Zircaloy-4 Zirconium Alloy
Zirconium Alloy 4 Tubing is a zirconium-based alloy known for its excellent corrosion resistance, mechanical strength and heat transfer properties. It is primarily used in nuclear power applications, particularly as a casing material for fuel rods in nuclear reactors.
Zircaloy 4 tubes are prized for their ability to withstand the harsh conditions of nuclear reactors, including high temperatures, irradiation and corrosive environments.
Zircaloy 4 pipes exhibit excellent corrosion resistance in high-temperature water and steam environments, making them ideal for use in nuclear reactors. The alloy also offers good resistance to general corrosion, including acids, alkalis and brines. It is particularly known for its excellent resistance to stress corrosion cracking, which is critical to maintaining the integrity of the nuclear fuel cladding. This is critical to maintaining the integrity of the nuclear fuel cladding.
zircaloy-4 alloy tube chemical composition
| Element | Min | Max |
|---|---|---|
| Zr | - | 98.8 |
| Sn | 1.2 | 1.7 |
| Fe | - | 0.2 |
| Cr | 0.7 | 0.13 |
| Ni | - | 0.1 |
| O | - | 0.18 |
| H | - | 0.005 |
zircaloy-4 zirconium pipe mechanical property
| Tensile Strength | 550 MPa (80,000 psi) minimum |
| Yield Strength | 380 MPa (55,000 psi) minimum |
| Elongation | 20% minimum (in 2-inch gauge length) |
| Hardness | HRB 80-90 (Typical) |
zircaloy-4 zirconium alloy tube physical property
| Density | 6.51 g/cm³ |
| Melting Range | 1852°C (3366°F) |
| Thermal Conductivity | 22.3 W/m·K (at 20°C) |
| Electrical Resistivity | 42.0 μΩ·m (at 20°C) |
| Modulus of Elasticity | 99 GPa (14.4 x 10^6 psi) |
zirconium alloy Products Details
zirconium alloys to zirconium as the basis for the addition of other elements composed of alloys. Zirconium alloys have good corrosion resistance in water and steam at high temperatures and pressures between 300 and 400 degrees Celsius, suitable mechanical properties, low atomic thermal neutron absorption cross section (0.18 en for zirconium), and good compatibility with nuclear fuel, so they can be used as core structural materials for water-cooled nuclear reactors (fuel cladding shells, pressure tubes, brackets and orifice tubes), which is the main use of zirconium alloys.
zirconium alloy zircaloy-4 Products image
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