General Studies · Welding
Why is preheating necessary before welding high-carbon steels?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To decrease the cooling rate after welding✓
- 2To increase the speed of welding
- 3To enhance the magnetic properties of the steel
- 4To reduce the electrical resistance of the steel
Correct answer
To decrease the cooling rate after welding
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