JP2010111950A5 - - Google Patents
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- JP2010111950A5 JP2010111950A5 JP2010014490A JP2010014490A JP2010111950A5 JP 2010111950 A5 JP2010111950 A5 JP 2010111950A5 JP 2010014490 A JP2010014490 A JP 2010014490A JP 2010014490 A JP2010014490 A JP 2010014490A JP 2010111950 A5 JP2010111950 A5 JP 2010111950A5
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- 229910001335 Galvanized steel Inorganic materials 0.000 claims 4
- 239000008397 galvanized steel Substances 0.000 claims 4
- 229910000831 Steel Inorganic materials 0.000 claims 3
- 239000010959 steel Substances 0.000 claims 3
- 238000005246 galvanizing Methods 0.000 claims 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910001566 austenite Inorganic materials 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 238000005098 hot rolling Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 229910000529 magnetic ferrite Inorganic materials 0.000 claims 1
- 229910000734 martensite Inorganic materials 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 230000000717 retained Effects 0.000 claims 1
- 230000001629 suppression Effects 0.000 claims 1
- 229910000859 α-Fe Inorganic materials 0.000 claims 1
Claims (4)
Ｓｉ：０．５〜３％、
Ｍｎ：１〜４％、
Ｃｒ：０．０３〜１％、
Ａｌ：１．５％以下（０％を含まない）、
Ｐ ：０．０３％以下（０％を含まない）、
Ｓ ：０．０３％以下（０％を含まない）、
Ｔｉ：０．００３〜１％を含有し、
更に、
Ｃｕ：０．２５〜５．０％および、
Ｎｉ：０．０５〜１．０％を含有すると共に、ＣｕとＮｉの含有量が下記（１）式を満足し、
残部が鉄および不可避不純物からなる鋼を熱間圧延して得られる素地鋼板に、溶融亜鉛めっきを施してから、めっき層を合金化した合金化溶融亜鉛めっき鋼板であり、
金属組織が、フェライトとマルテンサイトの合計が７０面積％以上で、残留オーステナイトが１面積％以下（０面積％を含む）に抑制されていることを特徴とする合金化溶融亜鉛めっき鋼板。
［Ｃｕ］／［Ｎｉ］≧６ ・・・（１）
［（１）式中、［ ］は元素の含有量（質量％）を示す。］ C: 0.02 to 0.25% (meaning mass%, the same shall apply hereinafter),
Si: 0.5-3%,
Mn: 1-4%
Cr: 0.03 to 1%,
Al: 1.5% or less (excluding 0%),
P: 0.03% or less (excluding 0%),
S: 0.03% or less (excluding 0%),
Ti: 0.003 to 1% containing,
Furthermore,
Cu: 0.25 to 5.0% and
Ni: It contains 0.05 to 1.0%, and the contents of Cu and Ni satisfy the following formula (1),
It is an alloyed hot-dip galvanized steel sheet in which a plated layer is alloyed after hot-dip galvanizing is performed on a base steel sheet obtained by hot rolling steel composed of iron and inevitable impurities.
An alloyed hot-dip galvanized steel sheet characterized in that the total microstructure of ferrite and martensite is 70 area% or more and the retained austenite is suppressed to 1 area% or less (including 0 area%).
[Cu] / [Ni] ≧ 6 (1)
[In the formula (1), [] represents the element content (mass%). ]
Ｖ ：１％以下（０％を含まない）、
Ｎｂ：１％以下（０％を含まない）、および
Ｍｏ：１％以下（０％を含まない）よりなる群から選ばれる１種以上を含有する請求項１に記載の合金化溶融亜鉛めっき鋼板。 Furthermore, as other elements,
V: 1% or less (excluding 0%),
The alloyed hot-dip galvanized steel sheet according to claim 1, comprising at least one selected from the group consisting of Nb: 1% or less (not including 0%) and Mo: 1% or less (not including 0%). .
Ｂ ：０．１％以下（０％を含まない）を含有する請求項１または２に記載の合金化溶融亜鉛めっき鋼板。 Furthermore, as other elements,
The alloyed hot-dip galvanized steel sheet according to claim 1 or 2, containing B: 0.1% or less (excluding 0%).
Ｃａ：０．００５％以下（０％を含まない）および／または
Ｍｇ：０．０１％以下（０％を含まない）を含有する請求項１〜３のいずれかに記載の合金化溶融亜鉛めっき鋼板。 Furthermore, as other elements,
The alloyed hot dip galvanizing according to any one of claims 1 to 3, containing Ca: 0.005% or less (excluding 0%) and / or Mg: 0.01% or less (not including 0%). steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010014490A JP5128619B2 (en) | 2010-01-26 | 2010-01-26 | Alloy hot-dip galvanized steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010014490A JP5128619B2 (en) | 2010-01-26 | 2010-01-26 | Alloy hot-dip galvanized steel sheet |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008285705A Division JP4629138B2 (en) | 2008-11-06 | 2008-11-06 | Alloy hot-dip galvanized steel sheet |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2010111950A JP2010111950A (en) | 2010-05-20 |
| JP2010111950A5 true JP2010111950A5 (en) | 2010-08-05 |
| JP5128619B2 JP5128619B2 (en) | 2013-01-23 |
Family
ID=42300726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010014490A Expired - Fee Related JP5128619B2 (en) | 2010-01-26 | 2010-01-26 | Alloy hot-dip galvanized steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5128619B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111801436B (en) * | 2019-02-05 | 2021-10-29 | 日本制铁株式会社 | Steel member, steel sheet, and method for producing same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4629138B2 (en) * | 2008-11-06 | 2011-02-09 | 株式会社神戸製鋼所 | Alloy hot-dip galvanized steel sheet |
-
2010
- 2010-01-26 JP JP2010014490A patent/JP5128619B2/en not_active Expired - Fee Related
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