245011721 - ESAB Dual Shield II 80 Ni1 H4 .045 Flux-Cored Wire 15kg

Technical Overview of ESAB Dual Shield II 80 Ni1 H4

The ESAB Dual Shield II 80 Ni1 H4 is a premium gas-shielded flux-cored wire designed for the welding of high-strength, low-alloy steels requiring excellent toughness at low temperatures. This consumable is formulated with a nominal 1% Nickel content, which significantly enhances the Charpy V-Notch impact properties, making it suitable for service environments where temperatures may drop to -40°C (-40°F). The wire is manufactured to meet the stringent AWS A5.29 specifications, carrying the classifications E81T1-Ni1C-JH4 and E81T1-Ni1M-JH4, ensuring reliability in critical structural applications.

One of the defining technical characteristics of this wire is its "H4" diffusible hydrogen designation. This indicates that the weld metal contains less than 4ml of diffusible hydrogen per 100g of deposited metal, drastically reducing the susceptibility to hydrogen-induced cracking (cold cracking). This feature is paramount when welding thick sections or restrained joints in industries such as offshore fabrication, shipbuilding, and heavy equipment manufacturing. The wire operates effectively with both 100% CO2 and 75% Argon / 25% CO2 shielding gas mixtures, providing flexibility depending on the available gas supply and desired arc characteristics.

The .045-inch diameter offers a balance between deposition rate and puddle control, allowing for all-position welding capabilities. The slag system is designed to freeze quickly enough to support vertical-up and overhead welding while remaining fluid enough to wet out smoothly in flat and horizontal positions. The resulting weld bead exhibits a smooth profile with minimal spatter, reducing post-weld cleaning time. Mechanical properties typically include a tensile strength exceeding 80,000 psi (550 MPa) and yield strength over 60,000 psi (415 MPa), aligning with the requirements for 80-series filler metals.

Packaged in a 15 kg (approx. 33 lb) spool, this product is compatible with standard wire feeders found in industrial MIG welding setups. It utilizes DCEP (Direct Current Electrode Positive) polarity. Proper storage is recommended to maintain the low-hydrogen characteristics; the wire should be kept in a dry environment and protected from moisture absorption to ensure optimal performance and code compliance.