MT-48 (AWS E7018)
MT-48 Corresponding to AWS E7018
JIS D5016
PERMAMENT BRAND
LOW HYDROGEN ELECTRODE FOR WELDING
HIGH TENSILE STEEL
Description:
MT-48 is low hydrogen type electrodes containing iron power 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 50 Kg/mm2 class high tensile steel of ships and bridges.
Chemical Composition of Weld Metal (%)
C | MN | SI | S | P | |
AWS Standard | ≤0.15 | ≤1.60 | ≤0.75 | ≤0.035 | ≤0.035 |
Typical | 0.08 | 1.00 | 0.50 | 0.014 | 0.02 |
Mechanical Properties of Weld Metal
YIELD STRENGTH(Mpa) | TENSILE STRENGTH(Mpa) | Elongation(%) | Charpy V Impact Value (-30℃) | Bend Test (Degree) | |
AWS Standard | ≥400 | ≥490 | ≥22 | ≥27J | N.S. |
Typical | 480 | 570 | 30 | 127J | 180 |
Note on usage: Dry electrodes at 350℃ for one hour before use.
Packing: in cartons of 20kgs net each, consisting of 8boxes X 2.5kgs for 2.5mm & 4boes X 5kgs for other sizes. Then on pallets or without pallets are at the buyer's option.
