Answer / Km. Anamika Shrotriya

IS 2004, Grade 3 (Gr. 3) is a low alloy steel with a chemical composition that includes carbon content up to 0.3%, manganese up to 1.6%, and silicon up to 0.6%. It has good mechanical properties such as high strength, excellent weldability, and good formability. On the other hand, IS 305 AB-2 is a carbon steel with chemical composition that includes carbon content up to 0.2%, manganese up to 1%, and silicon up to 0.4%. It has lower strength compared to IS 2004 Gr. 3 but offers good machinability and formability.

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