Canadian owned and operated
The Bonarc ER308L is a premium quality solid TIG welding rod complying with AWS A5.9 specifications. This 2.5mm diameter filler metal is formulated with a nominal composition of 20% Chromium and 10% Nickel, designed specifically for joining austenitic stainless steels of similar composition, such as AISI 301, 302, 304, 305, and 308. It is also highly effective for welding the low-carbon variants (304L, 308L) due to its controlled chemistry.
The defining characteristic of this alloy is its extra-low carbon content (maximum 0.03%). This reduction in carbon significantly mitigates the risk of carbide precipitation at the grain boundaries during the welding thermal cycle. Consequently, the weld metal retains high resistance to intergranular corrosion (sensitization) without the need for post-weld heat treatment (solution annealing). This makes it the preferred choice for applications where the weldment will be exposed to corrosive environments or cryogenic temperatures.
Mechanically, the Bonarc ER308L produces weld deposits with excellent tensile strength and ductility. The 2.5mm diameter is versatile for root passes in pipe welding or fill passes in plate fabrication. It is designed for use with DCEN (Direct Current Electrode Negative) polarity and 100% Argon shielding gas to produce bright, clean welds with minimal oxidation. The silicon content is balanced to improve wetting action and puddle fluidity, ensuring smooth tie-ins and reduced operator fatigue.
| Additional Information |
|---|
| Brand:Bonarc |
| Diameter:2.5mm (3/32") |
| AWS Spec:ER308L |
| Grade:308 |
| Packaging:5 kg Tube |
| Weld Process:TIG (GTAW) |
| Rod Type:TIG Cut Length |
| Material Composition:Austenitic Stainless Steel (18% Cr - 8% Ni) |
| AWS Classification:ER308L |
| Shielding Gas Requirement:100% Argon |
| Polarity:DCEN |
| Weight:5kg |
| Packaging Description:5kg tube |
