Copper-Nickel-Tin Strip (GMX96/GMX215)
GMX96/GMX215 is widely used as contact springs in various applications. NGK offers GMX96/GMX215 in several tempers to cover various requirements. GMX96/GMX215 is available in forms of plate and strip.
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Regarding antimicrobial and antiviral metal materials (Cu-Ni-Sn Alloy).
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Overview
The Cu-Ni-Sn Alloy "GMX96" and "GMX215" are Cu alloys that have Ni and Sn added to them. The trace metal action of Cu ions released from the main component, Cu, helps inhibit the growth of bacteria and viruses that adhere to the surface, and also has the effect of reducing their presence.
Features
- It exhibits excellent antibacterial effect*1 and antiviral effect*2 through Cu ions*3.
- It possesses high strength comparable to stainless steel and flexible workability for processes such as pressing and welding.
- There are two types of materials GMX96 and GMX215. GMX96 has a warm, light copper color and GMX215 has a modern and sophisticated silver-white color. It can also be applied to design products.
- It has superior resistance to discoloration compared to pure copper and brass, maintaining a beautiful appearance for a long period of time.
*1: The effect of inhibiting the growth of bacteria adhered to the surface and reducing their presence.
*2: The effect of inhibiting the growth of viruses adhered to the surface and reducing their presence.
*3: It has not been confirmed that the product is effective against all bacteria and viruses.
Field and Applications
It can be widely used in various applications where antibacterial and antiviral properties are required, such as public facilities, welfare facilities, restaurants, and residential appliances.
Examples
- Doorknobs
- Handrails
- Faucets
- Toilet supplies
- Assistive devices for welfare such as wheelchairs
- Various household items in close contact with the body
Antibacterial Performance
GMX exhibits high antibacterial effectiveness. The graph below shows the number of bacteria (type A) adhering to the GMX and stainless plate surfaces (150×150 mm) over time.
Even after 200 minutes, stainless still retains a significant amount of bacteria. However, GMX achieved results where the majority of bacteria were below the detection limit after 50 minutes.
Evaluation Results (Example)
Comparison of the number of bacteria over time between GMX and stainless.
Evaluation results by Professor Intetsu Kobayashi from the Department of Nursing, Infection Control Laboratory, Toho University.
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