cold cracking of weld is normally due to the presence of
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Hydrogen is the answer you are looking for.
Cold cracking is also usually called hydrogen cracking. It is a welding defect caused due to hydrogen being trapped in the weld. It is mainly due to the formation of Martensite (a hard form of steel) during the cooling process of the weld. It impacts on the heat-affected zone and causes cracks, leading to complete failure of the welding process.
Thus, cold cracking of weld is normally due to the presence of Hydrogen. This is the most appropriate answer to this question.
Cold cracking is also usually called hydrogen cracking. It is a welding defect caused due to hydrogen being trapped in the weld. It is mainly due to the formation of Martensite (a hard form of steel) during the cooling process of the weld. It impacts on the heat-affected zone and causes cracks, leading to complete failure of the welding process.
Thus, cold cracking of weld is normally due to the presence of Hydrogen. This is the most appropriate answer to this question.
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