Corrosion Resistance Heavy Tungsten Alloy Rivet For Auto
Parts Heavy Tungsten Alloy Rivet is a heavy tungsten alloy because
they weigh more than twice as much as steel. High specific gravity
tungsten alloys are usually refractory metals containing
tungsten-Ni-Fe, tungsten-Ni-Cu, or tungsten-Ni-Cu-Fe complexes.
Some tungsten alloys have added rare earths and/or other metals,
such as cobalt, molybdenum and chromium. Heavy tungsten alloys have
a high melting point, are twice as dense as steel and more than 50
percent heavier than lead. Heavy Tungsten Alloy Rivet SPECIFICATIONS :| 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 Rivet Picture:What is Heavy Tungsten Alloy Rivet?Rivet is a permanent mechanical fastener. Before installation, it
consists of a smooth cylindrical shaft with a head at one end. The
end opposite the head is called Buck's tail. For installation,
place the rivets in a punch or pre-drilled hole. The tail was then
"upset" (that is, deformed) so that it swelled to about 1.5 times
the diameter of the original shaft and the rivets were held in
place. To distinguish the two ends of the rivet, the original head
is called the factory head and the deformed end is called the shop
head or Barker tail. Tungsten rivet reaction block is widely used
in riveting gun. Because there is an effective head at each end of the installed
tungsten rivet reaction block, it can support tension loads (loads
parallel to the axis axis); However, it is better able to withstand
shear loads (loads perpendicular to the axis axis). Bolts and
screws are better suited for tension applications.
Application of Heavy Tungsten Alloy RivetFasteners used in traditional wooden boat construction, such as
copper nails and riveted bolts, work on the principle of rivets,
but tungsten rivet reaction blocks were used long before the term
"rivets" was invented, and within living memory they were usually
classified as nails and bolts, respectively.
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