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13

Al26,982

With an appropriate approval* CL 32AL can be used for production of functional parts or medical instruments.

Aluminum alloy (powder), chemical composition CL 32AL according to DIN EN 1706 AlSi10Mg(b).

CHEMICAL COMPOSITION

Component Indicative value (%)

Si 9.0 – 11.0

Mg 0.20 – 0.45

Fe 0 – 0.55

Mn 0 – 0.45

Ti 0 – 0.15

Cu 0 – 0.10

Zn 0 – 0.10

C 0 – 0.05

Ni 0 – 0.05

Pb 0 – 0.05

Sn 0 – 0.05

Al Balance

Lase

rCU

SIN

G® |

Sour

ce: C

once

pt L

aser

Gm

bH

CL 32AL Aluminium alloy

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Test piece (x 100 magnification)

MICROSECTION

Test piece (x 20 magnification)

CL 32ALAluminium alloy

With an appropriate approval* CL 32AL can be used for production of functional parts or medical instruments.

RANGE OF APPLICATION08

/201

8 | S

ubje

ct t

o te

chni

cal c

heng

es.

Titl

e ph

oto:

fina

med

ia.d

e M

icro

sect

ions

: Con

cept

Las

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mbH

A

rtw

ork:

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TECHNICAL DATA AFTER RECOMMENDED HEAT TREATMENT

STRESS RELIEF HEAT TREATMENT MICROSTRUCTURE

Stress relief annealing: Heat up in 1 hour to 240°C. Maintain temperature for 6 hours. Allow the components to cool down in the oven to 100°C. Afterwards allow the component cooling down at ambient atmosphere.

Components made from aluminium alloy CL 32AL display a homogeneous, dense structure after they are manufactured by means of the DMLM process.

90° (horizontal) 0° (upright)

Yield strength Rp0,2 1 165 ± 20 N/mm2 155 ± 20 N/mm2

Tensile Strength Rm 1 285 ± 20 N/mm2 300 ± 20 N/mm2

Elongation A 1 9 ± 2 % 7 ± 2 %

Young’s modulus 2 ca. 75 · 103 N/mm2 ca. 75 · 103 N/mm2

Thermal conductivity 2 120 - 180 W/mK 120 - 180 W/mK

Coefficient of thermal expansion (at rt) 2 20 · 10-6 K -1 20 · 10-6 K -1

1 Tensile test according to DIN EN 50125 at 20°C2 Specification according to the material manufacturer’s

data sheet