ESAB OK 73.79 VP (VacPac™)
The ESAB OK 73.79 VP is a nickel-alloyed, low-hydrogen electrode designed for welding 3.5% Ni steels. Featuring VacPac™ technology, the electrodes are kept moisture-free, eliminating the need for re-baking, ensuring high-quality welds right from the package. With excellent impact toughness down to -101°C, this electrode is ideal for critical applications such as LPG tanks, ethane storage, and chemical plants.
Classified under AWS A5.5 E8016-C2 and approved by DNV-GL and RS, this electrode operates on both AC and DC currents. It delivers reliable welds with minimal hydrogen diffusion (< 5 mL/100g), thus reducing the risk of cracking even in the most demanding environments.
Key Features of ESAB OK 73.79 VP
- VacPac™ Technology: Keeps electrodes moisture-free, eliminating the need for re-baking and ensuring consistent weld quality.
- Low Hydrogen Content: Provides < 5.0 mL/100g diffusible hydrogen, reducing the risk of hydrogen-induced cracking.
- High Impact Toughness: Delivers excellent impact toughness down to -101°C, ensuring weld strength in cold environments.
- Nickel-Alloyed Electrode: Designed for welding 3.5% Ni steels used in LPG tanks, chemical plants, and more.
- Flexible Power Compatibility: Works with both AC and DC+/- currents, offering flexibility for various welding setups.
- AWS Certified: Meets AWS A5.5 E8016-C2 standards for performance in critical welding applications.
Key Industry Applications
- LPG Tank Construction: Ideal for welding large LPG storage tanks, offering welds that withstand low-temperature environments and high-pressure conditions.
- Chemical Plant Equipment: Ensures high-quality welds on equipment exposed to corrosive chemicals and extreme temperatures, therefore providing long-term durability and safety.
- Ethane Storage Facilities: Delivers strong, crack-resistant welds in ethane storage tanks, essential for operations under cryogenic conditions.
- Pressure Vessels: Provides reliable welds for pressure vessels, ensuring safety and structural integrity in the oil, gas, and petrochemical industries.
- Pipelines: Ensures durable, crack-resistant welds in pipelines carrying hazardous substances, providing high reliability in challenging environments.
Specifications
| Feature | Details |
|---|---|
| Alloy Type | Low alloyed (3.5% Ni) |
| Classification | AWS A5.5 E8016-C2 |
| Tensile Strength | 630 MPa |
| Yield Strength | 540 MPa |
| Impact Toughness | 35 J at -101°C |
| Diffusible Hydrogen | < 5 mL/100g |
| Welding Current | AC, DC+/- |
Choose the ESAB OK 73.79 VP for critical applications requiring strong, crack-resistant welds in industries such as LPG storage, chemical processing, and pressure vessel manufacturing. The VacPac™ technology ensures superior weld quality right out of the pack.
