Flux-cored wire
AssigneeKobe Steel, Ltd.
InventorsShinya Isono, Hideaki Takauchi
Life of this patent
Estimating the term…
Abstract
A flux-cored wire for gas-shielded arc welding in which a steel sheath is filled with flux and the flux-cored wire contains Fe, C, Mn, Cr, Ni, Mo, Nb, V, P, and S within controlled amounts, and further contains, with respect to the total mass of the wire, TiO2: 3.0 mass % or more and 9.0 mass % or less, a SiO2 conversion value of metal Si and a Si compound: 0.5 mass % or more and 1.5 mass % or less, Co: 0.10 mass % or more and 1.50 mass % or less, N: 0.015 mass % or more and 0.060 mass % or less, Li: 0.11 mass % or less, Mg: 0.85 mass % or less, and a total amount of K and Na: 0.3 mass % or less.
Claims20
A flux-cored wire for gas-shielded arc welding, comprising:
- a flux;
- and
- a steel sheath is-filled with the flux,
- wherein the flux-cored wire comprises, based on a total mass of the wire:
- Fe:
- 75 mass % or more and 85 mass % or less;
- C:
- 0.05 mass % or more and 0.25 mass % or less;
- TiO2:
- 3.0 mass % or more and 9.0 mass % or less;
- a SiO2 conversion value of metal Si and a Si compound:
- 0.5 mass % or more and 1.5 mass % or less;
- Mn:
- 0.5 mass % or more and 2.0 mass % or less;
- Cr:
- 8.0 mass % or more and 11.0 mass % or less;
- Ni:
- 0.05 mass % or more and 1.0 mass % or less;
- Mo:
- 0.7 mass % or more and 1.5 mass % or less;
- Co:
- 0.10 mass % or more and 1.50 mass % or less;
- Nb:
- 0.01 mass % or more and 0.15 mass % or less;
- V:
- 0.1 mass % or more and 0.5 mass % or less;
- N:
- 0.015 mass % or more and 0.060 mass % or less;
- Li:
- 0.11 mass % or less;
- Mg:
- 0.85 mass % or less;
- a total amount of K and Na:
- 0.3 mass % or less;
- P:
- 0.020 mass % or less;
- and
- S:
- 0.020 mass % or less.
Dependencies are inferred from the claim text.