Trimet Prag s.r.o.

EN AB-43100 << back

Chemical designation: EN AB-AlSi10Mg(Cu)
Previous Swedish standard: Type 4253

Chemical composition:

	Min %	Max %
Si	9,0	11,0
Fe	-	0,55
Cu	-	0,30
Mn	-	0,55
Mg	0,25	0,45
Cr	-	-
Ni	-	0,15
Zn	-	0,35
Pb	-	0,10
Sn	-	-
Ti	-	0,15

General description of properties:
Near-eutectic alloy with excellent castability properties and good resistance to hot tearing. Good machinability and excellent weldability.

Suitable applications:
For complicated thin-wall, pressure-tight, castings subjected to fatigue loading. High strength after heat treatment, but with limited
corrosion resistance properties.

Heat treatment:
Solution heat treaded 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
600-530	680-750	Excellent	Excellent	S:1-1,2 K:0,8-1	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: 160 K:180	S: 80 K: 90	S: 1 K: 1	S: 50 K: 55

Mechanical and physical properties:

Density Kg/Dm³	Strength	Machinability	Weldability	Resistance to corrosion
2,65	Good	Good	Excellent	Satisfact.

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	16 – 24	130 - 170