7018 Welding Rods - Basic - Low Hydrogen
Key Features of 7018 welding rods:
Applications: 7018 welding rods are commonly used in construction, shipbuilding, pipelines, structural steelwork, and heavy equipment repair. They excel in applications where strength and durability are critical, such as:
- Structural Steel Fabrication: Ideal for bridges, buildings, and other infrastructure projects.
- Pipe Welding: Especially in industries like oil and gas, where the integrity of the weld is crucial.
- Heavy Equipment Repair: From tractors to industrial machinery, 7018 rods ensure reliable, long-lasting repairs.
How to Use 7018 Welding Rods:
- Polarity: Use DC+ (direct current electrode positive) for the best results.
- Storage: 7018 rods should be stored in a dry environment and kept in a rod oven to prevent moisture absorption, which could lead to hydrogen embrittlement.
- Welding Techniques: 7018 rods are ideal for drag or "dragging" techniques, where the rod is moved smoothly across the joint with minimal effort.
Whether you’re working on high-strength structural welds or simple repairs, 7018 welding rods provide the performance, durability, and versatility to get the job done right.
The three primary categories of electrodes—cellulose, rutile, and basic (low-hydrogen)—obtain their name from the coating type. Electrode coatings help optimise performance for various applications by influencing how quickly the slag freezes; penetration (deep, medium, or mild); and deposition rate. The coating also contributes to good arc initiation, easy restrikes, puddle control, and a stable arc with minimal spatter.
Basic. Basic electrodes offer an arc with medium penetration and excellent mechanical properties. The coating is low-hydrogen iron powder, TiO2, CaCO3, and CaF2 (calcium fluoride). The coating is of medium thickness, and the addition of iron powder increases deposition. It freezes relatively fast to enable flat, horizontal, vertical-up, and overhead welding.
Categories related to 7018 Low Hydrogen Welding Rods: