Zirconium Bar Hexagon
Item: Zirconium Bar Hexagon
Material: High Purity Zirconium
Purity: Zr 99% - 99.95%
Melting point: 1850℃
Density: 6.51g/cm3
Standards: ASTMB551, ASTM B550
Product Introduction
Description
Zirconium bar hexagons are an excellent material for nuclear power rods due to their low neutron absorption cross-section and relatively high melting point (1850 °C or 3371 °F).
Highly corrosive chemicals can be handled with Zirconium rod components. Black Zirconium bars can be an excellent starting material for reactors and crucibles. Zirconium electrodes use Zirconium bars well. Due to their corrosion resistance, Zirconium bar hexagons and other zirconium products are also widely used in medical equipment.
R60702 is a zirconium alloy that contains small amounts of niobium and hafnium, which gives it enhanced strength and corrosion resistance properties compared to pure zirconium. At room temperature, the surface of the metal R60702 alloy Zirconium rod is covered with a dense oxide layer and still has a metallic luster. At 700°C, 30% of oxygen atoms, 20% of nitrogen atoms, and 50% of hydrogen atoms can be absorbed. Black Zirconium bars and zirconium chips are prone to spontaneous combustion and explosion due to their large specific surface and high activity. Zirconium rod has good corrosion resistance to dilute hydrochloric acid and dilute sulfuric acid, and R60702 alloy corrosion resistance in 50% NaOH solution is better than that of tantalum, so zr 702 has a bright future in the chemical industry.
Zirconium rod is an alloy made from metal zirconium and other metals. Due to the excellent corrosion resistance of zirconium, zirconium alloy tubes, and rods are often used as important nuclear materials for nuclear fuel components and internal structures in water-cooled reactors. Pure zirconium tubes and rods are mainly used to manufacture chemical equipment, as they are expensive and have limited usage. The chemical composition and usage of commonly used zirconium tube rods are shown in the table, among which zirconium tin alloy tube rods are used in large quantities.
Chemical Composition
|
R60702 |
Zr+Hf≥99.2 |
Hf≤4.5 |
Fe+Cr≤0.2 |
C≤0.05 |
N≤0.02 |
H≤0.005 |
O≤0.16 |
/ |
|
R60704 |
Zr+Hf≥97.5 |
Hf≤4.5 |
Fe+Cr≤0.2-0.4 |
N≤0.05 |
H≤0.005 |
Tin1.0-2.0 |
Nb0.18 |
/ |
|
R60705 |
Zr+Hf≥95.5 |
Hf≤4.5 |
Fe+Cr≤0.2 |
C≤0.05 |
N≤0.025 |
H≤0.005 |
O≤0.18 |
Nb2.0-3.0 |
Inspection;
UT, Eddy Current Testing, Water Pressure Testing, Airtight Testing
Applications
Zirconium is widely used in a variety of corrosion-resistant process equipment, including pressure vessels, heat exchangers, pipes, troughs, shafts, mixers, and other mechanical equipment as well as valves, pumps, sprayers, trays, designers, and tower linings. Only about half are processed into zirconium metal (or sponge zirconium) and further processed into zirconium alloys for use in nuclear fuel assemblies or industrial applications. From the processing difficulty level, technology, and other aspects, the zirconium metal industry chain is the most high-end.
Military use
Adding one-thousandth of zirconium to steel can significantly increase its hardness and strength. Zirconium containing armor steel, artillery forging steel, stainless steel, and heat-resistant steel are important materials for manufacturing weapons such as armored vehicles, tanks, artillery, and bulletproof plates.
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