High Performance Polishing Heavy Tungsten Alloy Sheet WNiCu
Heavy tungsten alloy sheet is based on tungsten (tungsten content
is generally 80% ~ 98%) with a small amount of nickel, iron,
copper, cobalt, molybdenum, chromium and other elements of the
alloy material. The density of high specific gravity tungsten alloy
is 15.20~18.70g/cm3, also known as high specific gravity tungsten
alloy or high density alloy material. Because tungsten alloys weigh
more than twice as much as iron or steel.
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 |
Heavy Tungsten Alloy Sheet Picture:
Introduction and characteristics of Heavy Tungsten Alloy Sheet
The high specific gravity tungsten alloys are mainly divided into
two series: W-Ni-Fe and W-Ni-Cu, and even W-Ni-Fe-Cu. In contrast,
W-Ni-Fe alloy has better mechanical properties. The defense
industry and all areas of the national economy play a huge role. It
is a very important new military material in the national defense
industry and is gradually being popularized in various civil
industries.
Tungsten heavy alloy has a series of excellent characteristics,
high specific gravity: general specific gravity of 16.5-18.75g/cm3,
high strength: tensile strength of 700-1000mpa, strong ray
absorption capacity: its capacity is 30-40% higher than lead, large
thermal conductivity: 5 times of die steel; Low thermal expansion
coefficient: only 1/2-1/3 of steel, good electrical conductivity;
Good weldability and machinability.
Application of Heavy Tungsten Alloy Sheet
- Die casting is a kind of precision casting process with less chips
and no chips, which can directly manufacture components with
complex shapes. Process sheet, high yield, no holes and saving raw
materials. Especially in ferrous metal die casting, the working
conditions of phase I die are very harsh. It must withstand the
scouring of high temperature, high pressure and metal flow, and can
resist corrosion, oxidation and thermal shock. High specific
gravity tungsten alloy is a good die casting die material because
of its good thermal conductivity and corrosion resistance. Compared
with copper die, it can improve the service life by tens of times.
