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What is the permissible percentage of micro-alloys in medium and high strength micro-alloyed steel?

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in Design of Steel Structures by (962k points)
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

1 Answer

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Best 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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