GUARANTEE PARAMETERS
◆ Grade:
1.FW-1: W≥99.95%
2.FW-2: W≥99.9%
◆ Specifications:
Grade | FW-1 | FW-2 |
Impurities
(%max） | Fe | 0.0050 | 0.0300 |
Si | 0.0020 | 0.0050 |
Ca | 0.0020 | 0.0040 |
Al | 0.0010 | 0.0040 |
Mn | 0.0010 | 0.0020 |
Mg | 0.0010 | 0.0040 |
Ni | 0.0030 | 0.0040 |
Sb | 0.0010 | 0.0010 |
Cr | 0.0010 | 0.0040 |
As | 0.0010 | 0.0020 |
Pb | 0.0001 | 0.0005 |
Bi | 0.0001 | 0.0005 |
Sn | 0.0003 | 0.0005 |
Cu | 0.0007 | 0.0010 |
Mo | 0.0050 | 0.0100 |
K | 0.0015 | 0.0015 |
Na | 0.0015 | 0.0015 |
S | 0.0010 | 0.0020 |
P | 0.0010 | 0.0040 |
C | 0.0050 | 0.0100 |
Type | Fsss
(um) | Scott Density
(g/cm3） | Oxygen content
（%） |
06 | 0.6-0.8 | 1.4-2.2 | 0.5 |
08 | 0.81-1.0 | 1.7-2.5 | 0.4 |
10 | 1.01-1.5 | 2.0-2.8 | 0.3 |
15 | 1.51-2.0 | 2.2-3.0 | 0.3 |
20 | 2.01-3.0 | 2.6-3.5 | 0.25 |
30 | 3.01-4.0 | 3.2-4.2 | 0.25 |
40 | 4.01-5.5 | 3.8-4.8 | 0.25 |
55 | 5.51-7.0 | 4.0-5.2 | 0.2 |
70 | 7.01-15.0 | 4.2-5.5 | 0.2 |
150 | >15.0 | 4.5-6.5 | 0.1 |
Application:
FW-1 used for tungsten carbide powder, large tungsten slab or other tungsten products;
FW-2 used for tungsten contact alloys, high-density shielding materials.
◆Remarks：Any special requirement to the products can be discussed.
