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Type & Application
Type Application STW91 For making filament, shock-resistance filament and other high-temperature-resistance devices, ect. STW71 For making auto lamp filament and other anti-shock devices. STW61 For making coiled-coil filament, ect. STW31 For making coiled-coil or trispiral CFL filament, incandescent filament and support, ect. STW41 For making stranded tungsten wire, tungsten heater element, ect. STW42 For making stranded tungsten wire, tungsten heater element and other no special temperature required devices, ect. STW11 For making electrode and lead, ect. Chemical Composition (%)
W
Fe
Mo
Others
≥99.95 ≤0.0020
≤0.0030
≤0.0010
Note: "K" is not regarded as impurity. Product Feature
All wires showed here are doped tungsten wires and manufactured by the high tech of doping, acid washing, isostatic pressing, PLC controlled direct-sintering, swaging and auto feeding. The products are featured with minimumde formation at hight emperatures, high recrystalliztion temperatures, uniformity in dimension and excellent coilability. For tungsten rod weighing 3kg/pc, its rough welding tungsten wire weighing 5kg/pc. Customers are allowed to choose various types of tungsten wire in accordance with their specific applications.
Diameter Tolerance
Dia. µ
Weight
mg/200mm
Tolerance
Weight
Dia.
0 level
Ⅰlevel Ⅱ level Ⅰlevel Ⅱ level 10<d≤18
0.3~0.98
---- ± 3
± 4
---- ---- 18<d≤40 > 0.98~4.85 ± 2
± 2.5 ± 3 ---- ---- 40<d≤80 > 4.85~19.39 ± 1.5 ± 2.0 ± 2.5 ---- ---- 80<d≤300 > 19.39~272.71 ± 1.0 ± 1.5 ± 2.0 ---- ---- 300<d≤350 > 272.71~371.19 ---- ± 1.0 ± 1.5 ---- ----
350<d≤500 ----
---- ± 1.5 ± 2.0 500<d≤1800 ----
---- ± 1.0 ± 1.5
Note: The diameter range shall be determined by the customers. Chemical analysis report of one of our W doped wire
Customer --- Commodity Tungsten Wire Date May, 14, 1999 Brand --- Lot No. X735 Application --- Specification Ø 0.63mm ×3 ± 2% Quantity 2.70 Kg Appearance OK Greed Testing for Ø 1.25mm --- Sag Value for Ø 0.4mm --- Tensile Strength --- elongation --- Other ---
Mo K Other Elements (ppm max) Al As Bi Ca Cd Co Cr Cu Fe Mg Mn ≥ 99.95% 65ppm 12 10 1 10 1 5 1 1 13 5 5 Mo Na Ni P Pb S Sb Si Sn Ti V 20 3 5 5 1 5 2 10 1 5 5 Standard Tungsten Wire
Specification
Type
Tolerance
mg or %
Dia.(mm)
Weight
Mg/200mBlack
Cleaned
CLR. not anneal
0.0150
0.68
nsv
-
- 0.66-0.70
0.0195
1.15
asv
- - 1.12-1.18
0.0240
1.74
ndg
-
-
1.70-1.78
0.0315
3.01
ndg
-
-
2.94-3.08
0.0335
3.40
nsg
-
-
3.32-3.49
0.0350
3.71
-
asv
-
3.62-3.80
0.0365
4.04
ndg
-
-
3.94-4.14
0.0420
5.34
-
asv
-
5.23-5.45
0.0460
6.41
-
asg
-
6.28-6.54
0.0447
6.05
ndg
-
-
5.93-6.17
0.0575
10.02
ndg
-
-
9.82-10.22
0.0655
13.05
-
adg
-
12.79-13.31
0.0690
14.43
-
adg
-
14.14-14.72
0.1030
32.40
-
asg
-
31.80-33.00
0.1620
9.52
-
asge
-
78.33-80.71
0.1730
89.65
-
ashe
-
88.80-90.50
0.1860
106.10
-
ashe
-
104.00-108.20
0,1900
109.39
fd
-
-
107.75-111.03
0.1970
117.20
-
ashe
-
114.90-119.50
0.0550
4.08
-
-
-
+/- 1.5%
0.059
5.68
-
-
-
+/- 1.5%
0.068
7.55
-
-
-
+/- 1.5%
0.080
10.45
-
-
-
+/- 1.5%
0.083
11.25
-
-
-
+/- 1.5%
0.120
23.51
-
-
-
+/- 1.5%
0.130
27.59
-
-
-
+/- 1.5%
0.220 65.31 -
-
-
+/- 1.5% 0.210
72.01 -
-
-
+/- 1.5% 0.220
79.03 -
-
-
+/- 1.5% 0.260
110.38 -
-
-
+/- 1.5% 0.310
156.91 -
-
-
+/- 1.5% 0.380 231.20 - - - +/- 1.5%
| This type is our standard products, if you are interested in it or you have any question, please let us know the details of your requirements and this type number. Or please fill in the form given in our Terms & Conditions. |
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