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Chemical Composition Limits

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Chemical Composition Limits

WROUGHT ALLOYS:- CHEMICAL COMPOSITION LIMITS (PER CENT):
ALLOYS    (ISS) EQUIVALENT ALLOY (AA) COPPER MANGNESIUM SILICON IRON MANGANSE OTHER (TOTAL) REMARKS
OLD NEW U.S.A. MIN. MAX. MIN. MAX. MIN. MAX. MAX. MIN. MAX. MAX.
1C 19000 1100 - 0.10 - - - 0.5 0.6 - 0.1 0.1 ALUMINIUM 99.0% MIN
- - 1200 - 0.05 - - SL+FE 1.0 - - 0.05 0.1 ALUMINIUM 99.0% MIN
1B 19500 1050 - 0.05 - - - 0.25 0.4 - 0.05 0.1 ALUMINIUM 99.5% MIN
1E 19501 - - 0.04 - - - 0.15 0.35 - 0.03 0.1 ALUMINIUM 99.5% MIN
- - 1350 - 0.05 - - - 0.10 0.40 - 0.01 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 - - - 0.2 0.25 - 0.03 0.1 ALUMINIUM 99.7% MIN
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 -
N3 31000 3003 - 0.1 - 0.1 - 0.6 0.7 1.0 1.5 0.4 -
- - 3103 - 0.1 - 0.3 - 0.50 0.7 0.90 1.5 - -
- - 3105 - 0.3 0.2 0.8 - 0.60 0.7 0.30 0.8 - -
N21 43000 4043 - 0.1 - 0.2 4.5 6.0 0.6 - 0.5 0.2 -
N2 46000 4047 - 0.1 - 0.2 10.0 13.0 0.6 - 0.5 0.2 -
N4 52000 5052 - 0.1 1.7 2.6 - 0.6 0.5 - 0.5 0.4 CR + MN = 0.5
N5 53000 5086 - 0.1 2.8 4.0 - 0.6 0.5 - 0.5 0.4 CR + MN = 0.5
N6 55000 5056 - 0.1 4.5 5.6 - 0.6 0.7 - 0.5 0.4 CHROMIUM UPTO 0.25
N8 54300 5083 - 0.1 4.0 4.9 - 0.4 0.7 0.5 1.0 0.4 CHROMIUM UPTO 0.25
H 20 65032 - 0.15 0.4 0.7 1.2 0.4 0.8 0.7 0.2 0.8 0.4 ** CR=0.15-0.35%
- - 6061 0.15 0.4 0.8 1.2 0.4 0.8 0.7 - 0.15 0.4 CHROMIUM 0.04 TO 0.35
H 9 63400 6063 - 0.1 0.4 0.9 0.3 0.7 0.6 - 0.3 0.4 -
- - 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 -
- - 6082 - 0.1 0.6 1.2 0.7 1.3 0.5 0.4 1.0 0.3 CHROMIMUM UPTO 0.25
- 74530 7039 - 0.2 1.0 1.5 - 0.4 0.7 0.2 0.7 0.4 ZINC 4.0 - 5.0%
- - 7075 1.2 2.0 2.1 2.9 - 0.5 0.5 - 0.3 0.2        ZINC (5.1 - 6.1) % &       CHROMIMUM                           (0.18-0.28)%    
- 40800 8011 - 0.2 - 0.1 0.6 0.95 0.95 - 0.1 - -
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