti-slip and wear-resistant properties.