Zirconium / Zr 702

Nombres alternativos y comerciales
Zr 702, Zirkonium
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Description

Zirconium has a passivating oxide layer (ZrO2), which renews itself on contact with aqueous media keep telling yourself. Among other advantages, features zirconium Zr702 resistance to almost all organic acids, mineral acids and alkaline solutions. Zirconium 702 is good for welding and fully recyclable. At low temperatures, it is also very ductile.

Related Standards

Equivalent Materials

Los datos sobre este material han sido proporcionados por Hempel Special Metals.

A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

Ashby charts

Propiedades

General

PropertyTemperatureValue

Densidad

23.0 °C

6.51 g/cm³

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Aplicaciones térmicas

PropertyValue

Temperatura de fusión

1852 °C

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Chemical properties

PropertyValueComment

Carbono

0.05 %

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max.

Circonio

99.2 %

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min., Zr+Hf

Cromo

0.2 %

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max., Cr + Fe

Hafmio

4.5 %

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max.

Hidrógeno

5E-3 %

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max.

Hierro

0.2 %

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max., Cr + Fe

Nitrógeno

0.03 %

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max.

Oxígeno

0.16 %

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max.

Technological properties

Property
Application areas

Zr702 zirconium is used in chemical plants in valves, pipes, heat exchangers and pumps. These systems are, for example, apparatus for the production of acetic acid, hydrochloric acid or urea. Even in the medical field Zr702 is used because it is biocompatible and shows no toxic effects. Another application of zirconium 702 is the nuclear technology.

Welding

Matching welding consumables should be used. Quality 4.8 of welding gases (eg argon with a purity of 99.998%) are recommended.