>Low Temperature Steel

LC-318N
LC-318N is an iron powder-low hydrogen type covered electrode to be used in all-positionwelding of aluminum-killed steel for low-temperature service.It provides excellent notch toughness at -45℃ and good usability in direct current welding.
- AWS
- A5.1 E7018-1
- KS
- -
- JIS
- Z 3211 E4918-1
- EN
- ISO 2560-A E 42 3 B 3 2
ISO 2560-B E4918 AP U
Applications | Welding of LPG tankers, LPG storage tanks equipment for low-temperature service, and offshore structures to be used at low-temperature districts. |
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Characteristics | LC-318N is an iron powder-low hydrogen type covered electrode to be used in all-position welding of aluminum-killed steel for low-temperature service. It provides excellent notch toughness at -45℃ and good usability in direct current welding. |
Notes on usage | (1) Welding heat input must be controlled in order to get required impact value, since notch toughness tends to be decreased by excessive heat input. (2) Preheating at 50~100 is needed depending upon the kind of steel and its thickness. (3) Dry the electrodes at 350~400℃ for about one hour before use. (4) Adopt the backstep method or strike the arc previously on a small steel piece to prevent blowholes at the arc striking in a groove. |
Shielding Gas | - |