설명
특성:
LKE-7018-H4R is a low hydrogen type electrode for the welding of 490N/mm² grade high tensile steel. It is designed for single and multiple pass applications. The welding can be done with good appearance, stable arc and low spatter. With excellent mechanical properties, impact value at temperature of -40°C and low diffusible hydrogen.
애플리케이션:
It is suitable for welding of low alloy steels, medium carbon steels, heavy steel plates, cast steels, aluminum killed steel of LPG and especially for welding of steels with poor weldability.
사용 시 참고 사항:
1.Dry the electrodes at 350-400°C for 1-2 hours before use.
2.Keep the arc as short as possible to prevent moisture pick-up.
3.Take the back-step method to prevent blowholes at the arc starting.
분류:
AWS A5.1 E7018-H4R
EN 2560-A E 42 4 B 4 2 H5
용접 위치:
용접 금속의 일반적인 화학 성분(wt%)
| C | Mn | Si | P | S |
| 0.070 | 1.10 | 0.50 | 0.02 | 0.004 |
용접 금속의 일반적인 기계적 특성
| YP N/mm² | TS N/mm² | EL % | IV -40℃ J |
| 490 | 560 | 29 | >47 |
크기 및 권장 전류 범위(AC 또는 DC+)
| 지름(mm) | 2.6 | 3.2 | 4.0 | 5.0 | |
| 길이(mm) | 350 | 350 | 450 | 450 | |
| 앰프 | F | 80-100 | 130-150 | 160-190 | 200-240 |
| V&OH | 70-100 | 90-150 | 130-160 | 170-200 | |
| 팩당 무게(kg) | 4/5 | 5 | 5 | 5 | |
| 상자당 무게(kg) | 20 | 20 | 20 | 20 | |
