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US 11,691,227 B2Granted
Solid wire for electroslag welding, and welding joint
AssigneeKobe Steel, Ltd.
InventorsHidenori Nako, Tomoko Sugimura, Keito Ishizaki, Yoshihiko Kitagawa
Life of this patent
Estimating the term…
Abstract
A solid wire for electroslag welding, including Fe and, by mass % based on a total mass of the wire: C: more than 0% and 0.03% or less; Si: more than 0% and 0.10% or less; Mn: more than 0% and 0.25% or less; Ni: 10.5%-14.0%; S: more than 0% and 0.010% or less; Al: more than 0% and 0.250% or less; REM: 0.002%-0.080%; and O: more than 0% and 0.0090% or less.
Claims10
A solid wire, comprising Fe and, by mass % based on a total mass of the solid wire:
- C:
- more than 0% and 0.010% or less;
- Si:
- more than 0% and 0.10% or less;
- Mn:
- more than 0% and 0.25% or less;
- Ni:
- 10.5% to 14.0%;
- S:
- more than 0% and 0.010% or less;
- Al:
- more than 0% and 0.250% or less;
- REM:
- 0.002% to 0.080%;
- Cu:
- more than 0% and 1.00% or less;
- and
- O:
- more than 0% and 0.0090% or less,
- Cr:
- 0.5% or less,
- with the balance being Fe as a main component and unavoidable impurities, and optionally the solid wire plated with Cu.
19 more elements
A weld joint comprising a weld metal, the weld metal comprising Fe and, by mass %:
- C:
- more than 0% and 0.07% or less;
- Si:
- more than 0% and 0.30% or less;
- Mn:
- more than 0% and 0.40% or less;
- Ni:
- 10.5% to 14.0%;
- S:
- more than 0% and 0.0065% or less;
- Al:
- 0.008% to 0.220%,
- O:
- more than 0% and 0.040% or less;
- and
- N:
- 0% or more and 0.010% or less,
- Cr:
- 0.5% or less;
- Cu:
- more than 0% and 1.00% or less,
- with the balance being Fe as a main component and unavoidable impurities,
- wherein a total area fraction SA (%) of high-angle grains with an equivalent circle diameter of 5 μm to 30 μm among high-angle grains surrounded by grain boundaries with a crystal orientation of 15° or more is 30% or more.
20 more elements
Dependencies are inferred from the claim text.