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platinum iridium 90/10 platinum iridium alloy wire for medical developing tube
Platinum iridium alloy is a platinum based binary alloy containing iridium. It is a continuous solid solution at high temperature. Solid phase decomposition occurs when it is slowly cooled to 975 ~ 700 ℃, but the phase equilibrium process is very slow. Iridium is difficult to volatilize and oxidize, which can significantly improve the corrosion resistance of platinum. There are ptlrl0 and ptlr17 5. Ptlr25, ptlr30 and other alloys have high hardness, high melting point, high corrosion resistance and low contact resistance. Platinum iridium alloy is a classic electrical contact material, which is used for the electrical contact of aero engine ignition contact, high sensitivity relay and micro-motor; Potentiometer, conductive rings and brushes of precision sensors such as aircraft, missiles and gyroscopes.
Application: Platinum iridium alloys are widely used in modern industry and technology. (1) Instrument materials: they are classic weak current contact and conductive ring materials, highly reliable ignition materials for aeroengines, potentiometer windings and wire tension materials for various precision instruments, sensors and micro motors, thick film resistance materials in microelectronic technology, etc. (2) Electrode materials in chloral alkali electrolysis industry. (3) Dental and other medical materials. (4) Standard resistance, weight and meter ruler materials. (5)In fact, platinum iridium alloys with high iridium content are not suitable for long-term use at high temperature. The iridium content of alloys widely used in industry is generally less than 30%. Ptir5 and ptir10 are classical potentiometer winding materials, Pt-Ir 17.5 is brush material, and ptir25 is a highly reliable aero engine point Fire contact material. Platinum iridium alloy has been replaced by a variety of gold-based alloys as winding materials and brush materials, but ptir25 alloy has no reliable replacement material so far.
Available grade of Pt-Ir alloy:
Material
Melting point °C
Density g/cm
Pure Pt --- Pt(99.99%)
1772
21.45
Pure Rh--- Rh(99.99%)
1963
12.44
Pt-Rh5%
1830
20.70
Pt-Rh10%
1860
19.80
Pt-Rh20%
1905
18.80
Pure Ir --- Ir(99.99%)
2410
22.42
Pt-Ir5%
1790
21.49
Pt-Ir10%
1800
21.53
Pt-Ir20%
1840
21.81
Pt-Ir25%
1840
21.70
Pt-Ir30%
1850
22.15
The parameter of Pt90/Ir10:
Item
Platinum/Iridium - Wire(Pt90/Ir10)
Function
Medical research and lab.
Melting point
1800
Hardness - Brinell
130-190
Tensile strength
380-620
Density
21.56
Thermal Conductivity
0.716 W/cm/K 298.2 K
Electrical Resistivity
10.6 microhm-cm 20°C
Available size of Pt90/Ir10 alloy:
Alloys Name
Type
Dimension
Pt-Ir 90/10
Wire
D=0.05-3mm
Pt-Ir 90/10
Rod
D=3-10mm
Pt-Ir 90/10
Foil
W=2-50mm
T=0.1-0.2mm
Pt-Ir 90/10
Tube
ID=0.85-5mm
OD=3mm-6mm
Grade
Melting point ℃
Density g/cm³
HV (soft)
HV (Hard)
Tensile strength(Mpa)
Resistance(µΩ•cm)20℃
Pt-Ir5%
1790
21.49
90
140
274
19.0
Pt-Ir10%
1800
21.53
130
230
282
24.5
Pt-Ir20%
1840
21.81
200
300
539
32.0
Pt-Ir25%
1840
21.72
200
300
238
33.0
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2008
Total Annual:
8000000-100000000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Huona (Shanghai) New Material Co., Ltd. Was established in 2008, currently have three divisions: Magnesium Division, Thermal Spray Division and Functional Material Division.Magnesium Division produces magnesium metal products. Various models of high-quality magnesium alloy plate, magnesium rods, hig... Huona (Shanghai) New Material Co., Ltd. Was established in 2008, currently have three divisions: Magnesium Division, Thermal Spray Division and Functional Material Division.Magnesium Division produces magnesium metal products. Various models of high-quality magnesium alloy plate, magnesium rods, hig...
