CAPF Exam: Alloys

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NameCompositionUse
BrassCu (60 % to 80 %) , Zn (40 to 20 %)For making household utencils
BronzeCu (75 to 90 %) , Sn (25 to 10 %)For making coins, idols, utencils
German SilverCu (60 %) , Zn (25 %) , Ni (15 %)For making utencils
MagneliumMg (5 %) , Al (95 %)For making aircraft frame
Rolled GoldCu (90 %) , Ni (10 %)For making cheap ornaments
Monel metalCu (70 %) , Ni (30 %)For making alkali resistant containers
Bell metalsCu (80 %) , Sn (20 %)For making bells
Gun metalCu (85 %) , Zn (10 %) , Sn (5 %)Used for engineering purpose
SolderSn (50 − 75 %) , Pb (50 − 25 %)Soldering of metals
DuraliumAl (95 %) , Cu (4 %) , Mg (0.5 %) , Mn (0.5 %)In aircraft manufacturing
SteelFe (98 %) , C (2 %)For making nails, screws, bridges
Stainless SteelFe (82 %) Cr, Ni (18 %)for making cooking utencils, knives

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