Zirconium Seamless Tube 100% Eddy Current Ultrasonic Hydrostatic
Test Include
| Zirconium Tube Basic Information |
Standard
| ASTM B523/B523M-2012a |
Material Brand
| R60702, R60704(Tin Alloy) |
Size Range
| OD 10-219mm; WT 0.5-22mm; Length≤16000mm. |
Inspection
| Eddy Current Test; Ultrasonic Test; Hydrostatic Test; Size Test. |
Purpose
| Traditional petroleum, chemical equipment, and medical fields etc. |
Introduce:
Zirconium tube is an alloy tube shaped material made from metal
zirconium and other metals. Due to the excellent nuclear and
corrosion resistance properties of zirconium, zirconium alloy tubes
are often used as important nuclear materials for nuclear fuel
components and internal structures in water-cooled reactors. Pure
zirconium tubes are mainly used for manufacturing chemical
equipment, as they are expensive and require only a small amount of
material. The chemical composition and usage of commonly used
zirconium tubes are shown in the table, among which zirconium tin
alloy tubes are used in a large amount.
Process characteristics
1. Zirconium has a strong affinity for gases. It reacts with
oxygen, hydrogen, and nitrogen at approximately 200, 300, and 400
℃, respectively. At higher temperatures, the reaction is rapid, so
melting and heat treatment must be carried out in a vacuum furnace.
When Hot working is carried out in the atmosphere, proper
protective measures shall be taken and the operation time under
high temperature shall be shortened.
2. The friction coefficient between zirconium and the mold is
relatively high, making it easy to adhere to the surface of the
mold; The thermal effect of plastic deformation is significant, and
good lubrication conditions are required during processing.
3. Processing specifications have a sensitive impact on the
usability of products. Special attention should be paid to
controlling the cold processing and heat treatment processes before
the finished product to meet usage requirements.
4. The dimensional accuracy and surface quality requirements of
pipes are very high. Therefore, the process equipment should have
good accuracy, and the design and production of molds should be
advanced and reasonable.
Advantages:
Zirconium is a rare metal with astonishing corrosion resistance,
extremely high melting point, ultra-high hardness and strength, and
other characteristics
Chemical Requirements
|
Element | Composition, % |
UNS Grade Designation R60702 R60704 |
| Zirconium+hafnium, min | 99.2 | 97.5 |
| Hafnium, max | 4.5 | 4.5 |
| Iron+chromium | 0.2 max | 0.2-0.4 |
| Tin | / | 1.0-2.0 |
| Hydrogen, max | 0.005 | 0.005 |
| Nitrogen, max | 0.025 | 0.025 |
| Carbon, max | 0.05 | 0.05 |
| Niobium | / | / |
| Oxygen, max | 0.16 | 0.18 |
