Good Quality High Density Tungsten Alloy Beads For Counterweight
Tungsten Alloy Beads with high density, high strength, high hardness alloy (commonly known as 3H) and good comprehensive performance, ductility, electrical conductivity, thermal conductivity and other excellent performance, in the domestic weapon manufacturing plays an important role, has been widely used in national defense industry, aerospace and civil industry (such as electric power industry and drilling). High specific gravity tungsten alloy material has become a kind of military and civil alloy material.
SPECIFICATION & CHEMICAL COMPOSITIONS (NOMINALS)
| Chemical Composition | 90%W | 93%W | 95%W | 97%W |
| State | Sinter | Vacuum | Forge | Sinter | Vacuum | Forge | Sinter | Vacuum | Sinter | Vacuum |
Density
(g/cc) | 16.85-17.25 | 17.15-17.85 | 17.75-18.35 | 18.25- 18.85 |
Hardness
(HRC) | 32 Max | 30 Max | 40 Min | 33 Max | 31 Max | 40 Min | 34 Max | 32 Max | 35 Max | 33 Max |
| Tensile Strength (Max) | 770 Min | 900 Min | 1400
Max | 770 Min | 910 Min | 1440 Max | 735 Min | 920 Min | 700 Min | 850 Min |
Yield Strength
(Mpa) | 620 Min | 620 Min | 1280 Max | 650 Min | 650 Min | 1340 Max | 650 Min | 650 Min | - | - |
Elongation
(%) | 5 Min | 15 Min | 5 Min | 5 Min | 12 Min | 3 Min | 3 Min | 12 Min | 2 Min | 6 Min |
Tungsten Alloy Beads Picture
Introduction and Characteristics of Tungsten Alloy Beads
Tungsten heavy alloys contain 90% to 98% tungsten, which is responsible for their high density (16.5 to 19.00g/cc). Nickel, iron and/or copper are used as metal binder bases to hold fragile tungsten particles together, making tungsten alloys tough and easy to use. Nickel-iron is the most commonly used additive, with a ratio of 7Ni:3Fe or 8Ni:2Fe (weight ratio).
Common processes for preparing tungsten heavy alloys include mixing the desired amount of tungsten, iron, nickel or copper powder and then cold pressing and liquid phase sintering to almost full density. During the liquid phase treatment, the matrix tungsten alloy melts and some tungsten is brought into the solution to form a microstructure through which large tungsten particles (20-60μm) are dispersed in the matrix alloy.
Application of Tungsten Alloy Beads
Application in aviation industry
- An important use of high specific gravity tungsten alloy is for the lifting control and rudder balance device of aircraft and helicopter, the control device of aircraft wing and rudder and the damping device of aircraft. It is used as static and dynamic balance weight and damping device of rotor blade on helicopter.
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WNiFe Counter Weight Tungsten Beads High Strength For Defense Industry Images
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