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(a) Etat de traitement thermique :
Préfixe S : moulage sable
Préfixe K : moulage coquille
F : brut de fonderie
T1 : Refroidissement contrôlé et vieillissement naturel (maturation)
T4 : Traitement de mise en solution et vieillissement naturel (maturation)
T5 : Refroidissement contrôlé et vieillissement artificiel (recuit : stabilisation)
T6 : Traitement de mise en solution et vieillissement artificiel maximal (revenu)
T64 : Traitement de mise en solution et vieillissement artificiel modéré (sous-revenu)
Densité générale des alliages d’aluminium : 2,6989 g·cm-3
(b) Caractéristiques mécaniques
Rm : Résistance à la traction (effort maximal avant rupture)
Rp0,2 : Limite conventionnelle élastique (limite de déformation de l’alliage
A% : Allongement (capacité de l‘alliage à s’allonger avant rupture)
Dureté : dureté de l’alliage
Usinabi-
lité
ST4 –Y24 300 200 5 90
KT4 -Y34 320 200 8 95
KF - Y30 170 70 5 50
ST6 - Y23 240 180 3 85
KT6 - Y33 260 180 5 85
KF - Y30 170 90 2,5 55
ST6 - Y23 220 190 1 75
KT6 - Y33 260 220 1 90
KF - Y30 200 85 2,5 55
ST6 - Y23 230 190 2 75
KT6 - Y33 290 210 4 90
KF - Y30 200 100 2,5 60
ST6 - Y23 250 210 1 85
KT6 - Y33 320 240 3 100
KF - Y30 180 90 2,5 55
ST6 - Y23 220 180 1 75
KT6 - Y33 260 220 1 90
ST6 - Y23 230 190 2 75
KT6 - Y33 290 210 4 90
SF - Y20 150 70 4 50
KF - Y30 150 80 4 60
44400 AlSi9 ! ! ! KF - Y30 180 90 5 55 !! !! ! ! ! Bâtiment,
transport
ST1 210 190 1 90
KT1 290 210 2,5 105
!
AlSi12
44100
!!
!!
!!
!!
Transport,
pièces
sollicitées
!
!!!!
!
!!!
!!!
!!!! !
Transport,
pièces
complexes
!!! ! !!! !!
Sécurité,
transport,
bâtiment
!!! !!
Sécurité,
transport,
bâtiment
Electronique,
pièces
complexes
!
!!!!
!
!!!
!!
!!
!!!!
!
!!
!!!!
Transport,
pièces
soliicitées
71100 AlZn10Si8Mg ! !
!!! !
!!
43000 AlSi10Mg ! !
43300 AlSi9Mg ! !
!
!
42200 AlSi7Mg0,6 ! ! !
! !!! !
!!
Sécurité,
transport,
bâtiment
42100 AlSi7Mg0,3 ! !
!!! !!! !!! Décoration,
bâtiment
42000 AlSi7Mg ! ! ! !!! ! !!!
! !!!
Décoration,
pièces
sollicitées
41000 AlSi2MgTi ! ! !!!
21000 AlCu4MgTi ! ! ! !!!! ! !!
Comparatif des caractéristiques de quelques alliages courants
(données extraites de la norme NF EN 1706)
Désignation suivant norme
NF EN 1706
Méthode moulage Etat de
traitement
thermique (a)
Caractéristiques mécaniques mini. (b)
Aptitudes techniques
! : Faible ; !! : Passable ; !!! : Bon ; !!!! : Excellent Domaine
d’utilisation
favorisé
Numérique Polissabilité
Rp0,2 en MPa A% en % Dure-té en HB
Résistance à la
corrosion
Anodisation Soudabilité
Symbole
Chimique
Sable Coquille Sous pression
Précision (cire
perdue)
Rm en MPa

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Comparatif Caracteristiques Alliages.pdf

  • 1. (a) Etat de traitement thermique : Préfixe S : moulage sable Préfixe K : moulage coquille F : brut de fonderie T1 : Refroidissement contrôlé et vieillissement naturel (maturation) T4 : Traitement de mise en solution et vieillissement naturel (maturation) T5 : Refroidissement contrôlé et vieillissement artificiel (recuit : stabilisation) T6 : Traitement de mise en solution et vieillissement artificiel maximal (revenu) T64 : Traitement de mise en solution et vieillissement artificiel modéré (sous-revenu) Densité générale des alliages d’aluminium : 2,6989 g·cm-3 (b) Caractéristiques mécaniques Rm : Résistance à la traction (effort maximal avant rupture) Rp0,2 : Limite conventionnelle élastique (limite de déformation de l’alliage A% : Allongement (capacité de l‘alliage à s’allonger avant rupture) Dureté : dureté de l’alliage Usinabi- lité ST4 –Y24 300 200 5 90 KT4 -Y34 320 200 8 95 KF - Y30 170 70 5 50 ST6 - Y23 240 180 3 85 KT6 - Y33 260 180 5 85 KF - Y30 170 90 2,5 55 ST6 - Y23 220 190 1 75 KT6 - Y33 260 220 1 90 KF - Y30 200 85 2,5 55 ST6 - Y23 230 190 2 75 KT6 - Y33 290 210 4 90 KF - Y30 200 100 2,5 60 ST6 - Y23 250 210 1 85 KT6 - Y33 320 240 3 100 KF - Y30 180 90 2,5 55 ST6 - Y23 220 180 1 75 KT6 - Y33 260 220 1 90 ST6 - Y23 230 190 2 75 KT6 - Y33 290 210 4 90 SF - Y20 150 70 4 50 KF - Y30 150 80 4 60 44400 AlSi9 ! ! ! KF - Y30 180 90 5 55 !! !! ! ! ! Bâtiment, transport ST1 210 190 1 90 KT1 290 210 2,5 105 ! AlSi12 44100 !! !! !! !! Transport, pièces sollicitées ! !!!! ! !!! !!! !!!! ! Transport, pièces complexes !!! ! !!! !! Sécurité, transport, bâtiment !!! !! Sécurité, transport, bâtiment Electronique, pièces complexes ! !!!! ! !!! !! !! !!!! ! !! !!!! Transport, pièces soliicitées 71100 AlZn10Si8Mg ! ! !!! ! !! 43000 AlSi10Mg ! ! 43300 AlSi9Mg ! ! ! ! 42200 AlSi7Mg0,6 ! ! ! ! !!! ! !! Sécurité, transport, bâtiment 42100 AlSi7Mg0,3 ! ! !!! !!! !!! Décoration, bâtiment 42000 AlSi7Mg ! ! ! !!! ! !!! ! !!! Décoration, pièces sollicitées 41000 AlSi2MgTi ! ! !!! 21000 AlCu4MgTi ! ! ! !!!! ! !! Comparatif des caractéristiques de quelques alliages courants (données extraites de la norme NF EN 1706) Désignation suivant norme NF EN 1706 Méthode moulage Etat de traitement thermique (a) Caractéristiques mécaniques mini. (b) Aptitudes techniques ! : Faible ; !! : Passable ; !!! : Bon ; !!!! : Excellent Domaine d’utilisation favorisé Numérique Polissabilité Rp0,2 en MPa A% en % Dure-té en HB Résistance à la corrosion Anodisation Soudabilité Symbole Chimique Sable Coquille Sous pression Précision (cire perdue) Rm en MPa