Tungsten Heavy Metal (WNiFe, WNiCu)

Round, flat, square rods & custom parts

Alloy

SVS

Europe

International

USA

W90NiFe

W90NiCu

W92,5NiFe

W92,5NiCu

W95NiFe

W95NiCu

W97NiFe

WIRBALIT® WS

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ASTM B777-07

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Alloy

W90NiFe

W90NiCu

W92,5NiFe

W92,5NiCu

W95NiFe

W95NiCu

W97NiFe

SVS

WIRBALIT® WS

Europe

-

International

ASTM B777-07

USA

-

High-Density Alloy for Radiation Shielding and Precision Applications

This high-density specialty alloy offers exceptional hardness, strength, and thermal stability. Thanks to its extremely low thermal expansion, it is ideal for high-precision applications in high-temperature environments. Its high absorption of X-ray and gamma radiation makes it a go-to material for radiation shielding.

Excellent concentricity characteristics make this alloy a reliable choice for precision tools used in grinding and drilling at micrometer-level tolerances. Other applications include counterweights and military-grade components.

Products

Products Made from WNiFe/WNiCu

Sketch

Form and Sizes

Sketch

Form

Sizes

Action

  • Round bars

    Ø 1 - Ø 100

  • Flat bars

    3x5 - 100x100

  • Square bars/profiles

    3x3 - 80x80

Custom part needed? Simply upload your technical drawing and receive a quote.

Material Quality Meets Personalized Service

  • Tight manufacturing tolerances and minimal contamination ensure consistent material quality.

  • Automated testing throughout the entire production process ensures consistent product quality.

  • High inventory levels and short response times ensure uninterrupted production processes.

  • Our extensive experience in processing and application helps you select the ideal material.

  • Each material batch is tested and delivered with comprehensive material certification.

  • For critical applications, we offer 100% inspection of individual parts based on your specifications.

Why SVS

SVS supplier of semi-finished copper alloys and refractory metals

Key Features

Advantages of the High-Density Alloy

  • Maximum Density

    Extremely high density of approx. 19.3 g/cm³, comparable to gold and nearly twice that of lead.

  • High Hardness and Wear Resistance

    Mohs hardness of 7.5–8. Maintains mechanical strength even under elevated temperatures.

  • Dimensional Stability

    Minimal thermal expansion ensures shape retention under temperature fluctuations.

  • Excellent Conductivity

    High electrical and thermal conductivity makes it suitable for contact elements and cooling applications.

Applications

Applications

This alloy is used wherever precise weight control, high concentricity, or radiation shielding is required. In grinding and drilling spindles, it achieves micrometer-level concentricity, enabling precise machining results.

As sprue inserts in steel molds, it prevents erosion in the gating area. In X-ray systems, it shields against radioactive radiation in both medical and metrology applications. Its resistance to heat and deformation also makes it suitable for inductive heating and upsetting of components.


Examples of use:

Aerospace, Automotive industry, Medical technology, Construction industry

Expert Advice for Your Application

Our material experts will advise you on the optimal material selection and custom solutions.

Contact us
Eine SVS Mitarbeiterin sitzt im Meetingraum mit Kunden und erklärt diesen die Kupfer-Elektrodenkappen am Laptop.