Using precision alloys in communications equipment

Modern communication technologies place high requirements on materials used in producing communication equipment. Temperature swings, the need for high accuracy and operating stability — all this requires special steels and alloys. One of them is precision alloys — metallic materials with extremely exact chemical composition and predictable physical properties. In this article we tell what makes precision alloys unique, where they are used, and which grades are produced at PZPS.

What precision alloys are

Precision alloys are a special class of metallic materials developed and manufactured with high accuracy of composition and properties. Their task is to ensure stable, reliable operation under conditions where even the slightest deviation from the norm can lead to failures or reduced device efficiency.

Main features of precision alloys:

• High composition purity — alloying element content is strictly controlled, and harmful impurities are minimized, because even a slight deviation from the regulated composition can change the alloy’s physical properties.
• Specific properties — precision alloys may have unique magnetic, elastic, and electrical characteristics needed to solve specific tasks.
• Stability in service — these alloys retain properties over a wide range of service conditions, including high temperatures and pressure.

Exactly these qualities make precision alloys indispensable in producing communication components.

Where and how precision alloys are used in communications

Communication devices are not only mobile phones or wireless radio receivers, but also complex data transmission systems, satellite communications, and telecommunications infrastructure. These devices use materials able to work at high frequencies, in compact housings, and at various temperatures.

These are the main application areas of precision alloys in communications:

• Inductor coils and transformers — precision alloys raise equipment accuracy and operating stability and improve signal transmission efficiency.
• Magnetic cores — used in devices where electromagnetic parameters matter, for example in radio-frequency amplifiers and filters.
• High-frequency technology components — resonators, filters, dampers, and other elements in which critically low resistance, minimal losses, and high accuracy matter.

These areas require materials with not merely good but ideal parameters that will not change under various service conditions. That is why in producing switching equipment precision alloys are the most preferred option.

Main types of precision alloys in communication equipment

There are many varieties of precision alloys, each optimal for a specific application. Below we look at the two most popular groups.

Soft magnetic alloys

These materials have high magnetic permeability and low coercive force, so they magnetize and demagnetize easily without losses. Soft magnetic alloys respond quickly to change in magnetic flux lines and retain minimal residual magnetic properties after the external magnetic field is removed. This makes the presented materials ideal for all types of transformers and inductive elements.

Application examples:

• Transformer and inductor cores — using soft magnetic materials makes it possible to efficiently convert and transmit electrical signals.
• High-frequency equipment elements — these alloys are used in making magnetic cores and magnetic circuits to concentrate magnetic flux and improve high-frequency device characteristics.
• Magnetic shields, sensors, and other electronic components — soft magnetic alloys are used in devices requiring high magnetic permeability and low energy loss.

PZPS produces the following soft magnetic alloy grades:

• 49K2FA-VI — an alloy with high magnetic permeability and low losses, excellently suited to compact transformers;
• 27KKh — has low coercive force, used in critical products;
• 50N, 50NP — widely used in radio engineering and telecommunications.
• 79NM, 80NM, 81NMA — nickel–iron alloys with high accuracy of magnetic characteristics, used in microwave devices.

These materials make it possible to raise sensitivity and stability of radio-electronic components.

Alloys with specified thermal expansion coefficient (CTE)

For devices operating under variable temperatures it is important that materials not deform on heating or cooling. Alloys with specified CTE retain dimensions and geometry, preventing stresses and cracks caused by temperature changes.

Examples of using alloys with specified CTE in communications:

• High-precision electronics components — used in producing printed circuit boards, capacitors, and other parts for which it is important to retain geometric parameters under temperature swings, as well as for joining with other materials, for example glass.
• Optical systems — in optical modules and laser systems used in fiber-optic communication lines (FOCL), precision alloys help maintain exact focusing and alignment of components.
• Hermetic housings of electronic modules — used to make housings and connecting elements, ensuring hermeticity of electronic components and their protection from external effects.

Grades produced by PZPS:

• 29NK — a classic material for joining with borosilicate glass, ideally suited to hermetic housings;
• 33NK — well compatible with ceramic elements, used in optical and microwave devices;
• 36N, 42N — provide ultra-low CTE and are used in microassemblies and precision mechanics elements.

Thanks to dimensional stability these alloys ensure high accuracy of component adjustment and alignment, especially in fiber-optic communication lines.

Other precision alloys produced by PZPS

Besides soft magnetic and thermally stable alloys, PZPS also offers other materials sought after in electronics and radio engineering:

• Alloys with specified elastic properties: 40KKhNM — used in sensitive mechanical elements where high elasticity is required;
• 36NKhTYu, 17KhNGT — alloys for precision springs and sensitive mechanisms that retain shape under significant loads.

These materials make it possible to create reliable, durable components resistant to environmental effects. Thanks to strict quality control at all production stages, from melting to rolling, PZPS products meet international standards, have exact chemical composition, and are characterized by stable physical and mechanical properties.

For purchasing cold-rolled strip of precision alloys call +7 812 740–76–57 or leave a request on the website. PZPS specialists will help you choose the needed material and select optimal delivery terms.