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Fine Silver Rivet
Electrtrical Contacts

Electrical Contacts and Contact Assemblies

Electrical contacts consist of soft, high-conductivity, oxidation-resistant materials used as the makeup of electrical components. They are the materials in a system through which an electrical current flows; such as:

  • Circuit breakers,
  • Relays,
  • Switches,
  • EDM applications

Electrical contacts rivets comes in a variety of sizes.  You can find options both small to extremely large, depending on your voltage requirements and usage.

Electrical Contact Materials

Electrical contacts are typically made from any metal with high electrical conductivity.  However, in applications such as high-power equipment where mechanical wear is expected, a conductive metal may be used.

Common electrical contact materials include:

  • Silver
  • Copper
  • Gold
  • Platinum
  • Palladium
  • Brass

Electrical Contact Material Properties

When choosing the best electrical contact for your application, it is important to keep in mind the six most important properties:

  1. Conductivity
  2. Corrosion Resistance
  3. Hardness
  4. Current Load
  5. Form
  6. Size

Electrical Contact Conductivity

Conductivity refers to the measure of a materials ability to conduct or carry an electric current.  You will see this as a percent of a copper standard (ex: 100% International Annealed Copper Standard or IACS)  Silver, which has the highest conductivity, has an IACS of 105.

Corrosion Resistance

Corrosion resistance of electrical contacts refers to a material’s ability to resist chemical decay.  Any material with little corrosion resistance will decay faster than ones with high resistance.

Hardness

This measures how resistant materials are to various kinds of permanent deformations from an applied force.  It is dependant on five factors:

  1. Ductility
  2. Elasticity
  3. Plasticity
  4. Tensile Strength
  5. Toughness

Current Load

This property refers to the maximum recommended current load that the material is capable of handling.

Form

As the name suggests, it refers to the shape an electrical material must fit in order to carry out its operation.

Size

The size relates to the thickness, length, and width or outer diameter of the form a material takes.

Norstan, Premier Electrical Contact Manufacturer

Norstan uses a variety of precious metal and metal alloys for our cold formed parts and electrical contacts.  Our team works with each and every customer to sure that you’re kept in the loop on project status, schedule and deliverables are clearly defined, and all your technical and business requirements are met.

The cold heading and cold forming process have numerous advantages :

  • low manufacturing cost
  • part-to-part consistency
  • efficient material usage
  • good surface quality
  • capable of achieving 3 CPK and greater.

Precision electrical contacts and rivets from silver, gold, palladium, copper, brass, and many other materials – with less waste than screw machined parts.

  • Bimetallic machine composite contacts and rivets manufactured from precious metals and OFHC copper reduces the electrical contact cost.
  • Electrical contact assemblies include contact rivets, contact tape, brazed contact or welded contacts.

Contact us today to learn how we can help your electrical contact assembles!

Our Promise

100% Customer Satisfaction

Every customer is an "A" customer... Always! We are committed to eliminate errors at every stage of the product design, development and manufacturing process. 

Innovation

Continuously seek new technologies and new ways to improve processes. Our team members are rewarded for innovative ideas. 

Knowledgeable and Responsive Team

Our team of members love working at Norstan. Most of our team has worked at Norstan for 15+ years. 

Continuous Waste Reduction

We are proud of our environment-conscious manufacturing practices, energy usage and waste reduction.

3 Things You Should Know About Us

Continually focused on reducing our customers’ costs

At the core, our strategic planning process is centered around cost effectively setting priorities and allocating manpower, budgets, and all resources.

Committed to exceeding our customers’ expectations, and quality control

To meet customer requirements and continuously improve

From our customers’ perspective, we continually audit and review all our processes to continually improve, and manage/mitigate risks.

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We care about our environment

Dedicated to minimizing our environmental impact and footprint. We are proud of our environment-conscious manufacturing practices, energy usage and waste reduction. We are conflict mineral and RoHs compliant.

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Platinum Palladium Gold Silver

"Fast Fact"

What's a Metallurgist?

Ask Hugo

Hugo Francisco

President of Norstan and our in-house Metallurgist

30+ years expert engineer with a degree in Metallurgy

Wondering how to choose the proper metal for your application?

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