説明
特徴
LKE-7018 is a low hydrogen type electrode for the welding of 490N/mm2 grade high tensile steel. The welding can be done with high deposition rate, good X-ray soundness and mechanical properties.
アプリケーション
It is especially suitable for nuclear power stations, petroleum chemical plants, and heavy steel plates.
使用上の注意
1.Dry the electrodes at 300-350oc for 60 minutes and keep at 100-150oc before use.
2.Keep the arc as short as possible.
3.Take the back-step method to prevent blow holes at the arc starting.℃
分類
AWS A5.1 E7018
EN4 EN499 E 42 3 B 3 2
JIS Z3212 D5016
溶接の位置
典型的な溶接金属の化学成分 (wt%)
| C | ムン | Si | P | S |
| 0.080 | 1.30 | 0.60 | 0.012 | 0.011 |
溶接金属の代表的な機械的性質
| Yield strength MPa(ksi) | Tensile strength MPa(ksi) | Elongation % | Charpy V-Notch (J) | |
| 515 | 585 | 29 | 0ºC | -29ºC |
| 221 | 172 | |||
サイズと推奨電流範囲（ACまたはDC℃℃)
| 直径 (mm) | 2.6 | 3.2 | 4.0 | 5.0 | |
| 長さ (mm) | 350 | 350 | 400 | 400 | |
| アンペア | F | 55-85 | 90-130 | 130-180 | 180-240 |
| V&OH | 50-80 | 85-120 | 110-160 | 150-200 | |
| パックあたりの重量(kg) | 4/5 | 5 | 5 | 5 | |
| カートンあたりの重量（kg） | 20 | 20 | 20 | 20 | |
