SUPER OPTIMAL 7018 is a premium low-hydrogen carbon steel welding electrode designed to deliver strong, durable, and reliable welds. Its self-lifting slag ensures smooth, crack-free weld beads with minimal spatter, making post-weld cleaning quick and easy. With very low diffusible hydrogen and excellent impact toughness, it reduces the risk of hydrogen-induced cracking while providing superior mechanical performance. Ideal for structural steel, heavy machinery, pressure vessels, and other critical applications, SUPER OPTIMAL 7018 ensures professional-quality welds under demanding industrial conditions.
Key Features and Benefits
SUPER OPTIMAL 7018 is a high-quality welding electrode that delivers strong, reliable welds for industrial and structural use.
- Easy Slag Removal: The self-lifting slag ensures that post-weld cleaning is quick and effortless, saving time and effort on every job.
- Strong and Tough: Provides excellent impact resistance and mechanical strength, producing durable and long-lasting welds.
- Crack-Free Welds: Minimises the risk of weld defects, ensuring safer and more reliable joints even under demanding conditions.
- Smooth Weld Beads: Offers neat, uniform weld beads while optimising material usage for efficient and high-quality results.
- Low Hydrogen Content: Maintains ultra-low hydrogen levels to prevent cracking and enhance the longevity of the welded structure.
- Versatile in Use: Compatible with both AC and DC(+) power sources, offering flexibility across different welding setups.
SUPER OPTIMAL 7018 ensures reliable, efficient, and high-quality welds, making it the preferred choice for professional welders.
Specifications
SUPER OPTIMAL 7018 welding rods are designed for strong, reliable welds and consistent performance in a variety of industrial applications.
| Product Name | AWS/SFA | Yield Strength N/mm² | Tensile Strength N/mm² | Elongation A5 (%) | Impact O V (J) | Welding Conditions |
|---|---|---|---|---|---|---|
| Super 7 | E 7018 | ≥450 | 540–620 | ≥27 | ≥80 | AC/DC(+) |
| Superon 7018 | E7018 | ≥450 | 550–620 | ≥28 | ≥80 | DC(+) : AC |
| SUPER OPTIMAL 7018 | E 7018-H4 | ≥450 | 550–620 | ≥28 | ≥90 | AC; DC+ |
| SUPER OPTIMAL 7018(SP) | E 7018-1 | ≥450 | 510–610 | ≥28 | ≥80 J at -50°C | DC(+) ; AC |
| SUPER OPTIMAL 7018S | E 7018-1 H4 | ≥450 | 550–620 | ≥28 | 80 J at -50°C | - |
| SUPER OPTIMAL 7018SH4R | E 7018-1 H4R | ≥450 | 550–640 | ≥28 | 80 J at -50°C | - |
| SUPER OPTIMAL 7018H4R | E 7018 H4R | ≥450 | 550–640 | ≥28 | 80 J at -40°C | - |
| SUPER OPTIMAL 7018SW | E7018 | ≥450 | 550–650 | ≥28 | 100 | - |
These specifications ensure that Superon welding electrodes provide strong, reliable welds with excellent mechanical performance across a variety of applications and conditions.
Properties
SUPER OPTIMAL 7018 welding rod possesses a carefully engineered combination of mechanical and chemical properties that ensure strong, durable, and reliable welds across a wide range of applications.
- Electrode Type: Low-hydrogen, iron-powder electrode designed for stability and consistent arc performance.
- Material Compatibility: Ideal for carbon steel and low-alloy steel, providing versatility across different welding projects.
- Tensile Strength: High tensile strength ensures robust joints capable of withstanding heavy loads and structural stress.
- Yield Strength: Maintains stability and prevents deformation under applied forces, ensuring structural integrity.
- Impact Toughness: Excellent notch impact resistance allows welds to endure both static and dynamic loads.
- Hydrogen Control: Ultra-low diffusible hydrogen levels (~4 ml/100 g weld metal) minimise the risk of hydrogen-induced cracking.
- Weld Deposit Properties: Produces smooth, uniform weld beads with good fusion and minimal defects, ensuring long-lasting welds.
- Deposition Efficiency: High deposition rates provide efficient material use, reduce wastage, and increase productivity.
These properties make SUPER OPTIMAL 7018 a reliable choice, providing strong, durable, and clean welds for all types of welding projects.
Related Products
Explore other welding electrodes in the SUPER OPTIMAL range, each designed to meet specific welding requirements and ensure high-quality, reliable welds.
- SUPER OPTIMAL 7018 (SP): Premium low-hydrogen electrode for critical structural and industrial welding applications.
- SUPER OPTIMAL 7016: Designed for smooth weld beads with excellent arc stability and reduced spatter.
- SUPER OPTIMAL 7024: High-deposition electrode ideal for heavy fabrication and large-scale projects.
- SUPER OPTIMAL 6013: Easy-to-use electrode offering smooth welds and excellent all-position performance.
SUPER OPTIMAL electrodes offer a complete range of reliable and efficient welding solutions, catering to diverse applications and professional welding requirements.

