Tungsten powder is an important metal powder with high density, high melting point, good mechanical properties and chemical stability. It is widely used in the manufacture of high-speed steel, cemented carbide, rocket engine components, electronic devices and other fields. Tungsten powder has different shapes and particle sizes and can be used in different fields. Fine tungsten powder can be used to manufacture electronic devices, catalysts, etc. Coarse tungsten powder can be used to manufacture high speed steel, cemented carbide and so on. In addition, tungsten powder can also be mixed with other metals or non-metallic elements to prepare alloys or composite materials with better properties.
Tungsten / wolfram powder | ||||
Chemistry/Grade | FW-1 | FW-2 | FWP-1 | |
Less than (Max.) | Fe | 0.005 (particle size ≤ 10um) | 0.03 | 0.03 |
0.01 (particle size >10um) | ||||
Al | 0.001 | 0.004 | 0.006 | |
Si | 0.002 | 0.006 | 0.01 | |
Mg | 0.001 | 0.004 | 0.004 | |
Mn | 0.001 | 0.002 | 0.004 | |
Ni | 0.003 | 0.004 | 0.005 | |
Pb | 0.0001 | 0.0005 | 0.0007 | |
Sn | 0.0003 | 0.0005 | 0.0007 | |
Cu | 0.0007 | 0.001 | 0.002 | |
Ca | 0.002 | 0.004 | 0.004 | |
Mo | 0.005 | 0.01 | 0.01 | |
P | 0.001 | 0.004 | 0.004 | |
C | 0.005 | 0.01 | 0.01 |
Grade | Item No | (BET/FSSS) | Oxygen(%)max |
Ultrafine particles | ZW02 | >3.0m2/g | 0.7 |
ZW04 | 2.0-3.0m2/g | 0.5 | |
Micro-sized particles | ZW06 | 0.5-0.7um | 0.4 |
ZW07 | 0.6-0.8um | 0.35 | |
ZW08 | 0.7-0.9um | 0.3 | |
ZW09 | 0.8-1.0um | 0.25 | |
ZW10 | 0.9-1.1um | 0.2 | |
Fine particles | ZW13 | 1.2-1.4um | 0.15 |
ZW15 | 1.4-1.7um | 0.12 | |
ZW20 | 1.7-2.2um | 0.08 | |
Middle particles | ZW25 | 2.0-2.7um | 0.08 |
ZW30 | 2.7-3.2um | 0.05 | |
ZW35 | 3.2-3.7um | 0.05 | |
ZW40 | 3.7-4.3um | 0.05 | |
Middle particles | ZW45 | 4.2-4.8um | 0.05 |
ZW50 | 4.2-4.8um | 0.05 | |
ZW60 | 4.2-4.8um | 0.04 | |
ZW70 | 4.2-4.8um | 0.04 | |
Coarse particles | ZW80 | 7.5-8.5um | 0.04 |
ZW90 | 8.5-9.5um | 0.04 | |
ZW100 | 9-11um | 0.04 | |
ZW120 | 11-13um | 0.04 | |
Characteristic coarse particle | ZW150 | 13-17um | 0.05 |
ZW200 | 17-23um | 0.05 | |
ZW250 | 22-28um | 0.08 | |
ZW300 | 25-35um | 0.08 | |
ZW400 | 35-45um | 0.08 | |
ZW500 | 45-55um | 0.08 |
Huarui has strict quality management system. We test our products first after we finish our production, and we test again before every delivery, even sample. And if you need, we would like to accept third party to test. Of course if you like, we could provide sample to you to test.
Our product quality is guaranteed by Sichuan Metallurgical Institute and Guangzhou Institute of Metal Research. The long term cooperation with them can save a lot of testing time for customers.