Publish Time: 2025-11-10 Origin: Site
ER70S-6 is the most common and versatile choice for MIG (GMAW) welding of mild steel. But selecting the right diameter is crucial for achieving strong, clean welds and maximizing productivity.
4. Deposition Rate and Productivity: For high-volume, high-speed welding on thick materials in the flat position, larger diameters (1.0mm, 1.2mm) significantly increase your metal deposition rate and overall productivity.
For a detailed reference, please check our following specification sheet.
| Wire Diameter | Best For Material Thickness | Key Characteristics & Typical Use |
| 0.8 mm | Thin Sheet Metal (0.6 mm - 3 mm) | Excellent for out-of-position welds (vertical, overhead). Low heat input prevents burn-through. Ideal for auto body, exhaust, and light-gauge fabrication. |
| 0.9 mm | General Purpose (1.5 mm - 8 mm) | The most versatile and popular size.A great balance between deposition rate and control. Suitable for all positions with proper technique. |
| 1.0 mm | Medium Duty (3 mm - 10 mm) | Good for heavier fabrication where 0.9mm is at its limit. Higher deposition than 0.9mm. Best for flat and horizontal fillets. |
| 1.2 mm | Heavy Plate & Structural (5 mm and above) | High deposition rate for productive welding on thick sections. Requires a powerful welder (250A+). Primarily for flat and horizontal positions. |
| 1.6 mm | Very Heavy Plate & Sub-Arc (10 mm and above) | Used with high-current processes, often with automated equipment. Not for general manual welding. Requires a very powerful machine (300A+). |
For expert advice and premium welding wires, visit our website: www.szewelding.com
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