Industrial High Density 90WNiFe Heavy Tungsten Alloy ThreadsHeavy Tungsten Alloy Threads have high hardness (also known as
3H alloy), and has excellent comprehensive properties such as good
ductility, thermal conductivity and thermal conductivity. It plays
an important role in the manufacture of weapons and is widely used
in the defense industry. Aerospace and civil industries (such as
electrical, drilling and other industries). High specific gravity
tungsten alloy has become a military and civilian alloy material. Heavy Tungsten Alloy Threads SPECIFICATION & CHEMICAL| 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 |
Heavy Tungsten Alloy Threads Picture:
Introduction and characteristics of Heavy Tungsten Alloy
Threads- The tungsten content of heavy tungsten alloy is between 90% and
98%, which is the reason for its high density (16.5~19.00g/CC).
Nickel, iron and/or copper are used as metal bonding substrates to
bind the fragile tungsten particles together, making tungsten
alloys malleable and easy to work with. Nickel-iron is the most
commonly used additive in a ratio of 7Ni:3Fe or 8ni:2Fe (weight
ratio).
- The usual process for making heavy tungsten alloys involves mixing
the desired amount of tungsten, iron, nickel or copper powder,
followed by cold pressing and liquid phase sintering to near full
density. During the liquid phase treatment, a certain amount of
tungsten is added to the tungsten alloy melt to form a
microstructure and form large tungsten particles (20–60 μm)
dispersed in the matrix alloy.
Application of Heavy Tungsten Alloy Threads- In order to improve the nuclear kinetic energy and armor piercing
ability of projectile, the use of high specific gravity tungsten
alloy is a successful technical measure in the design and
development of armor piercing projectile abroad. At present, in
addition to the United States, many Western European countries have
adopted tungsten alloy core materials.
|
