Alloy are usually hard harder than the parent metal .For example ,steel is harder than pure iron and duralumin is much harder than pure aluminium . Name an alloy which is anexception

Alloy are usually hard harder than the parent metal .For example ,stee

1.	Alloy are usually hard harder than the parent metal .For example ,steel is harder than pure iron and duralumin is much harder than pure aluminium . Name an alloy which is anexception
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