Tungsten Rod& wire
1) Standard: GB / T 4187-2017
Name | Pure tungsten bars |
Grade | W1,W2 |
Purity | >=99.95% |
Density | 19.3/cm3 |
Surface | black,polished, sintered,machining |
Diameter range | φ1mm-90mm |
Length | Max 2000mm |
MOQ | 1kg |
2) Usage: mainly used for manufacturing electric vacuum parts, guide rods, electrodes, outgoing lines, high-temperature parts, furnace heating rods, etc.
Produce Name: tungsten wire
3) Standard: GB / T 4187-2017
4) High temperature performance: subdivide various high temperature performance requirements according to different uses of customers.
5) Consistency of wire diameter: the quality difference of any two continuous 200mm wire segments of tungsten wire shall not exceed 0.5% of the nominal specification.
6) Straightness: straightening tungsten wire: tungsten wire with diameter <100um, and the natural sag height of each 500mm wire segment >450mm; For tungsten wire with diameter >100um, the arc height of every 100mm chord length is ≤ 10mm.
7) Surface condition: the surface is smooth without cracks, burrs, scratches, pits, unevenness, oil stains and other defects.
8) Wire winding performance: in the process of wire winding, tungsten wire does not work continuously.