MT-48电焊条
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MT-48 Corresponding to AWS E7018
JIS D5016
GB E5018
Low hydrogen electrode for welding high tensile steel
Description:
MT-48 is low hydrogen type electrodes containing iron powder for ordinary low alloy steel. As the covering contains iron powder, it welds with high efficiency, the melting rate is around 110%. It operates in all positions on DC and AC (AC open circuit voltage ≥ 70V.) The deposited metal has high plasticity, better toughness and crack resistance.
Applications:
For welding key structures and 50Kg/mm2 class high tensile steel of ships and bridges.
Typical Chemical Composition of Weld Metal (%)
|
C |
Mn |
Si |
S |
P |
|
0.08 |
1.00 |
0.50 |
0.014 |
0.02 |
Typical Mechanical Properties of Weld Metal
|
Yield Strength |
Tensile
Strength |
Elongation
(%) |
Charpy V
Impact Value
(-200C) |
Bend Test
(Degree) |
|
47Kg/mm2
480N/mm2 |
56Kg/mm2
570N/mm2 |
30 |
127J
12.7Kg-M |
180 |
Note on usage:
Dry electrodes at 3500C for one hour before use.