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SAE3
The ultimate electrode for welding all types of steels, without any danger of cracking or breakage.
- An engineered deposit chemistry that has the perfect ratio of metallics to offer crack resistance far superior to any other brand.
- Special flux formulation eliminates slag interference in horizontal fillets.
| International Specifications | AWS/ASME 11 C SFA 5.4 E312-16
DIN 8556 E29 9 R 23
ISO 3581 E29.9 R 23
BS 2926 - 1984 29.9R |
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APPLICATIONS:
Due to exceptional strength and crack resistance, it is ideal for repairing tools, dies, spring steel and any dissimilar metal combinations, except for the aluminum and copper alloys. It is also recommended for repairing worn parts and as an underlay for hardfacing.
MICROSTRUCTURE:
A duplex austenite/ferrite structure with about 40% ferrite.
TYPICAL MECHANICAL PROPERTIES:
| Undiluted Weld Metal | Maximum Value Up to: |
|---|
| Tensile Strength as welded | 128,000 psi (880 N/mm2) |
| work hardened | 186,000 psi (1280 N/mm2) |
| Yield Strength | 90,000 psi (630 N/mm2) |
| Elongation | 32% |
| Reduction of area | 25% |
| Impact Energy | 50J: 68oF (20oC) |
| Hardness | Rockwell B-97 Brinell 320 |
Recommended Current: DC reverse polarity (Electrode +) or AC
RECOMMENDED AMPERAGE SETTINGS:
| Diameter (mm) | 3/32 (2.5) | 1/8 (3.25) | 5/32 (4.0) |
|---|
| Minimum Amperage | 35 | 60 | 75 |
| Maximum Amperage | 70 | 110 | 140 |
WELDING POSITION: Flat, Horizontal, Vertical up, Overhead
WELDING TECHNIQUES:
The area in which the weld is to be made should be free of rust, grease, paint and other materials which would cause weld contamination. A 90o vee joint should be used when joining heavy sections. Maintain a short arc length and use stringer beads.
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