Silafont® – an infinite wealth of properties
Silafont emulates flowing water, that flows continually to the sea, advances at any angle, washing around every stone and every shape in its way. Homogeneous and light in the very same way that Silafont fills the cavities in the mould.

Silafont®-09 [ AlSi9 ]
Areas of useLarge apparatus parts, fittings, cars, lighting, domestic appliances, air conditioning, automotive engineering, foodstuffs industry, mechanical engineering, shipbuilding, defence engineering.
Distinguishing characteristics
Flangeable high pressure die casting alloy with very good casting properties, even with thick-walled designs. Very good corrosion resistance to weathering and water.
Alloy denomination
Chemical denomination: AlSi9 | Numerical denomination: 44 400

Fan vane
Silafont-09
High pressure die casting
410 × 20 × 55 mm, weight: 0.6 kg

Heating plate for espresso machine
Silafont-09
High pressure die casting, flanged
138 × 91 × 42 mm, weight: 0.71 kg
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 | F | 120 – 180 | 240 – 280 | 4 – 8 | 55 – 80 |
Silafont®-13 [ AlSi11 ]
Areas of useArchitecture, domestic appliances, air conditioning, foodstuffs industry, mechanical engineering.
Distinguishing characteristics
Near eutectic AlSi universal alloy with average mechanical properties, high elongation and impact toughness. Outstanding castability, very good corrosion resistance, outstanding weldability. Good sheen after mechanical polishing.
Alloy denomination
Chemical denomination: AlSi11

Conductor anchoring
Silafont-13
Low-pressure die casting, welded design
820 × 250 × 370 mm, weight: 5.6 kg

Cross-flow radiator
Silafont-13
Gravity die casting, welded design with wrought alloy
450 × 410 × 110 mm, weight: 4.5 kg
Casting method | Treatment state | Yield tensile strength Rp0,2 [N/mm2] | Ultimate tensile strength Rm [N/mm2] | Elongation A [%] | Brinell hardness HBW |
---|---|---|---|---|---|
Sand casting | F | 70 – 120 (70) | 150 – 210 (150) | 7 – 13 (6) | 45 – 60 (45) |
Sand casting | O | 60 – 120 (70) | 150 – 210 (150) | 9 – 15 (8) | 45 – 60 (45) |
Gravity die casting | F | 80 – 150 (80) | 170 – 240 (160) | 7 – 16 (6) | 45 – 60 (45) |
Gravity die casting | O | 60 – 120 (60) | 180 – 240 (160) | 10 – 18 (10) | 45 – 65 (45) |
Silafont®-20 [ AlSi11Mg ]
Areas of useArchitecture, cars, heavy casting, automotive engineering, foodstuffs industry, mechanical engineering.
Distinguishing characteristics
Near eutectic, heat-treatable AlSi alloy with high mechanical properties. Outstanding corrosion resistance to weathering and water. Outstanding weldability. Good machinability after ageing. Silafont-20 dv offers particularly good ductility properties.
Alloy denomination
Chemical denomination: AlSi11Mg | Numerical denomination: 44 000

Base element for plate-type conveyor
Silafont-20
Low-pressure die casting, permanently modified
980 × 780 × 200 mm, weight: 18.5 kg

Motorbike front fork
Silafont-20
permanently modified
Low-pressure die casting
570 × 240 mm, weight: 4.5 kg
Casting method | Treatment state | Yield tensile strength Rp0,2 [N/mm2] | Ultimate tensile strength Rm [N/mm2] | Elongation A [%] | Brinell hardness HBW |
---|---|---|---|---|---|
Sand casting | F | 80 – 140 (70) | 170 – 220 (170) | 2 – 4 (1,5) | 50 – 60 (50) |
Sand casting | T6 | 120 – 300 (110) | 200 – 320 (200) | 1 – 3 (0,5) | 65 – 120 (55) |
Gravity die casting | F | 80 – 130 (80) | 180 – 230 (180) | 3 – 16 (3) | 55 – 75 (55) |
Gravity die casting | T6 | 125 – 320 (120) | 210 – 350 (210) | 4 – 15 (3) | 70 – 125 (70) |
Silafont®-30 [ AlSi9Mg ]
Areas of useFittings, cars, lighting, heavy casting, domestic appliances, air conditioning, automotive engineering, manufacture of engines, art casting, foodstuffs industry, mechanical engineering, shipbuilding, textile industry, defence engineering. Well suited to large and complicated castings.
Distinguishing characteristics
One of the most important AlSi casting alloys which can be aged, with very good casting properties and outstanding corrosion resistance. High strength values after artificial ageing. Excellent weldability, very good machinability.
Alloy denomination
Chemical denomination: AlSi9Mg | Numerical denomination: 43 300

Sound-deadening body for large diesel engines
Silafont-30, as-cast state
Sand casting, cast in two parts, welded
Ø 2300 × 1000 mm, weight: 900 kg

Intermediate flange for SF6 gearshift system
Silafont-30, artificially aged
Sand casting, pressure-sealed
Ø 560 × 270 mm, weight: 64 kg
Casting method | Treatment state | Yield tensile strength Rp0,2 [N/mm2] | Ultimate tensile strength Rm [N/mm2] | Elongation A [%] | Brinell hardness HBW |
---|---|---|---|---|---|
Sand casting | F | 80 – 140 (80) | 160 – 220 (150) | 2 – 6 (2) | 50 – 70 (50) |
Sand casting | T6 | 200 – 310 (180) | 250 – 330 (220) | 2 – 5 (2) | 80 – 115 (75) |
Gravity die casting | F | 90 – 150 (90) | 180 – 240 (180) | 2 – 9 (2) | 60 – 80 (60) |
Gravity die casting | T64 | 180 – 210 (140) | 250 – 290 (220) | 6 – 10 (3) | 80 – 90 (80) |
Gravity die casting | T6 | 210 – 310 (190) | 290 – 360 (240) | 4 – 7 (2) | 90 – 120 (90) |
Silafont®-36 [ AlSi10MnMg ]
Areas of useArchitecture, fittings, cars, lighting, aircraft, domestic appliances, air conditioning, automotive engineering, foodstuffs industry, mechanical engineering, shipbuilding, defence engineering, welded designs.
Distinguishing characteristics
High pressure die casting alloy with excellent castability, very good elongation in as-cast state, maximum elongation after heat treatment. Very good corrosion resistance, good polishability, very good machinability, very good weldability.
Alloy denomination
Chemical denomination: AlSi9MgMn | Numerical denomination: 43 500

Traverse
Silafont-36
High pressure die casting
1020 × 690 × 280 mm, weight: 10,3 kg

Shock Tower
Silafont-36
High pressure die casting
420 × 360 × 330 mm, weight: 4,3 kg
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 | F | 120 – 150 | 250 – 290 | 5 – 11 | 75 – 95 |
High press. die casting | T5 | 155 – 245 | 275 – 340 | 4 – 9 | 80 – 110 |
High press. die casting | T4 | 95 – 140 | 210 – 260 | 15 – 22 | 60 – 75 |
High press. die casting | T6 | 210 – 280 | 290 – 340 | 7 – 12 | 90 – 110 |
High press. die casting | T7 | 120 – 170 | 200 – 240 | 15 – 20 | 60 – 75 |
Silafont®-38 [ AlSi9MnMgZn ]
Areas of useWeight reduced car body structures for vehicles, mechanical engineering
Distinguishing characteristics
Casting alloy with very high mechanical properties after T6 treatment including a air queching for reduced distorsion. Very high yield strenght combined with high values of elongation for crash relevant structural die castings. Silafont-38 substitutes sheet designs in vehicle design and offers high cost and weight reduction.
Alloy denomination
Chemical denomination: AlSi9MgMnZn

Corner reinforcement for BIW, Silafont-38 T6/T7 as test, HPDC with 1,5 – 2,5 mm wall thickness Weight 0,23 kg
Casting method | Treatment state | Quenching cooling | YTS Rp0,2 [N/mm2] | UTS Rm [N/mm2] | Elongation A [%] |
---|---|---|---|---|---|
HPDC | F | 140 - 160 | 270 - 300 | 3 – 7 | |
HPDC | T6 | Water | 230 - 270 | 300 - 345 | 6 - 9 |
HPDC | T6 | Air | 180 - 200 | 250 - 275 | 8 - 10 |
Silafont®-70 [ AlSi12CuNiMg ]
Areas of useCars, automotive engineering. Parts which are subject to high strength loads at high temperatures.
Distinguishing characteristics
Very high ultimate tensile strength, yield tensile strength and hardness values are achieved through full artificial ageing. Good mechanical properties at higher temperatures. Good machining characteristics. Reduced corrosion resistance. Good running and sliding properties, wear resistant.
Alloy denomination
Chemical denomination: AlSi12CuNiMg | Numerical denomination: 48 000

Housing for screw pumps
Silafont-70, artificially aged
Sand casting
Ø 200 × 700 mm, weight: 12.0 kg

Cylinder housing with cylinder head
Silafont-70, artificially aged
Gravity die casting
290 × 175 × 170 mm, weight: 5.4 kg
Casting method | Treatment state | Yield tensile strength Rp0,2 [N/mm2] | Ultimate tensile strength Rm [N/mm2] | Elongation A [%] | Brinell hardness HBW |
---|---|---|---|---|---|
Sand casting | F | 120 – 170 (110) | 130 – 180 (120) | 0,5 – 1,5 (0,5) | 80 – 90 (80) |
Sand casting | T6 | 200 – 300 (190) | 220 – 300 (200) | 0,3 – 1,0 (0,3) | 130 – 160 (130) |
Sand casting | T5 | 140 – 190 (140) | 160 – 190 (160) | 0,2 – 1,0 (0,2) | 80 – 90 (80) |
Gravity die casting | F | 190 – 260 (180) | 200 – 270 (190) | 1,0 – 2,5 (0,5) | 90 – 105 (90) |
Gravity die casting | T6 | 320 – 390 (280) | 350 – 400 (300) | 0,5 – 2,0 (0,5) | 135 – 160 (135) |
Gravity die casting | T5 | 185 – 210 (150) | 200 – 230 (180) | 0,5 – 2,0 (0,5) | 90 – 110 (90) |