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ALUMINIUM ALLOYS

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Product Description

Pure aluminium is soft and ductile and most commercial uses require greater strength than pure aluminium affords. So strength is achieved by the addition of other elements to produce alloys. Further strengthening is possible by means which classify the alloys roughly into two categories, non-heat-treatable and heat treatable.

 

ALUMINIUM ALLOYS : CHEMICAL COMPOSITION LIMITS
Alloy (ISS) Equivalent alloy (A.A.) Copper Magnesium Silicon Iron Magnese *Others (total) Max Remarks
Old New U.S.A Min Max Min Max Min Max Max Min Max
1 C 19000 1100 —- 0.1 —- —- —- 0.50 0.6 —- 0.1 0.1 Aluminium 99.0%Min.
1 B 19500 1050 —- 0.05 —- —- —- 0.30 0.40 —- 0.05 0.1 Aluminium 99.5%Min.
1 E 19501 1050 EC —- 0.04 —- —- —- 0.15 0.35 —- —- 0.1 Aluminium 99.5%Min.
—- 19600 1060 —- 0.05 —- —- —- 0.25 0.35 —- 0.03 0.1 Aluminium 99.6%Min.
—- 19700 1070 —- 0.03 —- —- —- 0.20 0.25 —- 0.03 0.1 Aluminium 99.7%Min.
—- —- 2011 5.0 6.0 —- 0.1 —- 0.4 0.7 —- 0.1 0.4 Also lead & bismuth 0.2-0.6% Each
H 15 24345 2014 3.8 5.0 0.2 0.8 0.5 1.2 0.7 0.3 1.2 0.5 —-
H 14 24534 2017 3.5 4.7 0.4 1.2 0.2 0.7 0.7 0.4 1.2 0.5 —-
N 3 31000 3003 —- 0.1 —- 0.1 —- 0.6 0.7 0.8 1.5 0.4 —-
N 21 43000 4043 —- 0.1 —- 0.2 4.5 6.0 0.6 —- 0.5 0.2 —-
N 2 46000 4047 —- 0.1 —- 0.2 10.0 13.0 0.6 —- 0.5 0.2 —-
N 4 52000 5052 —- 0.1 1.7 2.6 —- 0.6 0.5 —- 0.5 0.4 Chromium + Mn + 0.5
N 5 53000 5086 —- 0.1 2.8 4.0 —- 0.6 0.5 —- 0.5 0.4 Cr + Mn = 0.5
N 6 55000 5056 —- 0.1 4.5 5.5 —- 0.6 0.7 —- 0.5 0.4 Chromium up to 0.25
N 8 54300 5083 —- 0.1 4.0 4.9 —- 0.4 0.7 0.5 1.0 0.4 Chromium up to 0.25
H 20 65032 6061 0.15 0.4 0.7 1.2 0.4 0.8 0.7 0.2 0.8 0.4 Chromium (0.15-0.35) Either Mn or Cr. Shall be present.
H 9 63400 6063 —- 0.1 0.4 0.9 0.3 0.7 0.6 —- 0.3 Chromium up to 0.10
—- —- 6066 0.7 1.2 0.8 1.4 0.9 1.8 0.7 0.6 1.1 0.4 —-
—- 64423 —- 0.5 1.0 0.5 1.3 0.7 1.3 0.8 —- 1.0 —- —-
91 E 63401 6101 —- 0.05 0.4 0.9 0.3 0.7 0.5 —- 0.03 0.1 —-
—- 64401 6201 —- 0.1 0.6 0.9 0.5 0.9 0.5 —- 0.03 0.1 —-
H 30 64430 6351 —- 0.1 0.4 1.2 0.6 1.3 0.6 0.4 1.0 0.3 Chromium up to 0.25
—- 74530 7039 —- 0.2 1.0 1.5 —- 0.4 0.7 0.2 0.7 0.4 Zinc (4.5%)
—- —- 7075 1.20 2.0 2.1 2.9 —- 0.5 0.7 —- 0.3 0.2 Zinc (5.1-6.1) & Chromium (0.2 to 0.8)

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