StarBlaze MIG 2209
AWS A5.9: ER 2209 | EN ISO 14343-A: G 22 9 3 N L
StarBlaze MIG 2209 is a precision layer-wound solid MIG welding wire for duplex stainless steels. It deposits a low-carbon, 22Cr/8Ni/3Mo weld metal with nitrogen addition to deliver excellent resistance against pitting and stress corrosion cracking, especially in chloride-rich environments. With 2–3% higher nickel content than base metals, the wire ensures a balanced austenite–ferrite microstructure in the as-welded condition. Ideal for pipe and plate fabrication in aggressive chemical and marine service.
Available Packs
- Diameters: 0.6 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.6 mm
- Pack sizes: 12.50 kg, 15.00 kg
Key Features
- Designed for duplex stainless steel welding
- Excellent resistance to pitting and stress corrosion cracking
- Balanced austenite-ferrite structure for enhanced toughness
- Nickel overmatch ensures weld metal integrity
- Smooth feeding with precision layer-wound spools
- Compatible with short, spray, and pulsed arc modes
- Stable arc performance with Ar+O₂ or Ar+CO₂ gas blends
Industries
- Offshore and Marine Structures
- Desalination and Water Treatment Equipment
- Chemical and Petrochemical Plants
- Heat Exchangers and Piping
- Pressure Vessels and Process Equipment
Processes
- MIG/MAG welding with Ar+2%O₂ or Ar+0.5–5%CO₂
- Duplex stainless steel welding for pipes, plates, and fittings
- All-position welding with pulsed arc flexibility
- Suitable for critical corrosion-prone service applications
Additional Details
- Shielding Gas: EN ISO 14175 – M12, M13
- Current: DC (+)
- Welding Positions: All positions with pulsed arc
- Suitable for duplex stainless steel welding in plate and pipe fabrication
- Excellent resistance to pitting and stress corrosion in chloride-rich environments
- Nickel content ensures optimal austenite-ferrite balance
- Storage: Keep dry; avoid condensation
Product Details
Typical Chemical Composition (%)
| C | Mn | Si | Cr | Ni | Mo | Cu | S | P | N2 |
| 0.03 max | 0.50 – 2.00 max | 0.90 max | 21.50 – 23.50 | 7.50 – 9.50 | 2.50 – 3.50 | 0.50 max | 0.03 max | 0.03 max | 0.08 – 0.20 |
Typical All-Weld Mechanical Properties
| Yield Strength (N/mm²) | Tensile Strength (N/mm²) | Elongation A5 (%) | Impact Energy ISO-V(J) 20°C |
| ≥ 480 | ≥ 690 | ≥ 22% | ≥ 50 |
Recommended Welding Data
| Shielding Gas | Unit | 0.8 | 1.0 | 1.2 |
| Ar + 1–2% CO₂ | Amp | 40-120 | 80-160 | 100-210 |
| Volt | 15-20 | 16-22 | 17-22 | |
| Ar + 1–2% O₂ | Amp | 160-210 | 180-280 | 200-300 |
| Volt | 24-28 | 24-30 | 24-30 |
