For steels containing more than ____ carbon, preheating and subsequent heat treatment are generally required to produce a satisfactory weld.
A) 0.10%
B) 0.20%
C) 0.30%
D) 0.40%

Question

Quizplus · Accepted Answer

Steels containing more than 0.40% carbon generally require preheating and subsequent heat treatment to produce a satisfactory weld because of their higher carbon content, which increases the risk of cracking and other welding defects.

For Steels Containing More Than ____ Carbon, Preheating and Subsequent