
The Hobart FabCO 811N1 is a premium 1/16-inch gas-shielded flux-cored wire designed for the rigorous demands of heavy industrial fabrication. Formulated with a nominal 1% Nickel content, this wire delivers exceptional mechanical properties, specifically targeting applications where low-temperature notch toughness is a critical requirement. It meets AWS E81T1-Ni1CJ H4 and Ni1MJ H4 classifications, making it a trusted choice for structural engineers and fabricators working with high-strength low-alloy steels.
One of the standout technical characteristics of the FabCO 811N1 is its H4 low hydrogen designation. This ensures a weld deposit with very low diffusible hydrogen levels, significantly reducing the risk of cold cracking in thick sections or restrained joints. The wire is compatible with both 100% CO2 and 75% Argon / 25% CO2 shielding gas mixtures, providing flexibility depending on the specific welding procedure specification (WPS) and desired arc characteristics. The 33 lb spool packaging fits standard industrial wire feeders, ensuring continuity in high-volume production environments.
Ideally suited for bridge fabrication, shipbuilding, and heavy equipment manufacturing, the FabCO 811N1 offers a fast-freezing slag system. This characteristic is essential for maintaining puddle control during out-of-position welding, including vertical-up and overhead passes. While it is an excellent choice for welding weathering steels (such as ASTM A588 and A709), it is important to note that it is intended for applications where a precise color match to the weathered steel is not required. With its combination of superior toughness, low spatter, and excellent slag detachability, this wire optimizes both weld quality and operator productivity.
| Additional Information |
|---|
| Brand:Hobart |
| Diameter:1.6mm (1/16") |
| Packaging Description:33lb spool |
| Spool Size:33 lb Spool |
| Weld Process:Flux-Cored (FCAW) |
| Position:All Position |
| AWS Spec:E81T1-Ni1CJ-H4 |
| Material Composition:Low Alloy Steel |
| Shielding Gas Requirement:100% CO2, 75% Argon / 25% CO2 |
| Alloy Content:Nominal 1% Nickel |
| Hydrogen Content:H4 (Low Hydrogen) |
| Current Type:DCEP |




