JPS5726145A - Ti-b added material for pc steel wire or steel bar inhibiting occurrence of surface flaw - Google Patents
Ti-b added material for pc steel wire or steel bar inhibiting occurrence of surface flawInfo
- Publication number
- JPS5726145A JPS5726145A JP10124180A JP10124180A JPS5726145A JP S5726145 A JPS5726145 A JP S5726145A JP 10124180 A JP10124180 A JP 10124180A JP 10124180 A JP10124180 A JP 10124180A JP S5726145 A JPS5726145 A JP S5726145A
- Authority
- JP
- Japan
- Prior art keywords
- steel wire
- steel bar
- steel
- added material
- surface flaw
- 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 Strip Materials And Filament Materials (AREA)
Abstract
PURPOSE: To remarkably inhibit the occurrence of surface flaws on a Ti-B added material for a PC steel wire or a steel bar and to enhance the yield by adding Ti while restricting the N equiv. multiple of Ti.
CONSTITUTION: This material for a PC steel wire or a steel bar contains 0.27W 0.34% C, 0.15W0.60% Si, 0.70W0.90%Mn, ≤0.030% P, ≤0.030% S, 0.010W 0.045% sol. Al, 0.010W0.030% Ti and 0.0010W0.0030% B. Ti is added so as to allow the N equiv. multiple Z of Ti to satisfy the equation (where 14 is the atomic weight of N and 48 is the atomic weight of Ti). When the N equiv. multiple Z of Ti is <1.4, the flaw examination marks are in reciprocal proportion to the multiple Z as shown by the figure. When the multiple Z is ≥1.4, the flaw examination marks are stabilized at a low level.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10124180A JPS5726145A (en) | 1980-07-25 | 1980-07-25 | Ti-b added material for pc steel wire or steel bar inhibiting occurrence of surface flaw |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10124180A JPS5726145A (en) | 1980-07-25 | 1980-07-25 | Ti-b added material for pc steel wire or steel bar inhibiting occurrence of surface flaw |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5726145A true JPS5726145A (en) | 1982-02-12 |
Family
ID=14295401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10124180A Pending JPS5726145A (en) | 1980-07-25 | 1980-07-25 | Ti-b added material for pc steel wire or steel bar inhibiting occurrence of surface flaw |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5726145A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04363458A (en) * | 1991-06-11 | 1992-12-16 | Hokkaido Nouzai Kogyo Kk | Heat insulating tile, external heat insulating wall of building and construction method thereof |
-
1980
- 1980-07-25 JP JP10124180A patent/JPS5726145A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04363458A (en) * | 1991-06-11 | 1992-12-16 | Hokkaido Nouzai Kogyo Kk | Heat insulating tile, external heat insulating wall of building and construction method thereof |
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