
OK Autrod 4043
OK Autrod 4043 is a widely used general-purpose aluminum welding and brazing alloy known for its excellent fluidity and high resistance to weld cracking. It produces bright, clean welds and is optimized for superior performance and productivity.
Key Features
- Virtually eliminates aluminum shavings by 99% using ESAB's unique NT wire technology
- Improved fluidity and wetting action for easier welding and better appearance
- Highly resistant to weld cracking and yields almost smut-free results
- Not recommended for anodizing and classified as non-heat treatable
Specifications
- Classifications: SFA/AWS A5.10 ER4043, EN ISO 18273 S Al 4043, AlSi5
- Alloy Composition: AlSi (5.00% Silicon, Remainder Aluminum)
- Shielding Gas: I1, I3 (EN ISO 14175)
- Tensile Strength (As Welded): 185 MPa
- Yield Strength: 85 MPa
- Elongation: 18%
- Available Wire Diameters: 0.8 mm to 2.4 mm
Applications
- General purpose aluminum welding and brazing
- Joining aluminum castings and extrusions
- Fabrication and repair work where post-weld anodizing is not required
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Specifications
| Alloy Type | AlSi |
| Elongation | 18% |
| Shielding Gas | I1, I3 (EN ISO 14175) |
| Yield Strength | 85 MPa |
| Classifications | SFA/AWS A5.10 ER4043, EN ISO 18273 S Al 4043, AlSi5 |
| Silicon Content | 5.00% |
| Tensile Strength | 185 MPa |
| Available Diameters | 0.8 mm, 0.9 mm, 1.0 mm, 1.2 mm, 1.6 mm, 2.0 mm, 2.4 mm |
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