Shipbuilding involves extensive two‑wire/three‑wire submerged‑arc welding for plate splicing, which demands extremely high deposition efficiency and resistance to wind‑wave fatigue loads. Offshore platforms operate under far harsher service conditions. Exposed long‑term to deep‑sea corrosion and low‑temperature alternating stress, they set stringent thresholds for welding consumables in terms of tensile strength, cryogenic toughness, and official certification from major classification societies (ABS, DNV, LR, etc.).
GUJIN® shipbuilding‑grade welding consumables deliver excellent arc stability for multi‑wire coordinated welding. They tolerate high‑heat‑input (high line‑energy) welding in shipyard workshops without degradation of mechanical properties. Our copper‑coated solid wires are manufactured with high‑precision drawing technology to guarantee flawless feeding through long‑distance automatic wire‑feeding systems spanning dozens of meters in shipyards, with minimal spatter.
For flat butt joints on ship decks and hull shells in shipyards, our neutral sintered system effectively mitigates the risk of heat‑affected‑zone embrittlement induced by high‑line‑energy welding. For welding jack‑up rig legs that bear core structural stress, our high‑basicity formulation delivers rock‑solid fracture toughness for structures.
Conventional Shipbuilding Panel Lines:
GJ‑301 (Silicon‑Calcium Type) + EM12K. Suitable for high‑efficiency multi‑wire submerged‑arc plate splicing in shipyards with outstanding bead appearance.
Core Structures of Offshore Platforms (Cryogenic / High‑Strength):
GJ‑101G (Fluorine‑Basic Type) + EA2 (S2Mo) or EM12K. Guarantees ultra‑low‑temperature toughness and high tensile strength under frigid offshore conditions.
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