EN 1706 Grade AC-45200 T6 – Premium Aluminum Alloy for High-Performance Applications

Material EN AC-Al Si5Cu3Mn is produced as sand, chilled and precision casting. It shows the following casting characteristics and properties: plasticity: good heat crack resistance: good pressure tightness: good workability (casting condition): good workability (casting condition): good corrosion resistance: insufficient decorative anodic oxidation: insufficient weldability: acceptable polishability: good strength at room temperature: excellent strength at increased temp. (up to 200°C): excellent ductility (impact strength): acceptable fatigue strength amounts 70 to 100 N/mm² ( best available casting method, values for vibration durability up to 50*10 hoch 6 cycles [Woehler diagram]).

Properties

General

Property	Value	Comment
Density	2.65 - 2.7 g/cm³	Typical for Cast 3xx.x Series Aluminium

Mechanical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Bending Fatigue Strength		70.0 - 100.0 MPa	T6	EN 1706	Casting
Elastic modulus		73.0 - 80.0 GPa				Typical for Cast 3xx.x Series Aluminium
Hardness, Brinell		90.0 [-]	T6	EN 1706	Casting
	20.0 °C	90.0 [-]	T6	EN 1706
Poisson's ratio		0.33 [-]				Typical for Cast 3xx.x Series Aluminium
Shear modulus		2.8 GPa				Typical for Cast 3xx.x Series Aluminium
Tensile strength		230.0 MPa	T6	EN 1706	Casting
		280.0 MPa	T6	EN 1706	Casting
	20.0 °C	230.0 MPa	T6	EN 1706
	20.0 °C	280.0 MPa	T6	EN 1706

Thermal

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Coefficient of thermal expansion	20 °C	2.2e-05 1/K	T6	EN 1706	Casting
	100.0 °C	2.2e-05 1/K	T6	EN 1706	Casting
	100 °C	2.2e-05 1/K	T6	EN 1706	Casting
Melting point		505.0 - 770.0 °C				Typical for Cast 3xx.x Series Aluminium
Specific heat capacity		960.0 - 963.0 J/(kg·K)				Typical for Cast 3xx.x Series Aluminium
Thermal conductivity	20.0 °C	120.0 - 130.0 W/(m·K)	T6	EN 1706	Casting

Electrical

Property	Temperature	Value	Condition	Related Standards	Shape
Electrical conductivity	20.0 °C	15000000.0 - 19000000.0 S/m	T6	EN 1706	Casting
Electrical resistivity		5.26e-08 - 6.67e-08 Ω·m	T6	EN 1706	Casting

Chemical properties

Property	Value	Condition	Related Standards	Shape
Aluminium	86.65 %	T6	EN 1706
Copper	2.5 - 4.0 %	T6	EN 1706	Casting
Iron	0.8 %	T6	EN 1706
	0.80 %	T6	EN 1706	Casting
Lead	0.2 %	T6	EN 1706	Casting
Magnesium	0.4 %	T6	EN 1706	Casting
Manganese	0.2 - 0.55 %	T6	EN 1706	Casting
Nickel	0.3 %	T6	EN 1706	Casting
Silicon	4.5 - 6.0 %	T6	EN 1706	Casting
Tin	0.1 %	T6	EN 1706	Casting
Titanium	0.2 %	T6	EN 1706	Casting
Zinc	0.55 %	T6	EN 1706	Casting

Technological properties

Property
Anodizing	decorative: not sufficient
Corrosion properties	general: not sufficient
General machinability	after thermal treatment: good, as cast: good
Processing methods	permanent mould casting, separately cast test sample

EN 1706 Grade AC‑42000 F Aluminium Casting Alloy: Key Properties & Standards EN 1706 AC-45200 F: High-Strength Aluminum Alloy for Precision Casting

Metal