JPS5726140A - High-strength cold-rolled steel plate with superior resistance spot weldability - Google Patents
High-strength cold-rolled steel plate with superior resistance spot weldabilityInfo
- Publication number
- JPS5726140A JPS5726140A JP9935880A JP9935880A JPS5726140A JP S5726140 A JPS5726140 A JP S5726140A JP 9935880 A JP9935880 A JP 9935880A JP 9935880 A JP9935880 A JP 9935880A JP S5726140 A JPS5726140 A JP S5726140A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- content
- rolled steel
- resistance spot
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Heat Treatment Of Sheet Steel (AREA)
Abstract
PURPOSE: To provide the titled cold rolled steel plate attaining necessary balance between strength and elongation as base metal by heat treating conditions in the manufacture of the plate by specifying the content of P and S as an inevitable impurity, the maximum content of C, Si and Mn in addition to P and S, and the Al content.
CONSTITUTION: The total amount of P and S as an inevitable impurity is specified to 2(P+2S)≤0.25%. The maximum content of C, Si and Mn in the plate in addition to P and S is regulated to a range represented by the equation, and the Al content is specified to 0.02W0.08%. The balance is made essentially of iron. Thus, a high-strength cold-rolled steel plate with superior resistance spot weldability is provided. This steel plate has superior performance at the weld zone in resistance spot welding even under conditions where the cooling speed of the weld zone is increased during the welding, and the electrode holding time is so long as to cause rupture in the nugget in a peel test when a conventional material is used.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9935880A JPS5726140A (en) | 1980-07-22 | 1980-07-22 | High-strength cold-rolled steel plate with superior resistance spot weldability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9935880A JPS5726140A (en) | 1980-07-22 | 1980-07-22 | High-strength cold-rolled steel plate with superior resistance spot weldability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5726140A true JPS5726140A (en) | 1982-02-12 |
Family
ID=14245359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9935880A Pending JPS5726140A (en) | 1980-07-22 | 1980-07-22 | High-strength cold-rolled steel plate with superior resistance spot weldability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5726140A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0443548U (en) * | 1990-03-16 | 1992-04-14 |
-
1980
- 1980-07-22 JP JP9935880A patent/JPS5726140A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0443548U (en) * | 1990-03-16 | 1992-04-14 |
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