At Luma Wire Tech, we specialize in manufacturing ultra-fine wire solutions ranging from 4 to 300 microns for some of the world’s most demanding applications. Our material portfolio includes Tungsten and its alloys, Molybdenum and its alloys, Tungsten-Rhenium, Silver, Stainless Steel, Titanium and its alloys, Copper and its alloys, as well as Iron and its alloys.
To meet specific performance requirements, our wires can be supplied cleaned, polished, or enhanced through advanced reel-to-reel plating processes. Our plating capabilities include Gold, Silver, Copper, Palladium, Platinum, Tin, Nickel, and Rhodium, enabling improved conductivity, corrosion resistance, wear resistance, solderability, and other functional properties.
Every spool, from a few hundred to several thousand meters, is produced under strict quality standards to ensure reliability in industries such as medical devices, electronics, aerospace, and advanced research.
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The following table presents key specifications for Luma’s ultra-fine wire materials, including tungsten, molybdenum, tungsten-rhenium, stainless steel, titanium, copper, silver, iron, and selected specialty alloys. These values are part of Luma’s official fine wire technical product information, helping engineers and researchers select the optimal wire for their specific application.
| Base material | Diameter range** [µm] | Purity | UTS [N/mm2] | Rp 0,01* [N/mm2] | Elongation [%] | Surface treatment |
|---|---|---|---|---|---|---|
| Tungsten doped with K (W/K) | 4 – 300 | Min 99,95%W 60-65 ppm K | 2600 – 3500 | 1000 – 2000 | 1,5 – 3 | Electroetching Electropolishing Electroplating |
| Tungsten W (Re-3%) | 4 – 300 | Min 97% W 3% Re | 2700 – 3900 | 1000 – 2000 | 1 – 2,5 | Electroetching Electropolishing Electroplating |
| Molybdenum ILQ doped with 0,03 % La2O3 | 10 – 300 | Min 99,9% Mo 0,03% La2O3 | 2100 – 2400 | 700 – 1400 | 1 – 2 | Electroetching Electroplating |
| ILQ Mo – after hydrogen annealing straightening | 10 – 300 | Min 99,9% Mo 0,03% La2O3 | 1700 – 2000 | 600 – 1200 | 1 – 2 | Electroetching Electroplating |
| Pure Mo – annealed | 10 – 300 | Min 99,97% Mo | 700 – 900 | 600 – 900 | ≥ 10% | Electroetching Electroplating |
| Stainless Steel | 30 – 300 | Alloy dependent | Electroplating | |||
| Silver | 30 – 300 | Alloy dependent | Electroplating | |||
| Copper | 30 – 300 | Alloy dependent | Electroplating | |||
| Iron | 30 – 300 | Alloy dependent | Electroplating | |||
*) Elongation automatically calculated by the software of the Tensile Strength machine.
**) Maximum plating diameter is approx. 200 μm.
Our wires are available on spools (variable lengths) or cut-to-lengths (limited in dimensions).
The comparison below highlights the intrinsic strengths and key characteristics of each coating material available through our plating services, helping you identify the best solution for your application.
| Added Properties to Your Wire | Gold (Au) | Silver (Ag) | Palladium (Pd) | Platinum (Pt) | Rhodium (Rh) | Nickel (Ni) | Copper (Cu) | Tin (Sn) |
|---|---|---|---|---|---|---|---|---|
| Electrical & Thermal Conductivity | ✓✓ | ✓✓✓ | ✓ | ✓ | ✓ | ✓ | ✓✓✓ | ✓ |
| Electrical Contact Performance | ✓✓✓ | ✓✓ | ✓✓✓ | ✓✓ | ✓✓✓ | ✓✓ | ✓ | ✓ |
| Corrosion Resistance | ✓✓✓ | ✓ | ✓✓✓ | ✓✓✓ | ✓✓✓ | ✓✓ | ✓✓ | ✓✓ |
| Wear Resistance | ✓✓ | ✓ | ✓✓✓ | ✓✓ | ✓✓✓ | ✓✓✓ | ✓ | ✓ |
| Solderability | ✓✓ | ✓✓✓ | ✓ | ✓ | – | ✓ | ✓✓✓ | ✓✓✓ |
| EMI Shielding Performance | ✓✓ | ✓✓✓ | ✓ | ✓ | ✓ | ✓ | ✓✓✓ | ✓✓ |
| Biocompatibility | ✓✓✓ | ✓✓ | ✓✓ | ✓✓✓ | ✓✓✓ | – | – | – |
| Extreme Temperature Performance | ✓✓ | ✓ | ✓✓✓ | ✓✓✓ | ✓✓✓ | ✓✓ | ✓ | ✓ |
| Cost of Coating | ✓ | ✓✓ | ✓✓ | ✓ | ✓ | ✓✓✓ | ✓✓✓ | ✓✓✓ |
Legend
✓✓✓ = Excellent
✓✓ = Good
✓ = Suitable
– = N/A
Actual performance depends on coating thickness, substrate material, operating environment, and application requirements. Adhesion stability is influenced by coating thickness, substrate material and plating process design.
This silvery metal has the sixth highest melting point among all metals, at 2,623°C. Its resistance to heat without expansion or softening makes it ideal for high-pressure, high-temperature applications.
Molybdenum wire is sometimes preferred over tungsten due to its lower density—about half that of tungsten—while still offering a high strength-to-weight ratio. Its light weight and high ductility make it the top choice for mesh wire in satellite antennas, a fact highlighted in our fine wire technical specifications. This application specifically requires gold-plated molybdenum wire.
Gold-plated molybdenum is also used in electronics. Besides corrosion resistance, the gold layer improves electrical contact and solder wettability – an important detail in our fine wire technical specifications . Common uses include connectors and electronic tubes.
Tungsten has the highest melting point of all metals at 3,422°C, making it ideal for demanding applications like light bulb filaments, rocket nozzles, and electrodes. As detailed in our fine wire technical product information, tungsten wire is also widely used in medical imaging and aerospace due to its density and X-ray visibility.
Its high density (19.25 g/cm³) allows for excellent absorption of radiation and X-rays, which is why it’s often used in medical guide wires for X-ray visibility.
With the lowest vapor pressure and thermal expansion of any pure metal, tungsten excels in power electronics and extreme environments such as jet propulsion applications frequently covered in our fine wire technical specifications. Above 1,650°C, it also has the highest tensile strength of any metal.
Gold plating on tungsten wire improves oxidation resistance and solderability, a feature emphasized in our technical product information for advanced industries. This makes it suitable for nuclear detectors, digital printing, medical devices, and technical textiles—any field requiring high stability and heat resistance.
What diameters are available for Luma fine wires?
From 4 to 300 microns, with custom plating thicknesses on request.
Which base materials are used?
Primarily tungsten, molybdenum, tungsten-rhenium alloys, stainless steel, titanium, copper, silver, iron, and selected specialty alloys
What plating options for fine wires are offered?
The standard plating for wires with diameters ranging from 5 to 200 microns is gold, nickel, silver, palladium, platinum, copper, tin and rhodium.
What industries use Luma’s fine wires?
Medical, aerospace, defense, electronics, space technology, and advanced R&D.
Why is fine wire technical product information important for engineers?
Engineers rely on fine wire technical product information to ensure the wires they choose meet strict performance and compliance requirements in industries such as aerospace, medical technology, electronics, and defense.
How does Luma guarantee accuracy in fine wire technical product information? All data in our fine wire technical product information is backed by extensive lab testing, including SEM, EDS, tensile strength analysis, and surface inspections. This guarantees consistent quality and reliable performance for every spool.
Can I request custom specifications not listed in the fine wire technical product information? Yes. Luma provides tailor-made wire solutions, and our Technology Team can adapt dimensions, coatings, and finishes beyond what is documented in the fine wire technical product information.
Is Luma Wire Tech ISO certified? Yes. Luma Wire Tech operates under strict quality management systems and is certified according to ISO, ensuring that our fine wire technical product information aligns with international standards for safety, traceability, and reliability.
Do you want to discuss details from our fine wire technical product information with our Technology Team? Contact us today for tailored guidance
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