Tungsten Contact Rivets | High-Performance Electrical Contacts for Horn and Relay
Here, tungsten rivets refer to composite rivets made by welding tungsten tips with iron or copper base rivets. They usually involve nickel plating, but it is also possible to choose not to electroplate or to electroplate other materials.
Tungsten tip categories
Depending on the application and quality requirements, tungsten sheets have the following two options.
| Powder metallurgy tip | Forged cutting tip | |
| Technology | By pressing tungsten powder in a mold. | By cutting a forged tungsten rod |
| Tungsten content | ≥97％ | ≥99.95％ |
| Hardness | Around 400HV | ≥450HV |
| Number of grains | 7000-9000 | 10000-12000 |
| Application | Bicycle or motorcycle horn | Car horn |
The tungsten rivets for these two types of tungsten sheets are indistinguishable in appearance, so customers need to inform us in advance which quality they require. Powder-pressed sheets are cheaper than cut sheets. And the sizes that can be produced by the two processes will also differ.
Common sizes
| Common sizes | |
| Head diameter | 3.5; 4.0mm |
| W tip thickness | 0.6-1.0mm; 0.7-1.0mm |
| Other diameters | 5.0, 6.0，8.0mm，11mm or customize |
Copper-tungsten rivets
In some electrical products with special requirements, the base rivets are copper. Copper-tungsten rivets are produced in relatively small quantities throughout the industry because they are not easy to weld. However, in recent years, to meet customer demand, SHZHJ has gradually supplied multiple batches of copper-tungsten rivets, ranging in size from 3.0 to 12 mm. They are used in relays and contactors.
SHZHJ Process Flow Chart
Tungsten Rivets Production Process
Why choose SHZHJ?
- Numerous sizes available, most without mold fees.
- Factory direct pricing, even better deals for bulk orders.
- Products undergo multiple inspections, quality guaranteed.
- Fast delivery; tungsten iron rivets can be delivered within 10 days.
- SHZHJ quotes according to customer requirements, never using inferior materials or reducing material usage. SHZHJ reminds buyers to be wary of vendors selling powdered flakes as cutting discs.
- Free samples or small-batch custom orders available for testing.
- Experienced professionals can reduce upfront investment time and costs for customers.
In conclusion, SHZHJ is a technically skilled, trustworthy, and responsible supplier, and we warmly welcome inquiries about any of our tungsten contacts to info@shzhj.com
