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Alloy 231 in accordance with DIN EN 1706 : 06/98

Aluminum die casting alloys

Chemical name EN AC – AlSi12Cu1 (Fe)
Numerical name EN AC – 47100

 

 

 

 

 

Chemical composition

Si

10,5 – 13,5 %

Fe 1,3 %
Cu 0,7 - 1,2 %
Mn 0,55 %
Mg 0,35 %
Cr 0,10 %
Ni 0,30 %
Zn 0,55 %
Pb 0,20 %
Sn 0,10 %
Ti 0,20 %
other additions single 0,05 %, total 0,25 %

Mechanical characteristics

Tensile strength Rm min. 240 Mpa
Yield Rp0,2 min. 140 Mpa
Elongation at break A50mm min. < 1 %
Brinell hardness min. 70 HBS
Fluidity A
Hot-cracking resistance A
Pressure tightness C
Corrosion resistance C
Machinability C

 

 

Uses

Tees for complex, thin-walled, pressure-tight, warm and vibration-fracture-critical stressed casting and die casting parts with higher elongation.

Applications

Thin-walled housing, ribbed body, difficult mounting blocks and slabs, etc.

Main Features

Eutectic alloy with excellent mold filling capacity, high hot cracking resistance and excellent castability, excellent weldability, good machinability.