| Echnique | Zirconium Welded Tube, Zirconium Seamless Tube |
| Grade | R60702, R60704, R60705 |
| Standard | ASTM B523, ASTM B353, ASTM B658 |
| Size | OD(0.5-200)mm*WT(0.1-20)mm*L(MAX 20000)mm |
| Shape | Round, Square |
| Surface | Polished or According To Customer's Requirement |
| Processing | Hot Rolling, Cold Rolling, Drawing, Extruded |
Chemical Composition
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
Mechanical Properties
Material
State
Rm (≥)/MPa
Rp0.2 (≥)/MPa
A50mm (≥)/%
Zirconium 702
Annealed
379
207
16
(UNS R60702)
Zirconium 704
Annealed
413
241
14
(UNS R60704)
Zirconium 705
Annealed
552
379
16
(UNS R60705)
The following are some characteristics of zirconium tubes:
1. High melting point: The melting point of zirconium is very high, about 1852°C, which allows zirconium tubes to be used in operations at high temperatures.2. Corrosion resistance: Zirconium has good resistance to many chemicals, including acids, alkalis, and salts, so it can be used to handle a variety of corrosive substances.
3. Anti-oxidation: At high temperatures, many metal materials will oxidize rapidly, but zirconium can form a protective oxide film at high temperatures, thus having good oxidation resistance.
4. Low pollution: Due to the good chemical stability of zirconium, it does not easily react with other substances, so it can reduce the introduction of impurities and improve product purity.
5. Good thermal conductivity: Zirconium has a high thermal conductivity, allowing the zirconium tube to effectively transfer heat during the heat exchange process.
6. Good mechanical properties: Zirconium has good strength and hardness, which makes the zirconium tube have good stability when subjected to high pressure or mechanical stress.
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