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AS-3
Resists hydrogen cracking , radiongraphic weld bead
Alloy Base
Fe,MN,Si
Special Features
Recommendations
Low alloy sheets, Low carbon steels, medium carbon steels, mild steels, problem steels having sulphur contents high tensile steel. Very much useful where toughness and weld reliability are important
Principal Applications
Flanges, sulphur and phosphorous steel, heavy equipment aintenance, automobile chassis, tanks, pressure vessels. Structural joints, booms etc.
Procedure
Clean weld area & remove fatigued metal. For horizontal walding use short arc and contact technique. Use weaving and welding from bottom to upper side for vertical joints. Preheat beneficial for heavy section cast steels.
Tensile Strength
50-55 Kgf/mm2
Elongation
26-30%
Recommended Amperage
| Size (mm) | 2.5 | 3.15 | 4.0 | 5.0 |
| Current(AMPS) | 50-75 | 80-110 | 115-150 | 140-190 |