Description
Overview
Forney 42291 (42291) is designed for MIG welding mild steel in auto body repair, fabrication, and general industrial applications. Classified as ER70S-6, this 0.030 in. diameter copper-coated wire delivers 70,000 PSI tensile strength and is formulated to produce quality welds even on contaminated base metals.
Technical Specifications
| Manufacturer Part Number (MPN) | 42291 |
|---|---|
| Brand | Forney |
| Classification | ER70S-6 |
| Material | Mild Steel, Copper-Coated |
| Wire Diameter | 0.030 in. |
| Tensile Strength | 70,000 PSI |
| Polarity | DCEP |
| Shielding Gas Required | CO2 or Argon/CO2 (not included) |
| Spool Weight | 2 lb |
| Package Weight | 2.12 lb |
| Packaging Type | Boxed |
| Label Color Coding | Yellow |
Technical Features
- High manganese and silicon content: Provides superior cleaning action on rusty or dirty steel, expanding usable base metal conditions without requiring extensive surface preparation.
- All-position copper-coated wire: Copper coating enhances feedability and arc performance, supporting consistent wire delivery across welding positions.
- High silicon formulation for weld puddle fluidity: Produces a smoother bead appearance, reducing the time and effort required for post-weld grinding.
- ER70S-6 classification at 70,000 PSI tensile strength: Meets established wire standards for structural integrity on carbon steel sheet and plate applications.
- DCEP polarity: Compatible with standard MIG welding machine configurations for direct current electrode positive operation.
- Requires CO2 or Argon/CO2 shielding gas: Shielding gas is not included and must be sourced separately prior to use.
Applications
- Auto body repair and sheet metal fabrication
- Butt and fillet welding of carbon steel sheet and plate
- Industrial, farm, and construction equipment fabrication
- Automotive equipment repair and assembly
- Not recommended for use on aluminum or aluminum engine components
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