W-1 99.95% Tungsten Products Wolfram Plates for Vacuum Furnace / Sapphire Growth
Tungsten metal has high melting point, good thermal and electrical conductivity as well as low vapor pressure at high temperatures. Such properties make tungsten metal a candidate for use as a high performance material in a variety of high temperature products and processes. In spite of its characteristic of oxidizing easily when heated in air, tungsten metal is widely utilized as a heating element material in industrial furnaces.
Pure Tungsten Plates Specifications:
Purity: >=99.95%
Density: 19.3g/cm3
Size: T0.05-50mmxW50-500mmxL100-1000mm
Surface: Chemical cleaned/polished
Standard: ASTM B760/GB T3875
Features of Tungsten Rods:
Surface: Black and polished
Purity: ≥ 99.95%
Density: ≥ 19.2g/cm3,
Surface roughness: < 1.6
Dia: 1.0-120mm
Standard: ASTM, GB
Application of Tungsten Plates:
Used in electronics, illumination, vacuum plating, electron-vacuum, shield, high temperature furnace industry.
Specifications of Tungsten Plates:
|
Tolerance for the tungsten plates |
||||||
|
Thickness(mm) |
Thickness Tolerance |
Width(mm) |
Width Tolerance(mm) |
Length(mm) |
Length Tolerance(mm) |
|
|
width≤200mm |
width≥200-400mm |
|||||
|
>1.0-2.0 |
±0.15 |
±0.25 |
50-400 |
±2 |
50-1000 |
+5/-0 |
|
>2.0-3.0 |
±0.30 |
±0.30 |
50-400 |
±2 |
50-1000 |
+5/-0 |
|
>3.0-4.0 |
±0.30 |
±0.40 |
50-400 |
±2 |
50-1000 |
+5/-0 |
|
>4.0-8.0 |
±0.40 |
±0.50 |
50-400 |
±2 |
L |
+5/-0 |
Material Testing Report of Pure Tungsten:
|
W (> %) |
Chemical Content (< %) |
|||||||||||
|
99.95 |
Fe |
Ca |
P |
Sn |
Al |
Ni |
N |
Sb |
Si |
O |
Pb |
As |
|
0.005 |
0.003 |
0.001 |
0.0001 |
0.002 |
0.003 |
0.003 |
0.001 |
0.003 |
0.003 |
0.0001 |
0.002 |
|
|
Mg |
C |
Bi |
Mo |
- |
- |
- |
- |
- |
- |
- |
- |
|
|
0.002 |
0.005 |
0.0001 |
0.001 |
- |
- |
- |
- |
- |
- |
- |
- |
|
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