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 fine wire technical product information covers a broad 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.
Do you want to discuss technical features with our Technology Team?
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.
Beyond manufacturing our own fine wires, Luma also offers reel-to-reel plating as a standalone service for customer-supplied wire. This allows you to add properties such as improved conductivity, corrosion resistance, wear resistance, solderability, or biocompatibility to the wire you already use – without changing your base material or existing wire supplier.
Our plating services are available for fine wires from 5 to approximately 200 microns, with Gold, Silver, Copper, Palladium, Platinum, Tin, Nickel, and Rhodium among the available plating materials.
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 wire diameters does Luma offer?
Luma manufactures ultra-fine wires in diameters ranging from 4 to 300 microns, depending on material, surface treatment, and application requirements.
Which base materials are available?
Our material portfolio includes Tungsten and its alloys, Molybdenum and its alloys, Tungsten-Rhenium, Stainless Steel, Titanium and its alloys, Copper and its alloys, Silver, Iron and its alloys, and selected specialty alloys.
What plating options does Luma offer?
Luma offers reel-to-reel plating with Gold, Silver, Copper, Palladium, Platinum, Tin, Nickel, and Rhodium. The optimal plating material and thickness depend on the required properties and application.
Can Luma plate customer-supplied wire?
Yes. Through Luma Fine Wire Plating Services, we can apply functional metal coatings to customer-supplied wire. This enables you to add or enhance properties such as conductivity, corrosion resistance, wear resistance, solderability, electrical contact performance, and biocompatibility without necessarily changing your existing base wire or wire supplier.
What wire diameters can be plated?
Our reel-to-reel plating processes are designed for fine wires ranging from 5 to approximately 200 microns, depending on the base material, plating material, coating thickness, and application requirements.
Which industries use Luma fine wires?
Luma fine wires and plating solutions are used in demanding applications across medical technology, electronics, aerospace, defense, space, technical textiles, sensing, shielding, and advanced R&D.
How does Luma verify wire quality and specifications?
Our quality control and laboratory capabilities include methods such as SEM, EDS, tensile testing, dimensional measurements, and surface inspection. Testing and inspection are selected according to the material, specification, and application requirements.
Can I request custom wire specifications?
Yes. Luma develops application-specific fine wire solutions and can tailor dimensions, materials, surface treatments, and plating to meet specific technical requirements. Our Technology Team can support you in identifying the most suitable solution for your application.
Is Luma Wire Tech ISO certified?
Yes. Luma Wire Tech is certified according to ISO 9001 and ISO 14001, supporting consistent quality management, environmental responsibility, traceability, and controlled manufacturing processes.
Do you want to discuss details from our fine wire technical product information with our Technology Team? Contact us today for tailored guidance
Gold-plated, polished and clean metal wires for demanding technical applications.
Our team support demanding wire applications.