Aluminium / Aluminum Alloys - Composition of Sand Cast Alloys

Sep 26 2012

The following table outlines the chemical composition limits for sand cast aluminium alloys.

Alloy Composition (wt.%) Others
ANSI UNS Al Si Fe Cu Mn Mg Cr Ni Zn Sn Ti Each Total
201.0 A02010 balance 0.10 0.15 4.0–5.2 0.20–0.50 0.15–0.55 - - - - 0.15–0.35 0.05A 0.10
204.0 A02040 balance 0.20 0.35 4.2–5.0 0.10 0.15–0.35 - 0.05 0.10 0.05 0.15–0.30 0.05 0.15
242.0 A02420 balance 0.7 1.0 3.7–4.5 0.35 1.2– 1.8 0.25 1.7–2.3 0.35 - 0.25 0.05 0.15
A242.0 A12420 balance 0.6 0.8 3.7–4.5 0.10 1.2–1.7 0.15– 0.25 1.8–2.3 0.10 - 0.07–0.20 0.05 0.15
295.0 A02950 balance 0.7–1.5 1.0 4.0–5.0 0.35 0.03 - - 0.35 - 0.25 0.05 0.15
319.0 A03190 balance 5.5–6.5 1.0 3.0–4.0 0.50 0.10 - 0.35 1.0 - 0.25 - 0.50
328.0 A03280 balance 7.5–8.5 1.0 1.0–2.0 0.20–0.6 0.20– 0.6 0.35 0.25 1.5 - 0.25 - 0.50
355.0 A03550 balance 4.5–5.5 0.6B 1.0– 1.5 0.50B 0.40–0.6 0.25 - 0.35 - 0.25 0.05 0.15
C355.0 A33550 balance 4.5–5.5 0.20 1.0–1.5 0.10 0.40–0.6 - - 0.10 - 0.20 0.05 0.15
356.0 A03560 balance 6.5–7.5 0.6B 0.25 0.35B 0.20– 0.45 - - 0.35 - 0.25 0.05 0.15
A356.0 A13560 balance 6.5–7.5 0.20 0.20 0.10 0.25–0.45 - - 0.10 - 0.20 0.05 0.15
443.0 A04430 balance 4.5–6.0 0.8 0.6 0.50 0.05 0.25 - 0.50 - 0.25 - 0.35
B443.0 A24430 balance 4.5–6.0 0.8 0.15 0.35 0.05 - - 0.35 - 0.25 0.05 0.15
512.0 A05120 balance 1.4–2.2 0.6 0.35 0.8 3.5–4.5 0.25 - 0.35 - 0.25 0.05 0.15
514.0 A05140 balance 0.35 0.50 0.15 0.35 3.5–4.5 - - 0.15 - 0.25 0.05 0.15
520.0 A05200 balance 0.25 0.30 0.25 0.15 9.5–10.6 - - 0.15 - 0.25 0.05 0.15
535.0 A05350 balance 0.15 0.15 0.05 0.10–0.25 6.2–7.5 - - - - 0.10–0.25 0.05C 0.15
705.0 A07050 balance 0.20 0.8 0.20 0.40–0.6 1.4–1.8 0.20– 0.40 - 2.7–3.3 - 0.25 0.05 0.15
707.0 A07070 balance 0.20 0.8 0.20 0.40–0.6 1.8–2.4 0.20– 0.40 - 4.0–4.5 - 0.25 0.05 0.15
710.0D A07100 balance 0.15 0.50 0.35–0.65 0.05 0.6– 0.8 - - 6.0–7.0 - 0.25 0.05 0.15
712.0D A07120 balance 0.30 0.50 0.25 0.10 0.50– 0.65 0.40–0.6 - 5.0–6.5 - 0.15–0.25 0.05 0.20
713.0 A07130 balance 0.25 1.1 0.40–1.0 0.6 0.20– 0.50 0.35 0.15 7.0–8.0 - 0.25 0.10 0.25
771.0 A07710 balance 0.15 0.15 0.10 0.10 0.8–1.0 0.06– 0.20 - 6.5–7.5 - 0.10–0.20 0.05 0.15
850.0 A08500 balance 0.7 0.7 0.7–1.3 0.10 0.10 - 0.7– 1.3 - 5.5–7.0 0.20 - 0.30
851.0D A08510 balance 2.0–3.0 0.7 0.7–1.3 0.10 0.10 - 0.30–0.7 - 5.5–7.0 0.20 - 0.30
852.0D A08520 balance 0.40 0.7 1.7–2.3 0.10 0.6–0.9 - 0.9–1.5 - 5.5–7.0 0.20 - 0.30

AContains silver 0.40–1.0%.

BIf iron exceeds 0.45%, manganese content shall not be less than one half of the iron content.

CContains beryllium 0.003–0.007%, boron 0.005% max.

D710.0 formerly A712.0, 712.0 formerly D712.0, 851.0 formerly A850.0, 852.0 formerly B850.0.

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