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Preheating of work piece is essential in welding
  • a)
    High speed steel
  • b)
    Stainless steel
  • c)
    Cast iron
  • d)
    Aluminium
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Preheating of work piece is essential in weldinga)High speed steelb)St...
Preheating is often employed when welding cast iron, high carbon steel or alloy steel since preheating slows down the cooling rate of that area of parent metal close to the weld itself and the weld itself and thereby prevents the formation of martensite which accounts for hardness across the weld. The change of cracking in the heat-cooling is also minimized by preheating.
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Preheating of work piece is essential in weldinga)High speed steelb)Stainless steelc)Cast irond)AluminiumCorrect answer is option 'C'. Can you explain this answer?
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Preheating of work piece is essential in weldinga)High speed steelb)Stainless steelc)Cast irond)AluminiumCorrect answer is option 'C'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about Preheating of work piece is essential in weldinga)High speed steelb)Stainless steelc)Cast irond)AluminiumCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Preheating of work piece is essential in weldinga)High speed steelb)Stainless steelc)Cast irond)AluminiumCorrect answer is option 'C'. Can you explain this answer?.
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