Description
NSS-310 is a high-performance rutile-coated electrode designed specifically for welding 310-grade austenitic stainless steel. The electrode delivers a high-alloy weld deposit containing approximately 25% Chromium and 20% Nickel, ensuring superior resistance to oxidation, scaling, and heat deterioration. Its weld metal retains ductility even at elevated operating temperatures—making it ideal for furnaces, burners, petrochemical installations, and other heat-exposed fabrications.
With a smooth, even arc and low spatter, NSS-310 provides exceptional puddle control and easy manipulation across all welding positions. The self-releasing slag system contributes to fast, efficient finishing, reducing downtime and post-weld cleanup.
TYPICAL CHEMICAL COMPOSITION OF WELD METAL (%)
| C | Si | Mn | P | S | Ni | Cr |
|---|---|---|---|---|---|---|
| 0.10 | 0.41 | 2.19 | 0.018 | 0.010 | 20.75 | 25.98 |
TYPICAL MECHANICAL PROPERTIES
| Property | Value |
|---|---|
| Tensile Strength | 581 N/mm² (84 KSI) |
| Elongation | 41% |
SIZES & RECOMMENDED CURRENT RANGE
Polarity: AC, DC(+)
| Diameter (mm) | Length (mm) | Flat (A) | Vertical / Overhead (A) |
|---|---|---|---|
| 2.5 | 300 | 50–80 | 45–75 |
| 3.2 | 350 | 70–110 | 65–105 |
| 4.0 | 350 | 100–150 | 95–140 |
| 5.0 | 350 | 130–180 | — |
WELDING POSITIONS
All Positions
APPROVALS
CE
APPLICATIONS
-
Fabrication of 310 stainless steel structures
-
Components in the chemical, petrochemical, and power industries
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High-temperature equipment such as furnaces, burners, heaters
-
Repair and maintenance of oxidation-resistant stainless parts
REMARKS & BEST PRACTICES
-
Keep joints clean and free of contaminants
-
Use lowest possible current with short arc length
-
Avoid touching the molten pool with electrode coating
-
Prefer short, intermittent welds to reduce overheating
-
Avoid excessive weaving to prevent dilution
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Use dry electrodes; re-dry if needed at 300°C for 2 hours
-
Strike exposed wire on a scrap plate before starting the weld
IMPORTANT NOTICE
All technical values are typical and based on controlled test welds. Actual results vary depending on welding procedure, joint design, material chemistry, and operator technique. Qualification testing is recommended for critical fabrication work.





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