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Classification :
Description :
A basic coated, low hydrogen electrode which deposits 2.25% Cr - 1% Mo weld metal. Suitable for welding 2.25% Cr- 1% Mo, Cr-Mo-V steels as well as cast steels of similar composition. The welds are of radiographic quality. Excellent strength and creep resistance at elevated temperature up to 575oC.
Applications :
Chemical Composition of Weld Al (wt.%)
C | Mn | Si | Cr | Mo |
0.05-0.12 | 0.9 max | 0.8 max | 2.0-2.50 | 0.9-1.2 |
Mechanical Properties Of Weld Metal :
YS | 51 - 57 Kgf/mm2 |
UTS | 65 - 72 Kgf/mm2 |
Elongation | 18 - 24 % |
Current Conditions : AC (50V) / DC ( + )
Size (mm) | 2.5 x 350 | 3.15 x 450 | 4 x 450 | 5 x 450 |
Amps | 70 - 100 | 100 - 140 | 140 - 180 | 180 - 220 |
Welding Positions : F, H, V-up, OH
Recommendations : Re-dry the electrodes at 350oC for one hour or at 250oC for two hours. Keep the re dried electrodes in a holding oven having 120o-150oC temperature. Use the electrodes directly from the holding oven. The pre-heat and Inter pass temperature should be maintained at 160oC - 190oC. The welded section should be stress-relieved at 690oC at-least for one hour.