Coarse Tungsten Powder
Introduction
Types SR and ST tungsten powder manufactured by Chinatungsten Online are the highest apparent density tungsten powder available. The tungsten powder is ideal for weight filler material and radiation shielding applications.
Typical Physical Properties
| Type | Avg. Particle Size FSSS (um) | Apparent Density (g/in3) | Tap Density (g/cc) | Standand Screening |
| SR | 8.0 - 15.0 | 140 - 165 | 10.0 - 12.0 | -100 Mesh |
| ST | 20.0 - 40.0 | 150 - 165 | 10.0 - 12.0 | -60 Mesh |
TYPICAL TRACE ELEMENT CHEMICAL ANALYSIS
Metallic Impurity (WT %) |
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| Element | Max | Typical | Element | Max | Typical |
| Al | 0.003 | <0.001 | Mo | 0.010 | 0.002 |
| Co | 0.005 | <0.001 | Na | 0.010 | 0.002 |
| Cr | 0.020 | 0.008 | Ni | 0.020 | 0.008 |
| Cu | 0.002 | <0.001 | Si | 0.005 | <0.001 |
| Fe | 0.020 | 0.008 | Sn | 0.001 | <0.001 |
<0.001 Non-Metallic Impurity (WT %) |
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| Carbon | <0.010 | Oxygen (Loss on Reduction) | <0.350 | ||
| <0.001 W (WT %) > 99.8 Excluding Gases | |||||
ANALYTICAL REPORTS
A Certificate of Analysis (COA) accompanies each shipment of tungsten carbide powder. We prepare each COA to include the following: Average Particle Size (Fisher Sub-Sieve ASTM B-330) Apparent Density (Scott Volumeter ASTM B-329) Particle Size Distribution (Photelometer ASTM B-430, Sedigraph, or Malvern Mastersizer) Chemical Impurity Analysis Packing:In iron drums lined with double plastic bags of 50 or 100 kgs net each. Note:Any particular requirements to the products can be discussed.
