High Strength Heavy Tungsten Alloy Drills 90WNiCu In Industrial
UsageHeavy Tungsten Alloy Drills are made of tungsten base (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 can reach 15.20 ~
18.70g/cm3, also known as high specific gravity tungsten alloy or
high density alloy material. Because tungsten alloy weighs more
than twice as much as steel. Introduction and Feature of Heavy Tungsten Alloy DrillsTungsten alloy has a series of excellent properties, high specific
gravity: General specific gravity 16.5-18.75g/cm3, high strength:
tensile strength 700-1000mpa, strong light absorption: 30-40%
higher than general lead specific gravity, high thermal
conductivity: mold is 5 times that of steel; Low thermal expansion
coefficient: the capacity is only 1 / 2 / 3 / 3 of that of steel,
with good conductivity and resistance to welding and cutting. The usual method for manufacturing heavy tungsten alloys is to mix
the required tungsten, iron, nickel or copper powder, and then cold
press the liquid phase to nearly full density. During the liquid
phase treatment, the base tungsten alloy melts and part of tungsten
enters the solution to form large tungsten particles (20 ~ 60 μ m)
Microstructure of.
SPECIFICATIONS of Heavy Tungsten Alloy Drills| 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 |
Application of Heavy Tungsten Alloy Drills- Heavy tungsten alloy drill is made of high gravity tungsten alloy.
The wear resistance, hardness, strength and heat resistance of the
alloy are further improved, and the consistency of the products is
better guaranteed. Because of these characteristics, tungsten and
iridium holes have become an indispensable part of equipment in the
high-tech crystal glass industry.
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