Alufont® – the ultimate strength for lightweight design
This alloy's outstanding mechanical properties make it a serious alternative to steel. It is easy to weld and excellent to machine, and it can be used wherever parts are subject to high force and load levels. Its low weight also makes it ideal for elements that have to be moved: in motorsport, in machines or for example as a hinged element for telescopic lifting platforms.
As with crystals, these alloys have the structure of their joints to thank for their strength.
As with crystals, these alloys have the structure of their joints to thank for their strength.
Alufont®-47 [ AlCu4TiMg ]
Areas of useHigh loaded casts of general purposes, if corrosion is not an issue. Automotive engineering, mechanical and defence engineering
Distinguishing characteristics
Aluminium casting alloy for warm and natural aging. Very high values of crack resistance after T4. Outstanding machinability, very good polishing properties. Tendency of stress corrosion in the T6 state
Alloy denomination
Chemical denomination: AlCu4MgTi | Numerical denomination: 21000
Nockle for sport car
Alufont-47
Sand casting
280 × 210 × 160 mm, weight: 3,5 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 |
|---|---|---|---|---|---|
| Sand casting | T4 | 220 – 280 (180) | 300 – 400 (240) | 5 – 15 (3) | 90 – 115 (85) |
| Sand casting | T6 | 240 – 350 (220) | 350 – 420 (280) | 3 – 10 (1) | 95 – 125 (90) |
| Gravity die casting | T4 | 220 – 300 (200) | 320 – 420 (280) | 8 – 18 (5) | 95 – 115 (90) |
Alufont®-48 [ AlCu4TiMgAg ]
Areas of useCars, automotive engineering, manufacture of engines, mechanical engineering, defence engineering.
Distinguishing characteristics
Aluminium casting alloy with maximum ultimate tensile strength, yield tensile strength and hardness values, combined with outstanding elongation. Values may be varied greatly by modifying artificial ageing. Outstanding machinability, very good polishing properties, good weldability.
Alloy denomination
Chemical denomination: AlCu4TiMgAg
Star-shaped flange for rail vehicles
Alufont-48, artificially aged
Sand casting
Ø 700 × 100 mm, weight: 38 kg
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 | T64 | 200 – 270 (180) | 370 – 430 (320) | 14 – 18 (7) | 105 – 120 (100) |
| Sand casting | T6 | 410 – 450 (320) | 460 – 510 (380) | 3 – 7 (2) | 130 – 150 (125) |
| Gravity die casting | T6 | 410 – 460 (340) | 460 – 510 (440) | 5 – 8 (3) | 130 – 150 (130) |
Alufont®-52 [ AlCu4Ti ]
Areas of useAll kinds of highly loaded parts where corrosion properties are no obstacle. Cars, automotive engineering, manufacture of engines, mechanical engineering, textile industry, defence engineering.
Distinguishing characteristics
High-strength alloy for partial and artificial ageing. Outstanding machinability, very good polishing properties, good weldability, limited corrosion resistance. Mechanical values may be greatly varied by modifying artificial ageing.
Alloy denomination
Chemical denomination: AlCu4Ti | Numerical denomination: 21 100
Wheelset bearing housing for rail vehicle
Alufont-52, artificially aged
Sand casting
920 × 840 × 330 mm, weight: 62 kg
ICE II gearbox housing
Alufont-52, artificially aged
Sand casting
1800 × 850 × 250 mm, weight: 175 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 |
|---|---|---|---|---|---|
| Sand casting | T64 | 210 – 240 (180) | 300 – 360 (260) | 8 – 15 (4) | 90 – 100 (90) |
| Sand casting | T6 | 300 – 420 (280) | 400 – 475 (350) | 3 – 4 (2) | 125 – 145 (120) |
| Gravity die casting | T64 | 210 – 250 (190) | 360 – 400 (300) | 12 – 20 (10) | 90 – 120 (90) |
| Gravity die casting | T6 | 310 – 400 (300) | 420 – 475 (400) | 7 – 16 (4) | 130 – 145 (130) |
Alufont®-60 [ AlCu5NiCoSbZr ]
Areas of useManufacture of cylinder heads, defence engineering with high values of thermal alternating loads
Distinguishing characteristics
Heat treatable aluminium casting alloy with very high values of heat strength. Good creep resistance up to 200 °C.
Less corrosion resistance due Cu- and Ni-content.
Alloy denomination
Chemical denomination: AlCu5NiCoSbZr
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 |
|---|---|---|---|---|---|
| Sand casting | T7 | 145 - 165 (140) | 180 - 220 (180) | 1 - 1.5 (1) | 85 - 95 (85) |
| Sand casting | O | 160 - 180 (160) | 180 - 200 (180) | 1 - 1,5 (1) | 80 - 90 (80) |