S.A.E 4130 is a ___________ steel that can be typically used

s-a-e-4130-is-a-steel-that-can-be-typically-used

S.A.E 4130 is a ___________ steel that can be typically used in manufacturing parts made of sheet and tubing.

A. chrome-molybdenum

B. silicon

C. vanadium

D. uranium

I have been asked this question in exam.

The doubt is from Advantages and Applications of Steel in division Steel and its Alloys of Aerospace Materials & Processes

Correct answer is A. chrome-molybdenum

The explanation is: The chrome-molybdenum steel S.A.E 4130 is used in manufacturing aircraft parts that are made of sheet and tubing. It is preferred for its good welding characteristics and it’s reaction to heat treatment.