Welded joint and method of manufacturing welded joint
US-2016354870-A1 · Dec 8, 2016 · US
Welding metal having excellent low-temperature toughness and drop-weight characteristics
US8992698B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8992698-B2 |
| Application number | US-201113640212-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 8, 2011 |
| Priority date | Apr 9, 2010 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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Provided is a welding metal in which the chemical component composition thereof is appropriately controlled; an A value that is specified by a predetermined relational expression satisfies the requirement of being 3.8% to 9.0%; an X value that is specified by a predetermined relational expression satisfies the requirement of being 0.5% or greater; the area percentage of carbide particles having a circle-equivalent diameter of 0.20 μm or greater in the welding metal is 4.0% or less; and the number of carbide particles having a circle-equivalent diameter of 1.0 μm or greater is 1000 particles/mm 2 or less. This welding metal, which can exhibit not only high strength but also good low-temperature toughness and good drop-weight characteristics, is useful as a material for a pressure vessel in a nuclear power plant.
First claim
Opening claim text (preview).
The invention claimed is: 1. A welding metal, comprising iron and, by mass percent based on a total mass of the welding metal: from 0.02% to 0.10% of C; from 0.5% or less (excluding 0%) of Si; from 1.0% to 1.9% of Mn; from 2.7% to 8.0% of Ni; from 0.7% or less (excluding 0%) of Cr; from 0.05% to 0.8% of Mo; from 0.010% to 0.060% of Ti; from 0.010% or less (excluding 0%) of N; and from 0.015% to 0.060% of O, wherein: a total content of Cr and Mo is 0.8% o…
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Classifications
- B23K35/3066Primary
Operations & Transport · mapped topic
- C22C38/001Primary
Chemistry & Metallurgy · mapped topic
Physics · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8992698B2 cover?
- Provided is a welding metal in which the chemical component composition thereof is appropriately controlled; an A value that is specified by a predetermined relational expression satisfies the requirement of being 3.8% to 9.0%; an X value that is specified by a predetermined relational expression satisfies the requirement of being 0.5% or greater; the area percentage of carbide particles having…
- Who is the assignee on this patent?
- Nako Hidenori, Okazaki Yoshitomi, Yamashita Ken, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification B23K35/3066. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).