High melting point refractory metals
PRODUCT > RESISTANCE WELDING
Suitable for high temperature applications!
Realy heavy metals as rod, sheets, foil or wires. We deliver according to your individual specifications and requests!
High-melting metals are characterized in particular by their high melting point, a very low coefficient of thermal expansion and good electrical and thermal conductivity. At room temperature they have a high resistance to acids. They are therefore described as very resistant materials.
Applications: Welding technology, medical technology, lighting industry etc..
- W hardness HV 330 – 460
- density 19.25 g/cm³20C)
- Electrical conductivity 18.52 106 A V−1 m−1
- Melting point 3695 K (3422 °C)
- Available as round, square or rectangular bar and plate Available as round bar, rectangular bar and square bar. Max. Length 350mm- 500mm
- Tolerances according to customer specifications Surface raw or machined (ground) according to customer specifications
- Difficult to handle with milling machine
Tungsten (W) chemically pure 99.95% is a shiny grey, very brittle heavy metal with a very high density when pure.
Tungsten lanthanum 1% (WL1%) is a shiny gray heavy metal that is easy to work with when alloyed. Alloy: 99% Tungsten 1% Lanthanum Oxide
- Very good arc stability
- Long service life with inert gas welding
- Good ignition properties very high specific weight
- Good mechanical and machinability, much better than pure tungsten.
- Highly economical production radiation absorption
- Good strength properties
- Very corrosion and erosion resistant
- Great stability and resistance to deformation Elongation values of 10-15%
- Alloy: 99% tungsten 1% lanthanum
Molybdenum (Mo) chemically pure 99.95% is a gray shiny metal
- Hardness HV 160 - 250
- Density 10.28 g/cm³
- Electrical conductivity 18.2 M/ohm mm²106 A V−1 m−1
- Melting point 2896K 2623°C
- Molybdenum has the lowest coefficient of thermal expansion (CTE) of all pure materials
- Available as bars, plates, square and rectangular bars.
- Max length 300-500mm
- Surface raw or mechanically processed (ground) to tolerance or according to customer specifications
Titanium Zirconium Molybdenum (TZM) Ti 0.44-0.55% Zr 0.06-0.12% balance Molybdenum is a gray lustrous metal.
- Density: 10.1 g/cm³
- Vickers hardness: 220 - 320
- HV Hardness HV 200-250
- Tensile strength approx. 85% formed N/mm² 800-1,000 Yield strength N/mm² 750-900
- Elongation L=5D% 6-10 Modulus of elasticity kN/mm² 300
- Physical properties Electrical conductivity 20 °C (293 K) MS/m approx. 15
- Electrical resistance 20 °C (293 K) Ω•mm²mca. 0.06
- Temperature coefficient of electrical resistance 1 K approx. 0.0046
- Temperature coefficient of thermal expansion 0-300°C (273-573 K)1
- Good strength properties at temperatures up to 1400 °C.
- The recrystallization temperature of TZM is approximately 250°C higher than molybdenum and TZM offers better weldability.
Application:
Components for heat treatment plants,spot welding electrodes hot runner nozzles,
Tungsten copper 80% W / 20% Cu Tungsten copper is a composite material and has a heterogeneous structure
- Hardness HV approx. 240
- Density approx. 15.3 g/cm³
- Electrical conductivity approx. 21.6 M/Ohm mm²
- Available as a round rod from ø 4 mm to 20 mm Max length 300mm - 500mm
- Surface raw or machined (ground) according to customer specifications
- Density (mass) to (15-15.5 g cm²)
- Dimensionally stable and has high thermal conductivity
- Good strength (service life)
Application:EDM electrodes, balance weights, high voltage interrupters, welding electrodes, electrical contacts, darts/sports equipment, aerospace, shielding, power engineering and in various industrial applications. Tungsten copper is used wherever other copper materials are at their performance limits. (welding, eroding)
Handling:
Tungsten copper can be machined well with carbide tools. If the cutting pressure is too high, fine contours can easily break out. A correspondingly small feed rate or grinding machining is therefore recommended for this heterogeneous material. Tungsten copper has a completely fibre-free, fine-grain structure with high hardness and a high modulus of elasticity.
