Low manganese welding electrodes
AssigneeLincoln Global, Inc.
InventorsJonathan Ogborn, Daniel Langham, Radhika Panday
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Abstract
Flux cored welding electrodes comprise a iron based metal sheath and either a flux or metal core within the sheath, enclosing core ingredients. The core ingredients and sheath together comprise, in weight percentages based on the total weight of the electrode, very low levels of manganese. While having low levels of manganese the electrodes satisfy the strength and safety requirements required of commercial electrodes. Embodiments contain manganese in the range of 0.09 to 0.19% by weight of the electrode, along with other components.
Claims22
A flux cored electrode, comprising:
- an iron based metal sheath;
- and
- a titanium dioxide based flux core, which is surrounded by said iron based metal sheath;
- wherein said electrode further comprises, by weight of the electrode:
- manganese in the range of 0.09 to 0.19%;
- boron in the range of 0.003 to 0.014%;
- carbon in the range of 0.04 to 0.12%;
- silicon in the range of 0.3 to 0.8%;
- molybdenum in the range of 0 to 0.4%;
- titanium in the range of 0.15 to 0.42%;
- and
- aluminum in the range of 0.06 to 0.3%.
A flux cored electrode, comprising:
- an iron based metal sheath;
- and
- a calcium fluoride based flux core, which is surrounded by said iron based metal sheath;
- wherein said electrode further comprises, by weight of the electrode:
- manganese in the range of 0.09 to 0.19%;
- carbon in the range of 0.05 to 0.11%;
- silicon in the range of 0.5 to 1.1%;
- titanium in the range of 0.02 to 0.03%;
- and
- aluminum in the range of 0.06 to 0.16%.
A metal cored electrode, comprising:
- an iron based metal sheath;
- and
- an iron based core, which is surrounded by said iron based metal sheath;
- wherein said electrode further comprises, by weight of the electrode:
- manganese in the range of 0.09 to 0.19%;
- carbon in the range of 0.06 to 0.15%;
- silicon in the range of 0.4 to 1.1%;
- titanium in the range of 0.03 to 0.14%;
- and
- aluminum in the range of 0.06 to 0.18%.
Dependencies are inferred from the claim text.