Attribute：
1. High melting point and high corrosion resistance
2. Super thermal efficiency
3. 99.95% Purity
4. Appearance: silver white/gray metallic luster
The surface of electrolytic polished tungsten wire shall be smooth, clean, gray silver with metal luster. The tungsten wire features excellent formability, short life and supper lighting efficiency.
Chemical Composition:
| Designation | Tungsten Content | Impurity Elements Content | |
| Total | Each | ||
| WAL1、WAL2 | ≥99.95% | ≤0.05% | ≤0.01% |
| W1 | ≥99.95% | ≤0.05% | ≤0.01% |
| W2 | ≥99.92% | ≤0.08% | ≤0.01% |
| Note: Potassium is not counted in impurities content. | |||
Chemical Composition:
| Diameter (μm) | Weight (mg/200mm) | Weight(mg/200mm) Tolerance(%) | Diameter Tolerance(%) | ||||
| Grade 0 | Grade 1 | Grade 2 | Grade 0 | Grade 1 | Grade 2 | ||
| 5≤d≤12 | 0.075~0.44 | － | ±4 | ±5 | － | － | － |
| 12 | >0.44~0.98 | － | ±3 | ±4 | － | － | － |
| 18 | >0.98~4.85 | ±2 | ±2.5 | ±3 | － | － | － |
| 40 | >4.85~19.39 | ±1.5 | ±2.0 | ±2.5 | － | － | － |
| 80 | >19.39~272.71 | ±1.0 | ±1.5 | ±2.0 | － | － | － |
| 300 | >272.71~371.79 | － | ±1.0 | ±1.5 | － | － | － |
| 350 | － | － | ±1.5 | ±2.0 | ±2.5±1.0 | ||
| 500 | － | － | ±1.0 | ±1.5 | ±2.0 | ||
Luoyang Combat can produce different size and shapes tungsten & molybdenum products according to client's requirements.
Parameter：
| 1.Tungsten Wires | |||
| Diameter (µm) | Wire Weight per 200mm in length (mg) | Wire Weight per 200mm in length for tolerance (%) | |
| 15 d 18 | > 0.3~0.98 | Class A | Class B |
| 2.5 | 3 | ||
| 18 < d 40 | >0.98~4.85 | 2 | 2.5 |
| 40 < d 80 | >4.85~19.39 | 1.5 | 2 |
| 80 < d 300 | >19.39~30.30 | 1 | 1.5 |
| 300< d 400 | >272.71~484.80 | 0.5 | 1 |
2.Cleaned Tungsten Wires | |||||
Diameter (µm) |
Wire Weight per 200mm in length (mg) |
Wire Weight per 200mm in length for tolerance (%) |
Linearity |
||
|
10 d 18 |
>0.3~0.98 |
Class A |
Class B |
Suspension length (%) |
Chord high (mm) |
+2.5 |
+3.0 |
- |
- |
||
18 < d 40 |
>0.98~4.85 |
+2.0 |
+2.5 |
- |
- |
40 < d 80 |
>4.85~19.39 |
+1.5 |
+2.0 |
90 |
- |
80 < d 100 |
>19.39~30.30 |
+1.0 |
+1.5 |
- |
- |
100< d 300 |
>30.30~272.71 |
+1.0 |
+1.5 |
- |
8 |
300< d 400 |
>272.71~484.80 |
+0.5 |
+1.0 |
- |
- |
Applications：
Electronic watch,electronic computer,mini-bulb and other precision equipment manufacture.
EN
