MIG WIRE ER347 S/S 1.2MM 15KG SPOOLS
Part No: M34712
Premium Stabilized Stainless Steel MIG Wire for High-Temperature & Corrosion-Resistant Applications
The ER347 Stainless Steel MIG Welding Wire (1.2mm, 15kg Spool) is a niobium-stabilized, solid corrosion-resistant welding wire engineered for MIG/GMAW welding of stabilized and non-stabilized austenitic stainless steels. Ideal for fabrication, maintenance, and manufacturing applications where high-temperature strength, resistance to intergranular corrosion, and weld integrity are critical.
Key Features
- Grade: ER347 — Niobium (Columbium) stabilized stainless steel wire
- Diameter: 1.2mm — versatile for medium to heavy-gauge welding
- Spool Weight: 15kg — ideal for continuous production runs, reducing downtime from frequent spool changes
- Process Compatibility: MIG/MAG (GMAW) welding
- Stabilization: Niobium addition prevents chromium carbide precipitation during welding and post-weld heat treatment
- Corrosion Resistance: Excellent resistance to intergranular corrosion, especially after exposure to 800–1600°F (427–871°C)
Typical Applications
- Welding of stabilized grades: 321, 347, and 348 stainless steels
- Chemical processing and petrochemical equipment
- Power generation and boiler components
- Exhaust systems and high-temperature piping
- Aerospace and heat-exchanger fabrication
- Food and beverage processing equipment requiring corrosion resistance
Why Choose ER347 Wire?
- Superior High-Temperature Performance: Maintains mechanical strength and corrosion resistance in elevated-temperature service (up to ~1600°F)
- Reduced Carbide Precipitation: Niobium stabilization minimizes sensitization, protecting weld integrity in the heat-affected zone
- Smooth Arc Characteristics: Consistent wire feeding and stable arc for clean, uniform weld beads
- Low Spatter, High Deposition: Optimized wire surface finish for efficient, low-maintenance welding
- Bulk 15kg Spool: Cost-effective for industrial and high-volume welding operations, minimizing wire changeovers
Specifications Summary
| Property | Detail |
|---|---|
| AWS Classification | ER347 |
| Wire Diameter | 1.2mm |
| Spool Weight | 15kg |
| Material | Stabilized Austenitic Stainless Steel |
| Stabilizing Element | Niobium (Nb) |
| Shielding Gas | Ar/CO2 or Ar/O2 blends (typically 98/2 or 95/5) |
| Recommended Use | Welding of Type 321/347/348 stainless steels |
Ideal For
Fabricators, welding contractors, industrial maintenance teams, and manufacturers working with stainless steel piping, pressure vessels, and equipment subjected to high heat or corrosive environments.
This product is priced “per KG”. The minimum quantity available to purchase is shown in the "Pack Qty".