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Low hydrogen, iron powder electrode producing a weld deposit containing 5Cr - 0.5Mo, which has excellent creep resistance at elevated temperatures up to 550°C. Typical applications include welding of 4-6% Cr steels in oil refinery, chemical plant and equipment.
1. Ensure the electrodes are dry. Re-dry the electrodes at 300°C for 2 hours.
2. Use short arc, low current and stringer beads.
NOTE : Low carbon version Cromotherme - 5L conforming to AWS : E8018-B6L is also available.
Element | C | Mn | Si | Cr | Mo | S | P |
Percent | 0.06 | 0.90 | 0.40 | 5.20 | 0.50 | 0.020 | 0.020 |
(PWHT : 740°C FOR 1 HR)
UTS | YS | Elongation | CVN Impact Strength | Creep Strength |
(MPa) | (MPa) | (L= 5d)% | at RT (Joules) | at 550°C (1% offset in 10,000 hrs) |
614 | 505 | 22.0 | 60 | 7 kgf/mm2 |
Size (mm) Dia x Length | 6.3x450 | 5x450 | 4x350 | 3.15x350 | 2.5x350 |
Current Range (Amps) | 240-300 | 180-240 | 140-180 | 100-130 | 70-100 |
Qty. (Pcs./Carton) | 25 | 35 | 55 | 75 | 125 |