Standard WNiFe WNiCu Machined Heavy Tungsten Alloy ScrewsHeavy Tungsten Alloy Screws is a kind of tungsten as the matrix
alloy material (tungsten content is generally 80%~98%), and a small
amount of nickel, iron, copper, cobalt, molybdenum, chromium and
other elements. The density of high specific gravity tungsten alloy
is up to 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 steel. SPECIFICATIONS & CHEMICAL COMPOSITIONS (NOMINAL)| 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 |
Machined Heavy Tungsten Alloy Screws Picture:What is Heavy Tungsten Alloy Screws?- Heavy tungsten alloy is mainly divided into nickel nickel iron,
nickel nickel alloy, nickel copper, even tungsten alloy two series.
In contrast, o - ni - fe alloy has good mechanical properties and
plays an important role in various fields of national defense
industry and national economy. It is a very important new military
material in national defense industry and has been gradually
extended to various civil industries.
- The tungsten content in tungsten alloys varies from 90% to 98%,
which is responsible for their high density (16.5 to 19.00g/CC).
Nickel, iron and/or copper are used as a metal binder base to hold
the fragile tungsten particles together, making the tungsten alloy
malleable and easy to work. Ferric nickel Nickel is the most
commonly used additive in 7Ni: 3Fi or 8Ni: 2Fe by weight
Application of Heavy Tungsten Alloy Screws- High gravity tungsten alloys are used to make tool holders,
especially boring bars.
- High gravity tungsten alloy is used as the counterweight material
for the high crankshaft of the small engine of forest chainsaw.
- The electrodes of edM and electrochemical machine tools are also
made of tungsten gold with high gravity
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