Trimet Prag s.r.o.

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