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 | SilesiaZINC Requirements |
| Chemical composition | ||
| Zinc | 99,995% | 99,995% |
| Cooper | 0,08 – 1,0% | 0,08 – 0,2% |
| Titan | 0,06 – 0,2% | 0,07 – 0,12% |
| Aluminium | < 0,015% | < 0,015% |
| Standard product dimensional tolerances | ||
| Thickness (sheets & strips) | ±0,03 mm | +0,01/ -0,03 mm |
| Width (sheets & strips) | +2/ -0 mm | +1,0/ -0,0 mm |
| Length | +10/-0 mm | +2,0/-0,0 mm |
| Rectilinearity | < 1,5 mm/m | < 2,0 mm/m |
| Flatness | < 2,0 mm | < 2,0 mm |
| Mechanical properities | ||
| Lower yield point Rp 0,2% | > 100 N/mm² | 110 – 150 N/mm² |
| Tensile strength (Rm) | > 150 N/mm² | 152 – 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% | < 0,08 % |
| 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:
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:
