Standard | ASTM B550, ASTM B351 |
Grade | R60702, R60704, R60705 |
Technique | Hot Rolled, Cold Rolling, Annealed |
Straight | Dia.: 1.0mm-5.0mm |
Coiled | Dia.: 0.05mm-3.0mm |
Length | Coils or Customers’ Requests |
Surface | Black, Pickled, Polished ( For Dia. >1mm ) |
Grade | Element composition (%) < | ||||||||
Zr+Hf | Hf | Fe+Cr | Sn | H | N | C | Nb | O | |
R60702 | 99.2 | 4.5 | 0.2 | -- | 0.005 | 0.025 | 0.05 | -- | 0.16 |
R60703 | 98 | 4.5 | -- | -- | 0.005 | 0.025 | -- | -- | -- |
R60704 | 97.5 | 4.5 | 0.20~0.40 | 1.0~2.0 | 0.005 | 0.025 | 0.05 | -- | 0.18 |
R60705 | 95.5 | 4.5 | 0.2 | -- | 0.005 | 0.025 | 0.05 | 2.0~3.0 | 0.18 |
R60706 | 95.5 | 4.5 | 0.2 | -- | 0.005 | 0.025 | 0.05 | 2.0~3.0 | 0.16 |
Material | State | Rm (≥)/MPa | Rp0.2 (≥)/MPa | A50mm (≥)/% |
Zirconium 702
(UNS R60702)
|
Annealed | 379 | 207 | 16 |
Zirconium 704
(UNS R60704)
|
Annealed | 413 | 241 | 14 |
Zirconium 705
(UNS R60705)
|
Annealed | 552 | 379 | 16 |
Physical properties:
- High melting point: The melting point of zirconium is approximately 1852°C.
- Corrosion resistance: Zirconium shows good corrosion resistance in many media, especially in acidic and alkaline environments.
- Mechanical properties: Maintain good mechanical strength and hardness at high temperatures.
Chemical Properties:
-Reactivity: Zirconium is stable in the air at room temperature, but will react with oxygen, nitrogen, hydrogen and other elements at high temperatures.
Neutron Transmission: Zirconium has a small absorption cross-section for thermal neutrons, making it very useful in nuclear reactor design.
main application:
Nuclear industry: Due to its small thermal neutron absorption cross-section, zirconium is widely used in the manufacture of fuel rod cladding and structural components of nuclear reactors.
Chemical industry: Zirconium and its alloys are widely used in chemical equipment and parts due to their strong corrosion resistance.
Metallurgical industry: As an alloying element, it improves the properties of other metals. For example, zirconium in titanium alloys can enhance the strength and corrosion resistance of the alloy.
Dental Materials: Zirconium is also used to make dental restorative materials, such as dental crowns, because of its good biocompatibility and aesthetics.
Eyewear industry: Due to its lightweight, corrosion-resistant and anti-allergenic properties, zirconium wire is also used to make durable and comfortable eyeglass frames.
production method:
The production of zirconium wire usually includes the following steps:
1. Extraction: Extract zirconium compounds from ores, usually zirconium oxide (ZrO2).
2. Smelting: Reduce zirconium oxide into metallic zirconium through reducing agents.
3. Wire drawing: After heating the metal zirconium to a certain temperature, it is drawn into filaments through a mold.
4. Surface Treatment: Surface treatment may be required to improve corrosion resistance and mechanical properties.
Precautions:
When handling and using zirconium wire, attention needs to be paid to its reactivity with certain substances, especially at high temperatures. In addition, zirconium powder or filaments may form flammable mixtures in the air, so appropriate safety measures should be taken during operation.
To sum up, zirconium wire is an important industrial material, and its unique physical and chemical properties make it widely used in many fields.
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