Unifont® – high strength and regenerative powers
Unifont alloys offer high strength without heat treatment and outstanding casting properties, but limited shaping properties. They are used for components which are often large and difficult, especially in circumstances which require high strength levels: in mechanical engineering, domestic appliances and medical technology. Thanks to their self-hardening character, they regenerate themselves after overloads, just like Castadur.
Nature's role model: the water lily which closes its petals for protection at night and only opens them again when the sun rises.
Nature's role model: the water lily which closes its petals for protection at night and only opens them again when the sun rises.
Unifont®-90 [ AlZn10Si8Mg ]
Areas of useHeavy casting, mechanical engineering, model/mould construction, optics/furniture, textile industry, hydraulic casting, domestic appliances, defence engineering.
Distinguishing characteristics
Self-ageing alloy with very good strength and elongation properties, especially in low-pressure die casting. Very good mechanical polishability and machinability. Good weldability. Aged again following e. g. thermal loading from welding. Casting properties similar to Silafont-30.
Alloy denomination
Chemical denomination: AlZn10Si8Mg | Numerical denomination: 71 100
Base plate for film cutting equipment
Unifont-90
Sand casting, electrically conductive, hard anodised
500 × 500 × 170 mm, weight: 4.8 kg
Weft holder
Unifont-90
Gravity die casting
320 × 70 × 55 mm, weight: 0.5 kg
Processing
Data Sheet by REACH
Mechanical properties
| Casting method | Treatment state | Yield tensile strength Rp0,2 [N/mm2] | Ultimate tensile strength Rm [N/mm2] | Elongation A [%] | Brinell hardness HBW |
|---|---|---|---|---|---|
| Sand casting | T1 | 190 – 230 (170) | 220 – 250 (180) | 1 – 2 (1) | 90 – 100 (90) |
| Gravity die casting | T1 | 220 – 250 (220) | 280 – 320 (230) | 1 – 4 (1) | 100 – 120 (95) |
Unifont®-94 [ AlZn10Si8Mg ]
Areas of useCars, automotive engineering, mechanical engineering, optics/furniture.
Distinguishing characteristics
Self-ageing high pressure die casting alloy for high pressure die casting with high compression strength, but not with static tensile strength.
Alloy denomination
Chemical denomination: AlZn10Si8Mg
Bearing cores for vibration damper
Unifont-94
High pressure die casting, rubber-metal compound
Ø 45 – 80 mm, height: 40 – 123 mm, weight: 78 – 450 g
Table bracket for seats in aircraft
Unifont-94
High pressure die casting, painted
310 × 65 × 18 mm, weight: 0.16 kg
Application
Processing
Data Sheet by REACH
Mechanical properties
| Casting method | Treatment state | Yield tensile strength Rp0,2 [N/mm2] | Ultimate tensile strength Rm [N/mm2] | Elongation A [%] | Brinell hardness HBW |
|---|---|---|---|---|---|
| High press. die casting | T1 | 230 – 280 | 300 – 350 | 1 – 4 | 105 – 120 |