Zinc-titanium

Wide range of applications in the construction industry


Zinc-titanium is a modern material produced of the highest purity zinc SHG 99,995% with additions of copper and titanium. Modern technology guaranties very good physical and mechanical properties and allows for wide range of application in building industry.

NATURAL – the metallic and shining surface which will gradually turn to a natural light grey zinc patina in response to localised atmospheric conditions.

 


PRE-AGED GREY – a matt, light grey patina surface created as a result of chemical processes. It is recommended to use pre-aged material on elements such as facades.

 


PRE-AGED CARBON​ – a graphite-black surface developed using a complex technological process. The contrasting dark patina provides a distinctive identity whilst harmonising with other building materials such as slate.

 

 

Zinc-titanium – Features

Parameter PN-EN 988 Requirements ZM SILESIA  Requirements
Chemical composition
Zinc  99,995%  99,995%
Cooper  0,08 – 1,0%  0,08 – 0,2%
Titan  0,06 – 0,2%  0,06 – 0,1%
 Aluminium  < 0,015%  < 0,015%
Standard product dimensional tolerances
Thickness (sheets & strips) ±0,03 mm +0,00/ -0,03 mm
Width (sheets & strips) +2/ -0 mm +1,0/ -0,0 mm
Length +10/-0 mm +3,0/-0,0 mm
Rectilinearity < 1,5 mm/m < 1,5 mm/m
Flatness < 2,0 mm < 2,0 mm
Mechanical properities
Lower yield point Rp 0,2% > 100 N/mm² 100 – 150 N/mm²
Tensile strength (Rm) > 150 N/mm² 150 – 180 N/mm²
Elongation at break (A50) > 35% > 40%
Bending test No cracks at the bend No cracks at the bend
Constant elongation < 0,1% < 0,1 %
Physical properties
Density 7,2 g/cm³
Melting point 420°C
Recrystalization temperature > 300°C
Thermal expansion linear coefficient 0,022 mm/(m*K)


Zinc-titanium advantages:

  • durable for over 80 years,
  • corrosion resistant,
  • does not require maintenance,
  • may be easily joined and formed,
  • excellent for soldering,
  • light and non-flammable,
  • 100% recyclable.

Creating a protective layer under the influence of atmospheric conditions, that is typical for zinc, causes zinc-titanium has incredibly long-life use and requires practically no maintenance. On initially shining, rolled surface appears patina that is a thin, measuring some micrometers, well adherent protective layer consisting of oxides and basic zinc carbonates.

Zinc-titanium is produced according to EN 988 standard, in two sorts of different surface finish:

  • BRIGHT-ROLLED – metallic and shining surface, which will gradually turn into light grey mat patina resulting from the influence of atmospheric conditions,
  • PRE-AGED – mat, light grey patina surface created as a result of chemical reaction in a technological process. It is recommended to use pre-aged material on exposed elements like façades.

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