ASTM B523 Zirconium Zr 702 Tubo
Zirconium tubes and zirconium alloys tubes have a series of characteristics, such as low density, high specific strength, corrosion resistance, irradiation resistance, excellent wear resistance, excellent processability, non-toxic, non-magnetic, small cross-section of thermal neutron absorption.
It is popular used in those files:(1) Glass coating &Watch coating (2) Ocean and space equipments(3) Medical use equipment(4) Sewage disposal;etc
- Descripción
- Características técnicas
- Chemical Composition & Mechanical Propertities
- Indagación
Item Name
ASTM B523 Zirconium Zr 702 Tubo
Material
pure zirconium and zirconium alloy
Estándar
ASTM B523
Tipo
R60702, R60703, R60704, R60705, R60706
Tamaños
OD:6.00-100.00milímetro,WT:0.20-10.00milímetro
Aplicación
1.Chemical processing, medical instruments 2.Aerospace,Industry,Navigation,Smelting,Chemical plants 3.Plate heat exchanger, and condensers 4.Chemical and medical equipment.
In view of the fact that zirconium and zirconium alloys have low density, high specific strength, corrosion resistance, radiation resistance, excellent wear resistance, excellent processing performance, non-toxic, non-magnetic, compared with traditional stainless steel, copper, níquel, titanium and other metal alloys, zirconium and zirconium alloys have excellent corrosion resistance, which can resist the corrosion of most organic acids, inorganic acids, strong bases and some molten salts. In wastewater treatment, Procesamiento de alimentos, strong acid production industry, it is mainly used in equipment and components with high requirements for corrosion resistance, such as reactor, acid resistant pump, heat pump, heat exchange pipe, immersion tank, acid resistant impeller, valve, agitator, nozzle and container lining. The zirconium equipment and devices used by American chemical enterprises have been in use for more than 25 years without obvious corrosion damage. The conversion rate is as high as 85% ~ 90%, which greatly improves the production efficiency of enterprises. In the process of deep-sea exploration, zirconium alloy can not only withstand the erosion of sea water and sand, seawater corrosion and fluid friction and wear, but also adapt to the alternating temperature environment of - 200 ~ 200 ℃. This is due to the low thermal expansion coefficient of zirconium, which can be stably and continuously used. The absorption cross section is small
Composición química
Grado | Element composition(%)< | ||||||||
Zr+Hf | Hf | Fe+Cr | Sn | H | N | C | Nb | O | |
R60702 | 99.2 | 4.5 | 0.20 | -- | 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 | 0.18 |
Mechanical property diameter:
Material | State | Micrómetro(≥)/Mpa | Rp0.2(Mpa) | A50mm(≥)/% |
Circonio 702
(UNS R60702) |
annealed | 379 | 207 | 16 |
Circonio 704
(UNS R60704) |
annealed | 413 | 241 | 14 |
Circonio 705
(UNS R60705) |
annealed | 552 | 379 | 16 |