ROYAL PRIME 309L is a flux cored stainless steel wire designed for:Welding dissimilar steels (stainless steel to carbon steel or low alloy steel).Buffer layers before hardfacing or stainless steel cladding.Applications requiring high resistance to oxidation and corrosion at elevated temperatures.Low carbon level ensures excellent resistance to intergranular corrosion. Stable arc, low spatter, and smooth bead appearance in all-position welding.
| C | Mn | Si | Cr | Ni | Mo | S | P | Cu |
| ≤ 0.04 | 0.5 – 2.5 | 0.30 – 1.00 | 22.0 – 25.0 | 12.0 – 14.0 | ≤ 0.50 | ≤ 0.04 | ≤ 0.04 | ≤ 0.50 |
| Property | UTS (MPa) | Yield Strength (MPa) | Elongation (%) | Impact Toughness (J @ -20 °C) |
| Typical Values | 580 – 650 | 380 – 450 | 30 – 35 | 40 – 55 |
| Welding Position | Current (A) | Voltage (V) | Shielding Gas (typical) | Gas Flow (L/min) |
| Flat / Horizontal | 180 – 300 | 28 – 34 | Ar + 20–25% CO₂ or 98% Ar + 2% O₂ (alt) | 12 – 20 |
| Vertical / Overhead | 150 – 250 | 26 – 32 | Ar + 20–25% CO₂ or 98% Ar + 2% O₂ (alt) | 12 – 18 |
Share your welding process, base material and application requirements. Our team will help you select the suitable product.
Tested for consistent performance.
Reliable distribution and timely supply.
Manufacturing capacity you can depend on.
Technical guidance for product selection.
