Advanced Metals
Zirconium 704
Comparing to Zirconium 702, Zirconium 704 (Zr704) contains 1.0-2.0% Tin (Sn), and higher Fe and Cr content from 0.2% to 0.4%. These differences can improve its strength, corrosion resistance performance and thermal conductivity of oxide passive layer, and reduce susceptibility of surface in different corrosion environments.
Zirconium 704 contains a small amount iron and chromium. This is similar to the zirconium alloys used in nuclear industry. In most chemical media, especially in high temperature, high pressure water and steam medium, Zirconium 704 exhibits more superior performance.
Chemical composition (wt%, max.)
|
Grade |
UNS |
Zr+Hf |
Hf |
Fe+Cr |
Sn |
H |
N |
C |
O |
|
Zr704 |
R60704 |
≥97.5 |
4.5 |
0.2-0.4 |
1.0-2.0 |
0.005 |
0.025 |
0.05 |
0.18 |
Grade
Condition
Tensile strength
Yield strength
Elongation in 50 mm
Zr704
Annealed
415
240
14
(MPa, min.)
(MPa, min.)
(%, min.)
Available forms
● Ingot
● Tube and pipe
● Forged ring, disc
● Rod and bar
● Plate and sheet
● Strip and foil
● Wire, welding wire
● Pipe fittings
● Fasteners
● Custom-made
Specification
▲ ASTM B493/493M - Forging
▲ ASTM B550/550M - Rod, wire
▲ ASTM B551/551M - Plate, sheet
▲ ASTM B658/B658M - Tube, pipe
▲ ASTM B523/B523M - Tube, pipe
▲ ASTM B653 / B653M - Pipe fittings
▲ AWS A5.24/A5.24M - Welding wire
▲ ASTM B898 - Clad metal
Characteristics of Zirconium 704
Higher strength than Zr702
Excellentcorrosion resistance in high temperature and pressure
Highly anisotropic
Typical application
Chemical Processing Industry
Nuclear Power Plant
