Low carbon steels need not be preheated before welding.(a) True(b) FalseThe question was asked in exam.The above asked question is from Welding of Various Metals in chapter Welding and Related Processes of Casting-Forming-Welding II

Low carbon steels need not be preheated before welding.(a) True(b) Fal

1.	Low carbon steels need not be preheated before welding.(a) True(b) FalseThe question was asked in exam.The above asked question is from Welding of Various Metals in chapter Welding and Related Processes of Casting-Forming-Welding II
Answer» Correct OPTION is (a) True To explain: Carbon steels which contain carbon in a very low amount are not COMPULSORILY required to be preheated before undergoing welding if the LARGE RUNS are made. This is because, in low carbon steels, unlike HIGH carbon steels, there is no cracking seen on welding.

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