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A low hydrogen, iron powder type electrode for welding steels having tensile strength up to 70 kgf/mm2. Ideally suited for welding fine-grained steels, high tensile steels used in bridges, penstocks, tanks, etc. The weld metal possesses o excellent toughness at sub-zero temperatures down to minus 50°C. Typical applications include welding of grain-refined steels, Q&T steels, HSLA steels, pressure vessels, structural fabrication, etc.
1. Ensure the electrodes are dry. Re-dry the electrodes at 250-300°C for one hour.
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 | Ni | Mo | S | P |
Percent | 0.065 | 1.20 | 0.40 | 1.20 | 0.50 | 0.025 | 0.025 |
UTS | YS | Elongation | CVN Impact Strength |
(MPa) | (MPa) | (L= 5d)% | at Minus 51°C (Joules) |
673 | 584 | 22 | 40 |
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 |