Electrical and electronic equipment: Metal materials and processing solutions at Oristar

Oristar materials supply to the electrical and electronic equipment industry

The material list is built according to each usage requirement, from conductive materials to shell materials, chassis, heat sinks and components that need precision machining.

The specific list may vary between the electrical and electronics industries due to the conductivity, accuracy and working conditions requirements of each product.

Aluminum for electrical and electronic equipment

Aluminum is chosen when the product needs to reduce weight, conduct heat, be easy to process, or require shaping and surface treatment. In Oristar's portfolio, A1050, A1100, A5052, A6061 and A7075 are used for different groups of applications in the electrical and electronics industry.

A1050 and A1100 aluminum for heat dissipation and electrical conductivity

A1050 and A1100 belong to the high purity aluminum group, and are of interest in applications that require thermal conductivity, electrical conductivity, and shaping. Some applications of A1050 and A1100 aluminum:

• Heatsink plate
• Heat transfer part
• Lightweight conductive rod
• Cases and details of electronic devices
• Products that need stamping, bending or shaping

A1050 is also used for a number of products in the electrical and electronics industry such as conductive aluminum foil, wires and electrical components.

A5052 aluminum for equipment covers and electrical cabinets

A5052 has good corrosion resistance, suitable strength and good formability. This aluminum grade is suitable for products that need to be bent, stamped or formed into a protective cover. Common applications include:

• Electronic device case
• Control cabinet
• Component protection box
• Device frame and cover
• Equipment for outdoor work

A6061 aluminum for machine frame and machined parts

A6061 has high durability and good mechanical machining ability, suitable for parts that need milling, drilling or CNC machining according to drawings. Materials can be used for:

• Electronic chassis
• Equipment rack
• Mechanical details
• Bearing structure
• Part of the automation system

A7075 aluminum for parts requiring high durability

A7075 is more durable than many common aluminum grades and is used in the group of materials serving the electronics industry. This grade of aluminum can be chosen for mechanical parts that require high durability.

However, material grades and specific specifications still need to be selected according to the design and working conditions of each detail.

Copper for electrical equipment, components and connections

Copper plays an important role in the electrical and electronics industry thanks to its ability to conduct electricity and heat well. Depending on the requirements for conductivity, durability, elasticity, abrasion resistance and machinability, businesses can choose pure copper or alloy copper.

Copper C1100 and C1020 for conductive parts

Thanks to their ability to transmit stable current, C1100 and C1020 are two ideal copper grades for electrical engineering details. Some typical applications:

• Conductor bar
• Busbar
• Conductor
• Power connector
• Electronic components
• Parts need stable power transmission

In actual production, C1100 is widely preferred for busbar systems and power distribution equipment.

C5191 and C5210 for connectors, contacts and elastic parts

C5191 and C5210 are suitable for applications that need to combine electrical conductivity with durability and elasticity. Applications may include:

• Connector
• Extreme end
• Electrical contact
• Contact spring
• Relay contact
• Precision stamping components

C5191 is especially suitable for parts that need to maintain elasticity and work repeatedly for a long time. Oristar also supplies C5191 in rolls for precision parts production and stamping lines.

C2680, C2801 and copper alloys for components

C2680, C2801 and certain other copper alloys may be selected when the product requires formability, machinability or mechanical properties different from pure copper. The selection should be based on:

• Electrical conductivity required
• Durability and hardness
• Ability to stamp and bend
• Size and thickness
• Working conditions of components
• Yield and production method

Steel and stainless steel for the case, bracket and technical details

Not every part of electrical and electronic equipment requires materials with high electrical conductivity. For machine cases, racks, mechanical parts or parts working in environments with moisture and corrosive agents, steel and stainless steel may be a more suitable choice.

Oristar currently has brands such as K340, M333, SUS301, SUS303, SUS304, SUS316 and W360 in the group of materials serving the electrical and electronics industry.

Stainless steel SUS301, SUS303, SUS304 and SUS316

These stainless steel grades are selected depending on the requirements for durability, machinability and corrosion resistance.

• SUS301:Suitable for details that require certain durability and shaping ability
• SUS303:Convenient for details that need to be machined and cut
• SUS304:widely used for equipment housings, racks and parts that need to be corrosion resistant
• SUS316:More suitable when the equipment works in environments with high corrosion resistance requirements

Engineering steel for molds and machined parts

Some electrical and electronic products are produced by stamping methods or require high precision details. At that time, technical steel can be used for molds, tools or mechanical parts for the production process.

K340 and W360 are brands that Oristar includes in the group of materials serving the electrical industry; K340 is also recommended for electronic component dies and parts requiring dimensional stability.

Materials for each part of electrical and electronic equipment

Instead of choosing materials by industry name, businesses should start from the function of the part to be produced. The same device can use many different types of metals.

• Note:The table above is for guidance only. The final material grade should be determined according to the drawing, part function, size, production method and actual working conditions.

Select materials for electrical and electronic equipment according to production requirements

In manufacturing electrical and electronic equipment, there is no single metal line that perfectly meets every position on the same product. Each assembly poses its own physical and mechanical challenges, from energy transfer efficiency, heat dissipation ability to mechanical durability or material costs. Classifying materials based on actual technical requirements is the first step to help businesses optimize design and production operations.

When giving priority to electrical conductivity

C1100 and C1020 copper are suitable choices for busbars, busbars and components that require good electrical conductivity.

If weight reduction is required and the product does not require copper-equivalent conductivity, A1050 aluminum may be considered for some suitable designs.

When weight reduction and heat dissipation are needed

A1050 aluminum is suitable for applications that require heat conductivity and light weight, while A6061 can be chosen when the part needs both heat dissipation ability and must meet durability and mechanical processing requirements.

When durability and precision machining are needed

A6061 and A7075 are more suitable for aluminum parts that require mechanical processing. For small electronic components that need to be stamped and maintain elasticity, C5191 or C5210 can be considered depending on design requirements.

When corrosion protection is required

A5052, SUS304 and SUS316 can be selected depending on the required level of corrosion protection and the working environment.

• Note:Businesses should not choose materials based solely on a single characteristic. Conductivity, durability, machinability, dimensions, material condition and cost all need to be considered simultaneously.

Specifications and material processing for electrical and electronic equipment

Besides the material grade, workpiece specifications directly affect the ability to put materials into production. Oristar offers a variety of materials such as sheets, bars and coils, and supports processing options to suit business requirements. When ordering materials, businesses should determine:

• Material grade
• Product form: sheet, bar, roll or other specifications
• Thickness and size
• Material status
• Tolerance
• Quantity
• Requires cutting or slitting of rolls
• Requires milling or machining according to drawings

For products requiring high precision, technical drawings help suppliers determine the correct materials, workpiece specifications and processing options.

Oristar supports sheet cutting, bar cutting, roll slitting, 4-sided - 6-sided milling and detailed processing according to drawings through partners, depending on the requirements of each order.

Oristar provides materials for electrical and electronic equipment

Oristar supplies aluminum, copper, steel and stainless steel to businesses manufacturing electrical equipment, electronic components, connection equipment and related industrial products.

Besides providing materials, Oristar supports businesses in determining specifications and processing materials as required. For orders that require cutting, sawing, milling or preparing workpieces according to drawings, businesses can provide technical information right from the beginning to choose the appropriate option.

Oristar's typical material list: 

• Aluminum:A1050, A1100, A2017, A5052, A6061, A7075.
• Copper:C1100, C1020, C19025, C19210, C2680, C2801, C5191, C5210, and a number of other copper alloy grades according to each application.
• Steel and stainless steel:K340, M333, SUS301, SUS303, SUS304, SUS316, W360.

The actual catalog is selected according to the industry, application and technical requirements of each product.

If your business is looking for materials for electrical and electronic equipment, please send material labels, specifications, quantities or product drawings to Oristar for support in determining suitable materials and supply options.

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