Re : tantalum niobium products and alloys /Shenzhen Sunrise Metal Industry Co.,Ltd

Zirconium is a reactive metal; it has a high affinity for oxygen and as such forms a protective oxide film that enables it to perform well in a wide variety of conditions.Shenzhen Sunrise Metal Industry Co.,Ltd

TEL：0086-0755-27185042 or 0086-15919982500
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Atomic No. 40
Atomic Wt. 91.22
Specific Gravity 6.51
Melting Point 1852˚C
Coefficient of Thermal Expansion 5.8 X 10-6/°K
Specific Heat 0.066 cal/g/°K
Ultimate Tensile Strength (Room Temperature, Annealed) 55 ksi
Yield Tensile Strength (Room Temperature, Annealed) 30 ksi
Poisons Ratio 0.35
Modulus of Elasticity 14.4 X 106 psi
Stress Relief Temperature 565˚C

DUE TO ITS EXCELLENT FABRIC-ABILITY AND DUCTILITY, THIS MATERIAL IS READILY AVAILABLE IN ALL DESIRED MILL PRODUCT FORMS.

PHYSICAL PROPERTIES

CHEMICAL COMPOSTION

Tungsten: 500 ppm
Halnium: 200 ppm
Tantalum: 1000 ppm
Zirconium: 0.8% 1.2%
Carbon: 200 ppm
Oxygen: 300 ppm
Nitrogen: 100 ppm
Hydrogen: 15 ppm

It was discovered that the addition of 1% zirconium to niobium greatly improved the creep strength over the soft pure metal. Thus Nb-1Zr became the replacement for pure niobium in applications requiring the chemical resistance of niobium and a material with high melting temperature. In addition to greatly increasing the strength of pure niobium at higher temperatures, Nb-1Zr also has low thermal nuclear capture cross-section properties. Therefore, this alloy has been closely associated with the nuclear industry, which requires specified elevated temperature strength in the range of 1800º F to 2200º F. Because of the increasing need for better strengths, as technology has advanced, Nb-1Zr has been replaced by alloys such as C-103, which has greater strength and thus improved reliability, but still retains all the desirable characteristics of Nb-1Zr. Nb-1Zr has the advantage of being less expensive than the higher strength alloys, and can be used in applications where a high temperature material is needed with low loads such as a load free thermal shield. Shenzhen Sunrise Metal Industry Co.,Ltd

TEL：0086-0755-27185042 or 0086-15919982500
Website：http://www.sunriseta.com
E-Mail：sales@sunriseta.com