SMAW Electrodes
AMA 1436N
-
E 11018M-H4R
AWS/ASME SFA-5.5:
Application/properties:
Low hydrogen basic electrode with high strength and good impact strength is used for welding high strength steels HY80. The hydrogen content in the weld pool is at the minimum possible standard and the electrode coating using nano materials is resistant to moisture absorption in humid environments with 80% humidity for 9 hours. This electrode meets the stringent requirements of the MIL-DTL-222000/1H standard.
Weld metal analysis in % (typical values):
| C | Mn | Si | Mo | Ni | P | S |
|---|---|---|---|---|---|---|
| 0.04 | 1.7 | 0.4 | 0.42 | 2.2 | 0.01 | 0.01 |
Mechanical Properties of all-weld metal:
(single values are typical values)
| Tensile Strength ( N/mm 2 ) | Yield Strength ( N/mm 2 ) | Elongation A4 (%) | Impact energy (J) ISO - V 51°C- | Heat treatment |
|---|---|---|---|---|
| 750 | 690 | >20 | >90 | AW |
| 750 | 680 | > 20 | >60 | T |
AW : As weld
T : Tempered 550 ̊C /1h
| Welding Parameters | ||
|---|---|---|
| Diameter (mm) | Length (mm) | Amperage (A) |
| 2.5 | 350 | 65– 90 |
| 3.25 | 450 | 90 – 130 |
| 4.0 | 450 | 140– 185 |
| 5.0 | 450 | 180– 240 |
Materials:
| MILStandard | HY-80 |
Rebaking:
- Just Consume Dry Electrode
- Rebaking: required on 300°C to 350°C for 2 hours.
