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Mo pearlite heat-resisting Steel electrode
Mo Pearlite heat-resisting Steel Electrode - R107 AWS E7015-A
It's an excellent heat-resisting steel electrodes with 0.5% Mo pearlite low hydrogen sodium type coating. It should be connected with negative polarity on DC, and use short arc. Welding can be done in all position. It should be heated to 90-100oC before using. After welding, it should be reheated at the temperature of 605-635oC.
Application:
Used to weld the boiler pipe whose work termperature is under 510oC, also use in normal low alloy high strength steel structure.
Chemical composition of melting metal
C: 0.12%max
Mn: 0.90%max
Si: 0.60%max
Mo: 0.4-0.65
S: 0.035%max
P: 0.035%max
Reference Electric Current
Diameter(mm) Electric Current
2.5 60-90
3.2 90-120
4.0 140-189
5.0 170-210
Note:
Necessary to clean the work piece and remove the impurities(eg.oil, grease rust, mositure etc), bake the electrode at the temperature in about 350oC for one hour before using.