説明
特徴
LKE-NiCrFe-2 is a low hydrogen type and nickel-based covered electrode. The welding can be done in all position with good X-ray soundness and good crack resistance. The weld metal provides excellent mechanical properties which can satisfy the requirements of API and ASME for LNG tanks.
アプリケーション
It is suitable for welding of ASTM B163/166/167/168,Inconel600,cryogenic steels, martensitic to austenitic steels, dissimilar steels etc.
使用上の注意
1.Dry the electrode at 350-400°C for 30-60 minutes.
2.Use small amperage and keep the arc as short as possible.
3.Keep the interpass at 150°C.
4.Take back-step method to prevent blowhole at arc starting.
分類
AWS A5.11 ENiCrFe-2
JIS Z3224 DNiCrFe-2
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 | Cr | ニー | Nb | フェ | モ |
| 0.08 | 1.90 | 0.40 | 0.009 | 0.008 | 14.20 | 68.00 | 1.76 | 9.20 | 2.40 |
溶接金属の代表的な機械的性質
| TS N/mm² | EL % | IV -196°C J |
| 595 | 43 | 72 |
サイズと推奨電流範囲（ACまたはDC+)
| 直径 (mm) | 2.6 | 3.2 | 4.0 | |
| 長さ (mm) | 300 | 350 | 350 | |
| アンペア | F | 60-90 | 70-120 | 100-150 |
| V&OH | 55-80 | 65-110 | 80-130 | |
| パックあたりの重量（kg） | 5 | 5 | 5 | |
| カートンあたりの重量（kg） | 20 | 20 | 20 | |
