1. Selection of welding consumables: Electrodes or welding wire should be selected from marine-grade welding materials that match the strength grade of the base metal.

2. Preheating requirements: For thick plates exceeding 25 mm in thickness, it is recommended that the preheating temperature be maintained between 80–120°C.

3. Carbon equivalent control: With a carbon equivalent (CEV) ≤ 0.40%, the steel exhibits moderate susceptibility to cold cracking.

4. Welding procedure: Strictly control the heat input during welding and avoid excessive heat input per unit length.