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What is the permissible percentage of micro-alloys in medium and high strength micro-alloyed steel?(a) 0.1%(b) 0.5%(c) 0.25%(d) 1.0%I got this question during an interview.The query is from Types of Steel topic in division Materials, Structures and Specifications of Design of Steel Structures

Answer»

Right choice is (c) 0.25%

Best explanation: MEDIUM and High strength micro-alloyed steel have LOW carbon content, but ALLOYS such as NIOBIUM, VANADIUM, titanium or boron are added to achieve high strength.



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