What is the permissible percentage of Sulphur and Phosphorous content in steel?(a) 0.1%, 0.12%(b) 1.0%, 3.0%(c) 3.0%, 1.0%(d) 1.0%, 1.0%The question was asked in class test.This intriguing question originated from Properties of Steel in chapter Materials, Structures and Specifications of Design of Steel Structures

What is the permissible percentage of Sulphur and Phosphorous content

1.	What is the permissible percentage of Sulphur and Phosphorous content in steel?(a) 0.1%, 0.12%(b) 1.0%, 3.0%(c) 3.0%, 1.0%(d) 1.0%, 1.0%The question was asked in class test.This intriguing question originated from Properties of Steel in chapter Materials, Structures and Specifications of Design of Steel Structures
Answer» RIGHT answer is (a) 0.1%, 0.12% To EXPLAIN: Sulphur CONTENT is generally between 0.02 – 0.1%. If more than 0.1%, it decreases strength and ductility of steel. If PHOSPHOROUS is more than 0.12%, it reduces shock resistance, ductility and strength of steel.

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