Description
NIHONWELD N-9018 is a high-performance low hydrogen welding electrode developed for welding higher strength steels with tensile strength exceeding 90,000 PSI. Engineered for structural fabrication, heavy industrial applications, and demanding welding environments, it delivers dependable weld integrity, stable arc characteristics, and strong mechanical performance.
The electrode features a specially formulated flux coating designed to resist moisture pickup under high heat and humidity conditions, helping maintain welding quality and reduce the risk of hydrogen-induced cracking. Its smooth welding characteristics and reliable arc stability make it suitable for critical structural and industrial welding operations.
NIHONWELD N-9018 provides excellent toughness, high tensile strength, and reliable weld performance for fabrication, maintenance, repair, and heavy-duty welding applications requiring durable and high-strength weld deposits.
Key Features
- Low hydrogen electrode for high-strength steel applications
- Designed for steels exceeding 90,000 PSI tensile strength
- Moisture-resistant flux coating for humid conditions
- Stable arc and reliable welding performance
- Strong mechanical properties and weld integrity
- Suitable for all welding positions
Classification
- AWS A5.5 E9018
Typical Chemical Composition of Weld Metal Deposits (%)
| C | Si | Mn | P | S | Ni | Cr | Mo | V |
|---|---|---|---|---|---|---|---|---|
| 0.054 | 0.37 | 1.10 | 0.023 | 0.012 | 1.49 | 0.07 | 0.29 | 0.012 |
Typical Mechanical Properties of Weld Metal Deposits
| Property | Value |
|---|---|
| Yield Point | 580 N/mm² (84 KSI) |
| Tensile Strength | 671 N/mm² (97 KSI) |
| Elongation | 25% |
| Charpy V-Notch at -60°F | 48 J |
Size and Recommended Current Range (AC / DC+ / DC-)
| Diameter | Length | Flat | Vertical & Overhead |
|---|---|---|---|
| 2.6 mm | 350 mm | 55–85A | 50–80A |
| 3.2 mm | 350 mm | 90–130A | 80–120A |
| 4.0 mm | 400 mm | 135–185A | 110–170A |
| 5.0 mm | 400 mm | 190–250A | — |
Welding Positions
All Positions Including Vertical Down
Applications
- High-strength steel welding
- Structural fabrication
- Heavy industrial welding
- Maintenance and repair work
- Pressure vessel applications
- Critical welding operations
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