1.Description
Manganese compounds have been used by man for thousands of years.
The ancient Egyptians and Romans used manganese compounds
for dyeing in glass manufacture. In 1774 Johann Gottlieb Gahn
succeeded in extracting pure manganese from brownstone. In the
structure
of the earth's crust manganese is the second most common heavy
metal after iron.
Important manganese ore deposits are to be found in South Africa,
Australia, India, China, Mexico, Ukraine and Russia amongst others.
"Manganese nodules" can also be found in the deep sea.
2.Properties
Chemical Content
| Ni | Mn | Si |
| Chemical Content( %) | Bal. | 1.5~2.2 | 0.1Max |
Mechanical Properties
| Resisivity at 20ºC | 11.5 microhm cm |
| Density | 8.81 g/cm3 |
| Thermal Conductivity at 100ºC | 41 Wm-1 ºC-1 |
| Linear Expansion Coefficient(20~100ºC) | 13×10-6/ ºC |
| Melting Point(Approx.) | 1435ºC/2615ºF |
| Tensile Strength | 390~930 N/mm2 |
| Elongation | Min 20% |
| Temperature Coefficient of Resistance(Km, 20~100ºC) | 4500 x 10-6 ºC |
| Specific Heat(20ºC) | 460 J Kg-1 ºC-1 |
| Yield Point | 160 N/mm2 |
3. Specification
diameter:0.01mm-6.0mm
4.Usage
The nickel-based electric vacuum material produced by Ualloy has
below
advantages: excellent electrical conductivity, weldability
(welding, brazing), can be
electroplated, and a suitable linear expansion coefficient of the
alloy inclusions,
volatile elements and gases content is low. Processing performance,
surface quality,
corrosion resistance, and can be used to make the anode, spacers,
electrode holder, etc., but also can lead filament bulbs, fuses.
5. Features
The company electrode material (conductive material) having a low
resistivity, high temperature strength, the smaller the arc melting
under the action of evaporation and so on.
6. Products and services
1). Fine after-sale services;
2). Small order accepted;
3). Fast delivery;
Pure Nickel 200
Commercially wrought Nickel 200 ( UNS N02200) , a grade of pure
nickel contains 99.2% nickel, has excellent mechanical
properties, magnetic properties, high thermal, electrical
conductivity and excellent resistance to many corrosive
environment.
Nickel 200 is useful in any environment below 600℉(315℃). It has
highly resistance to neutral and alkaline salt solutions.
Nickel 200 also has low corrosion rates in neutral and distilled
water.
The applications of pure nickel includes food processing equipment,
magnetostrictive devices and rechargeable batteries,
computers, cellular Phone, power tools, camcorders and so on.
Chemical Composition
| Alloy | Ni% | Mn% | Fe% | Si% | Cu% | C% | S% |
| Nickel 200 | Min 99.2 | Max 0.35 | Max 0.4 | Max 0.35 | Max 0.25 | Max 0.15 | Max 0.01 |
Physical Data
| Density | 8.89g/cm3 |
| Specific Heat | 0.109(456 J/kg.℃) |
| Electrical Resistivity | 0.096×10-6ohm.m |
| Melting Point | 1435-1446℃ |
| Thermal Conductivity | 70.2 W/m-K |
| Mean Coeff Thermal Expansion | 13.3×10-6m/m.℃ |
