Hafnium and Hafnium alloy Tubes and Pipes
Hafnium is a lustrous, silvery-gray transition metal. hafnium is so chemically similar to zirconium that separating the two elements is extremely difficult. Most commercial hafnium is produced as a byproduct of zirconium refining.Hafnium is remarkably corrosion-resistant and an excellent absorber of neutrons, allowing its use in nuclear submarines and nuclear reactor control rods, a critical technology used to maintain fission reactions. Control rods keep the fission chain reaction active but also prevent it from accelerating beyond control.Hafnium is used in electronic equipment such as cathodes and capacitors, as well as in ceramics, photography flash bulbs and light bulb filaments.
Specification and Standard for Hafnium and Hafnium alloy Tubes and Pipes | ||||||||||||
Products | Grades | Size | Standards | |||||||||
Hafnium and Hafnium alloy Tubes and Pipes | Zirconium 702 (R60702) Zirconium 704 (R60704) Zirconium 705 (R60705) Zircaloy-2 (R60802), Zircaloy-4 (R60804) | Seamless Tube OD: 0.6-89mm Welded Tube OD: ≥89mm Wall Thickness: ≥0.2mm Length: 100mm- 12000mm | ASTM B658/B658M ASTM B523/B523M ASTM B353/B353M | |||||||||
Nippon Titanium provides following testing for Hafnium and Hafnium alloy Tubes and Pipes | ||||||||||||
Chemical Cmposition | Mechanical properties test | Hutrasonic test | Flattening | Flaring | ||||||||
Eddy current test | Dimensional Inspect | Ultrasonic flaw detection | Bending test |
UNS | Grade | Chemical Component %, max | ||||||||||
Zirconium + Hafnium (min) | Hafnium | Iron + Chromium | Tin | Hydrogen | Nitrogen | Carbon | Niobium | Oxygen | ||||
R60702 | Zr702 | 99.2 | 4.5 | 0.2 max | - | 0.005 | 0.025 | 0.05 | - | 0.16 | ||
R60704 | Zr704 | 97.5 | 4.5 | 0.2-0.4 | 1.0-2.0 | 0.005 | 0.025 | 0.05 | - | 0.18 | ||
R60705 | Zr705 | 95.5 | 4.5 | 0.2 max | - | 0.005 | 0.025 | 0.05 | 2.0-3.0 | 0.18 |
Nippon Titanium Metals Corporation
1-5-8 HommachiDS Bld.7F,
Azuchimachi, Chuo-ku Osaka-shi,
Osaka, 541-0052 JAPAN
E-mail: info@nippontitanium.com
Sales Department
Tel: 81 (6) 6210-4293
Fax: 81 (6) 6210-4294
E-mail: sales@nippontitanium.com