EN 1706 Grade AC-44300 F

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Description

Material EN AC-AlSi12(Fe) is produced as diecasting. It shows the following casting characteristics and properties: plasticity: excellent heat crack resistance: excellent pressure tightness: acceptable workability (after heat-treatment): acceptable corrosion resistance: acceptable decorative anodic oxidation: not advisable weldability: insufficient polishability: insufficient strength at room temperature: good strength at increased temp. (up to 200°C): acceptable ductility (impact strength): acceptable fatigue strength amounts 60 to 90 N/mm² ( best available casting method, values for vibration durability up to 50*10 hoch 6 cycles [Woehler diagram]). Diecasting weldability depends on the embedded gas amount and is mostly insufficient. For certain casting methods are achievable good to acceptable values. To the comparable DIN-mark GD-AlSi12, mat. No. 3.2582, acc. to DIN 1725-2 : 1986-02 applies: The material an unhardenable eutectic alloy of excellent form matching capability, high heat-crack resistance, favorable casting properties and high chemical resistance. It is suitable for higher loaded corrosion and vibration resistant casting parts. Application: machine parts, shock and vibration loaded parts, cylinder heads and blocks, engine-, crank- and pump cases, blade wheels, finned bodies, thinn-walled cases, complex assembly blocks and plates.

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Properties

General

Density

ρ

2.65 g/cm³ at 20 °C

Mechanical

Elastic modulus

E

75 GPa at 20 °C

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Elongation A50

A50

1 % at 20 °C

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Hardness, Brinell

HB

60 [-] at 20 °C

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Poisson's ratio

ν

0.33 [-] at 20 °C

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Typical for Cast 4xx.x Series Aluminium

Tensile strength

Rm

240 MPa at 20 °C

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Yield strength Rp0.2

Rp0.2

130 MPa at 20 °C

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Thermal

Coefficient of thermal expansion

α

2E-5 - 2.1E-5 1/K at 20 °C

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Melting point

Tm

570 - 580 °C

Specific heat capacity

cp

900 J/(kg·K) at 20 °C

Thermal conductivity

λ

130 - 160 W/(m·K) at 20 °C

Electrical

Electrical conductivity

σel

1.60E+7 - 2.20E+7 S/m at 20 °C

Electrical resistivity

ρel

4.55E-8 - 6.25E-8 Ω·m at 20 °C

Chemical properties

Element

Weight %

Comment

Other

-

each 0.05, total 0.25, Rest Al

Al

84.3 %

Si

10.5 - 13.5 %

Fe

1 %

Mn

0.55 %

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Technological properties

Anodizing

decorative: not recommended

Corrosion properties

general: acceptable

General machinability

after thermal treatment: acceptable

Processing methods

pressure die casting, separately cast test sample

This material data has been provided by WIAM,AluKey.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.