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D&H 310-16 is a 25Cr - 20Ni type electrode for welding steels of similar composition. The weld metal has excellent resistance to oxidation and scaling up to 1200°C. The electrode is also suitable for welding of hardenable steels, clad steels, C-Mo, Cr-Mo steels where pre-heat and post weld heat treatment are not feasible.
1. Use low current, short arc length and minimum weaving.
2. Ensure the electrodes are dry. Re-dry the electrodes at 250-300°C for one hour.
NOTE : A high carbon version containing 0.4C D&H 310HC is also available for welding similar composition alloys like HK40, Thermalloy 47, etc.
Element | C | Mn | Si | Cr | Ni | S | P |
Percent | 0.17 | 2.40 | 0.50 | 25.8 | 21.0 | 0.020 | 0.020 |
UTS | Elongation |
(MPa) | (L= 5d)% |
604 | 32.0 |
Size (mm) | 5x350 | 4x350 | 3.15x350 | 2.5x350 |
Current Range (Amps) | 140-180 | 110-140 | 80-100 | 60-80 |
Weight / Carton (kgs) | 2.5 | 2.5 | 2.5 | 2.5 |