Trimet Prag s.r.o.

EN AB-46500 << back

Chemical designation: EN AB-AlSi9Cu3(Fe)(Zn)
Previous Swedish standard: Type 4252

Chemical composition:

	Min %	Max %
Si	8,0	11,0
Fe	0,6	1,2
Cu	2,0	4,0
Mn	-	0,55
Mg	0,15	0,55
Cr	-	0,15
Ni	-	0,55
Zn	-	3,0
Pb	-	0,35
Sn	-	0,25
Ti	-	0,20

General description of properties:
Universal alloy with very good castability, particularly suitable for pressure die casting. Little tendency towards forming surface
defects and internal cavities by shrinkage on solidification. Very good machinability

Suitable applications:
For wide range of applications. Also for complicated and thin-wall castings. Especially suitable for highly stressed pressure die castings.

Heat treatment:
Not usually age hardened

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
600-490	650-700	Good	Good	05 - 0,8	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.
240	140	<1	80

Mechanical and physical properties:

Density Kg/Dm³	Strength	Machinability	Weldability	Resistance to corrosion
2,75	Good	Good	Poor	Poor

Decorative anodizing	Ability to be polished	Linear thermal expansion 293-373ºK, ºK¯¹	Electrical conductivity MS/m	Thermal conductivity W/mºK
Not recom.	Satisfact.	21 x 10¯6	13 – 17	110 - 120