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EN AB-46400   << back

Chemical designation: EN AB-AlSi9Cu1Mg
Previous Swedish standard: Type -
 
Chemical composition:  
  Min % Max %
 Si 8,3 9,7
 Fe - 0,7
 Cu 0,8 1,3
 Mn 0,15 0,55
 Mg 0,30 0,65
 Cr - -
 Ni - 0,20
 Zn - 0,8
 Pb - 0,10
 Sn - 0,10
 Ti 0,10 0,18
General description of properties:
Universal alloy with very good castability. Little tendency towards forming surface defects and internal cavaties due to shrinkage on solidification. Good machinability and weldability.

Suitable applications:
For wide range of applications. Also for complicated and thin-wall castings.

Heat treatment:

Solution heat treated at 520-530ºC for 3-6 hours followed by quenching in water and artificial ageing at 150-175ºC for 15-5 hours.
Others each max 0,05%
and total max 0,15%
 

Casting characteristics, S-Sand cast, K-Chill cast:
Solidification
range, ºC, about
Casting
temperature
ºC, about
 Fluidity Resistance to hot
tearing
Shrinkage
%, about
Pressure
tightness
600-550 680-750 Good Good S: 1-1,1
K: 0,9-1,1
 Good

Mechanical properties of separately untreated cast test bars:
Tensile strength,
Rm, MPa, min.
Proof stress
Rp0,2, MPa, min.
Elongation
A50, %, min.
Brinell hardness
HBS, min.
S: 135
K: 170
S: 90
K: 100
S: 1
K: 1
S: 60
K: 75

Mechanical and physical properties:
Density
Kg/Dm³
Strength Machinability Weldability Resistance to
corrosion
2,65 Excellent Good Good Poor
 
Decorative
anodizing
Ability to be
polished
Linear thermal
expansion
293-373ºK, ºK¯¹
Electrical
conductivity
MS/m
Thermal
conductivity
W/mºK
Not recom. Poor 21 x 10¯6 16 – 22 130 - 150
 

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