Hafnium Tube

Material

Hf–01, Hf-1 (Pure hafnium)
Hf-1, Hf-2 (Crystal hafnium)

Overview

High purity hafnium, also known as crystalline hafnium, is a silver-gray metal crystal with a metallic luster. Hafnium is found in small amounts in the earth’s crust and often coexists with zirconium. Hafnium has high temperature resistance, corrosion resistance, oxidation resistance, easy processing, rapid heat-absorbing and heat-releasing properties, and is used as atomic materials, alloy materials, high temperature resistant materials, electronic materials, etc.

Application

(1)Electronic material
Hafnium can be used as the cathode of X-ray tubes because of its tendency to emit electrons.
(2)Atomic energy
Hafnium metal has excellent welding performance, processing performance, high temperature resistance and corrosion resistance, thus becoming an important material in the atomic energy industry.
(3)Chemical field
Hafnium has a strong anti-volatilization, commonly used as an additive for hydraulic oil, to prevent the volatilization of hydraulic oil in high-risk operations.
(4)Alloy material
Hafnium has the properties of ductility, oxidation resistance and high temperature resistance, and is also a good alloy material.

Chemical composition (wt%)

Pure hafnium

Material Hf Al C Cr Cu H Fe Mo Ni Nb
Hf-01 Bal. ≤0.01 0.015 0.010 0.010 0.0025 0.050 0.002 0.005 0.010
Hf-1 Bal. ≤0.05 0.025 0.050 – 0.0050 0.075 – – –
Material N O Si W Sn Ti Ta U V Zr
Hf-01 0.010 ≤0.010 0.010 0.020 0.005 0.010 0.015 0.001 0.005 3.5
Hf-1 0.015 ≤0.130 0.050 – – 0.050 0.015 – – 3.5

Physical property

Density: 13.31g/cm³
Melting point: 2230℃

Melting

Electron-beam melting and VAR.

Available Process

(1)Cold worked, recrystallization annealing
(2)Cold worked, recrystallization annealing, polished (MP, EP etc.)

Tube sizes

OD: 8.0 – 30.0mm
WT: 0.15 – 4.0mm

Service

  • ◎ Precision cutting
  • ◎ Tube surface treatment, like ID surface super mirror polishing, best level could reach Ra0.0015um
  • ◎ Tube deep processing, like coiling, bending, end forming, body forming, laser processing, various needles processing, built to drawing and sample, etc.