The only metallurgy challenge we haven’t conquered in 500 years – is your next one

By tradition, our alloys have satisfied the most exacting tolerances —in compliance with all national and international standards. By temperament, we are innovators who embrace a challenge—rising to meet individual demands and the highest performance requirements. Our continually expanding line of products and capabilities include soft annealed wires (down to 7 microns), strips, rods, flat wires in standardized or customer-specific construction.


We offer alloys for internationally standardized thermocouples (also mineral insulated) as well as extension and compensating leads for producing thermocouples, quick cups, connectors and plugs. Solid, stranded and flat wires, strips, foils and rods available. Our broad range of thermoelectric alloys comprises types K, J,T, E, L and U—along with alloys for compensation leads for types B, C, D, R and S.

  • Alloys for thermocouples, thermoelectric leads and compensation leads
  • Temperature range from -40°C to + 1,200°C
  • Compliance with all common international standards
  • Special requirements with regard to thermoelectric voltage and dimensional tolerances or special thermoelectric voltages, e.g. for mineral-insulated wires, can also be fulfilled


Our resistance alloys are used in many areas of electronics and electrical engineering and can be supplied in many different forms and types. Our alloys MANGANIN®, ZERANIN®, ISAOHM® and NOVENTIN® are homogenous solid-solution alloys that are annealed and stabilized in the primary thermodynamic state—guaranteeing stability values in the ppm range per annum.

  • 15 Watts permanent power
  • Made from electron-beam welded composite
  • Soldering temperatures up to 350°C/30 secs or 250°C/10 mins
  • High permanent and pulse power rating


Produced (according to specific client requirements) in the classic melting metallurgical process and then formed into wire, strip or film semi-finished products, Isabellenhütte’s powder and paste alloys offer new possibilities for product innovation. Processing techniques such as metal injection molding, for example, allow a freedom of design as to the shape of components.


Products such as wire, strip or foil are melted at Isabellenhütte using conventional melting metallurgical processes and then are subject to various production processes such as inert gas atomization, mechanical methods or chemical reduction. These metallic powders—made from our Cu or Ni base alloys, such as Manganin®, Isotan®, Isaohm®, Noventin® or Zeranin® 30— then support a number of our manufacturing technologies supporting the field of printed electronics, for example, such as:

  • Thick film technology where metal-filled resistance pastes are processed
  • Thin film technology where metallic inks are used
  • Metal injection molding
  • Additive production techniques / 3D printing


ISA-CON® —High electrical conductivity alloy

  • ISA-CON® 414
  • ISA-CON® 450

Solves many of the shortcomings of pure copper (e.g. low tensile strength, low mechanical hardness and limited bending strength.) Varieties of this alloy can provide significantly higher tensile strength than even copper coated stainless steel Staku (< 1,400 Mpa). ISA-CON® comes very close to copper compared to other high-strength alloys (up to 90% in e.g. ISA-CON 414). ISA-CON® is a RoHS-compliant material which can replace similar cadmium-containing materials.

  • Absorbs elastic energy in high tensile loads while remaining optimally conductive
  • Suitable for signaling and overhead lines for railways and automotive cables
  • Excellent performance in rivets and screws
  • Used in energy supply/production, data management/transmission

We also offer ISA-BRAZE alloys that allow tremendous flexibility in materials and properties for joining and bonding.


Our new copper alloy ISA-CON®450 combines the strength of stainless steel with copper-like conductivity—for an extraordinary solution in the manufacture of conductive fasteners, e.g. screws, bolts, spring contacts, plugs or bus bars.

  • Tensile strength > 500 Megapascals
  • Conductivity = 80% that of copper (IACS)
  • Very good cold formabilityVery good thermal conductivity
  • Reduced resistance minimizes heat loss/performance
  • Can help dissipate heat from other system components



Long-term safety and reliability for the most sophisticated—and demanding—applications.
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Fit more technology into limited spaces within cost and performance parameters.
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From factory automation, to performance-driven consumer goods, we support bold innovation.
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Supporting life-saving advances with compact technology and long-term reliability.
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