What is the most common preheating temperature range for most steels?
A) 250°F to 400°F (120°C to 200°C)
B) 50°F to 100°F (10°C to 37°C)
C) 350°F to 650°F (170°C to 340°C)
D) 65°F to 145°F (18°C to 62°C)

Question

Quizplus · Accepted Answer

The most common preheating temperature range for most steels is 250°F to 400°F (120°C to 200°C) to reduce thermal shock and prevent cracking during welding.

What Is the Most Common Preheating Temperature Range for Most