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A basic coated low hydrogen iron powder type electrode for welding high tensile steels. The weld metal is of radiographic quality. Ideally suited for welding high tensile steels, Q&T steels, castings, etc. with UTS range of 71 kgf/mm2. The weld metal possesses high strength combined with excellent toughness at sub-zero temperatures.
1. Ensure the electrodes are dry. Re-dry the electrodes at 300°C for 2 hours.
2. When welding grain refined and Q&T steels, control the heat input by using:
(a) Stringer bead. (b) Control over preheat and interpass temperature. (c) Short arc.
Element | C | Mn | Si | Mo | Ni | S | P |
Percent | 0.06 | 1.85 | 0.45 | 0.40 | 0.30 | 0.018 | 0.018 |
UTS | YS | Elongation | CVN Impact Strength (J) |
(MPa) | (MPa) | (L= 5d)% | at Minus 50°C |
711 | 653 | 22 | 30 |
Size (mm) | 6.3x450 | 5x450 | 4x450 | 3.15x450 | 2.5x350 |
Current Range (Amps) | 280-350 | 200-250 | 140-190 | 100-140 | 70-100 |
Qty. (Pcs./Carton) | 25 | 35 | 55 | 75 | 125 |