Tungsten Rhenium Bar
Tungsten Rhenium Bar Description
Material selection and processing
Its processing technology takes into account the high melting point and high hardness of tungsten and the solid solution strengthening effect of rhenium. It usually adopts powder metallurgy as the main method and plastic processing as the auxiliary method.
Alloy powder preparation - cold isostatic pressing - sintering densification - forging extrusion - cutting and grinding - chemical polishing - comprehensive quality control.
Characteristics
Good high-temperature performance
The melting point is as high as over 3000℃, and it can still maintain excellent strength and structural stability at high temperatures, and has strong creep resistance.
Stable chemical properties
It has low vapor pressure, strong antioxidant ability, and strong corrosion resistance to molten metals, acids, and alkalis.
Good electrical and thermal conductivity
The resistivity is about 10⁻⁷ Ω・m, and the thermal conductivity is about 170 W/(m・K), which can effectively carry current and has good heat dissipation performance.
Excellent processing performance
The addition of rhenium significantly improves the plasticity of the alloy, making it more ductile and weldable, which makes it easier to produce complex structural components.
Application
- Aerospace: used in key parts of aircraft engines, such as combustion chamber nozzles, turbine blades, high-temperature resistant support structures, etc., to ensure safe operation and service life of aircraft while reducing cracking.
- Semiconductor and electronics industry: using high melting point and stable electron emission capability, used as cathode material for electron beam evaporation equipment, the life is 2-3 times longer than pure tungsten filament.
- Precision measurement and instrumentation: used to manufacture high-temperature thermocouple materials and ion implantation machine parts, ensuring the stability of measurement results.
- Metallurgy and high-temperature industry: used in heating parts of sintering furnaces and vacuum arc furnaces to ensure stable heat transmission during welding and high-temperature processing.
- Chemical industry: in the chlor-alkali industry or hydrogen fluoride gas environment, as a support structure or stirring shaft, it resists erosion by strong corrosive media, and its life is more than 3 times longer than Hastelloy.
Low rhenium alloy (3%-5%)
It is preferably used in scenarios that require cold forming, such as electron gun filaments and precision thermocouple wires.
Medium Rhenium Alloy (10%-20%)
Suitable for medium corrosive or heat load environments, such as semiconductor annealing furnace components and chemical stirring shafts.
High Rhenium Alloy (25%+)
Specially designed for extremely high temperature (>2000℃) or strong scouring conditions, such as aircraft engine nozzles and nuclear fusion reactor targets.
Tungsten Rhenium Bar Dimension
|
Grade |
WRe3%,WRe5%,WRe25%, |
|
Purity |
99.95% |
|
Diameter |
Φ0.5-φ50mm |
|
Length |
30-2000mm |
| Tolerance accuracy |
Dia：±0.01 mm L：±0.5 mm |
|
Density |
18.6-19.3g/cm3 |
|
Shape |
Round |
|
Standard |
ASTM B777, GB |
|
Certification |
ISO 9001 |
Tungsten Rhenium Bar Pictures
Product Qualification
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