Alufont

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.

Alufont-47 Alufont-48 Alufont-52 Alufont-60
Note technical information!

Alufont®-47 [ AlCu4TiMg ]

Areas of use
High 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



Composition [ % of mass ]

SiFeCuMnMgZnTi
0,150,154,2 – 5,00,100,20 - 0,350,070,15 – 0,25
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 castingT4220 – 280 (180)300 – 400 (240)5 – 15 (3)90 – 115 (85)
Sand castingT6240 – 350 (220)350 – 420 (280)3 – 10 (1)95 – 125 (90)
Gravity die castingT4220 – 300 (200)320 – 420 (280)8 – 18 (5)95 – 115 (90)

Alufont®-48 [ AlCu4TiMgAg ]

Areas of use
Cars, 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



Composition [ % of mass ]

SiFeCuMnMgZnTiother
0,050,104,0 – 5,00,01 – 0,50,15 – 0,350,050,15 – 0,350,4 – 1,0 Ag
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 castingT64200 – 270 (180)370 – 430 (320)14 – 18 (7)105 – 120 (100)
Sand castingT6410 – 450 (320)460 – 510 (380)3 – 7 (2)130 – 150 (125)
Gravity die castingT6410 – 460 (340)460 – 510 (440)5 – 8 (3)130 – 150 (130)

Alufont®-52 [ AlCu4Ti ]

Areas of use
All 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



Composition [ % of mass ]

SiFeCuMnMgZnTi
0,150,154,2 – 5,20,01 – 0,50,030,070,15 – 0,25
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 castingT64210 – 240 (180)300 – 360 (260)8 – 15 (4)90 – 100 (90)
Sand castingT6300 – 420 (280)400 – 475 (350)3 – 4 (2)125 – 145 (120)
Gravity die castingT64210 – 250 (190)360 – 400 (300)12 – 20 (10)90 – 120 (90)
Gravity die castingT6310 – 400 (300)420 – 475 (400)7 – 16 (4)130 – 145 (130)

Alufont®-60 [ AlCu5NiCoSbZr ]

Areas of use
Manufacture 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



Composition [ % of mass ]

SiFeCuMnMgZnTiother
0,200,304,5 – 5,20,1 – 0,30,100,100,15 – 0,301.3 – 1.7 Ni
0.10 – 0.40 Co
0.10 – 0.30 Zr & Sb
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 castingT7145 - 165 (140)180 - 220 (180)1 - 1.5 (1)85 - 95 (85)
Sand castingO160 - 180 (160)180 - 200 (180)1 - 1,5 (1)80 - 90 (80)