ESAB OK 76.18
The ESAB OK 76.18 is a basic low-hydrogen stick electrode designed for welding creep-resistant steels such as 1%Cr 0.5%Mo alloys. It delivers stable arcs and minimal spatter, providing high-quality welds with excellent resistance to cracking and porosity. This electrode is ideal for applications requiring long-term strength at elevated temperatures, ensuring weld reliability in critical environments.
Classified under AWS A5.5: E8018-B2 and EN ISO 3580-A: E CrMo1 B 4 2 H5, it is suited for high-performance welding in the petrochemical and power generation sectors. It operates on DC+(-), ensuring stable welding performance across various current settings, and meets stringent international standards, including ABS, BV, CE, and DNV-GL approvals.
Key Features of ESAB OK 76.18
- Crack-Resistant Welds: Provides superior resistance to cracking in high-temperature applications, ensuring long-lasting weld integrity.
- Stable Arc Performance: Offers a smooth, stable arc with minimal spatter, resulting in high-quality weld deposits.
- Low-Hydrogen Electrode: Diffusible hydrogen content below 5 ml/100g reduces the risk of hydrogen-induced cracking.
- High Creep Resistance: Ideal for welding creep-resistant steels, providing excellent mechanical strength under elevated temperature conditions.
- Versatile Approvals: Approved by major international bodies, including ABS, BV, CE, and DNV-GL, for critical industry applications.
Key Industry Applications
- Petrochemical Industry: Frequently used for welding pipes, valves, and pressure vessels in petrochemical plants. The electrode’s crack-resistant properties ensure reliable performance under extreme conditions.
- Power Generation: Ideal for high-temperature welding in boilers, turbines, and other power generation components. Specifically, it provides structural integrity in parts subjected to high mechanical and thermal stress.
- Refineries: Provides durable welds in refinery equipment, including heat exchangers and reactors, where long-term strength is essential under continuous high temperatures.
- Pressure Vessels: Excellent for welding pressure vessels and tanks made from creep-resistant alloys. It ensures reliability in applications requiring high-pressure and high-temperature stability.
- Piping Systems: Used in welding critical pipelines in both the oil and gas sectors, providing robust, crack-free welds in challenging operational conditions.
Specifications
| Feature | Details |
|---|---|
| Classification | AWS A5.5: E8018-B2 |
| Typical Yield Strength | 580 MPa |
| Typical Tensile Strength | 670 MPa |
| Elongation | 24% |
| Typical Hydrogen Content | < 5 ml/100g |
| Welding Current | DC+(-) |
| Typical Composition | Cr: 1.3%, Mo: 0.5% |
The ESAB OK 76.18 is an ideal choice for welding creep-resistant steels in the petrochemical, power generation, and oil and gas industries. It ensures strong, crack-free welds that meet the demands of high-temperature applications.
