JPS5514847A - High-nitrogen carbon steel for machine structural use - Google Patents
High-nitrogen carbon steel for machine structural useInfo
- Publication number
- JPS5514847A JPS5514847A JP8677878A JP8677878A JPS5514847A JP S5514847 A JPS5514847 A JP S5514847A JP 8677878 A JP8677878 A JP 8677878A JP 8677878 A JP8677878 A JP 8677878A JP S5514847 A JPS5514847 A JP S5514847A
- Authority
- JP
- Japan
- Prior art keywords
- carbon steel
- sol
- machine structural
- structural use
- nitrogen carbon
- 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 a high-nitrogen carbon steel which has uniform fine austenite crystal grains even after one or more annealings and cold rollings are repeated.
CONSTITUTION: This carbon steel is made by addn. of, by weight, 0.010W0.100% Al as sol. Al, 0.015W0.030% N as sol. N to a carbon steel for machine structural use, i.e., N must be added to an amount larger than the sol. N inevitably contained in the steel usually made by melting and ingot casting since the latter is 0.003W 0.010%. Even in annealed state, or after one or more annealings and cold rollings are repeated the carbon steel shows fine austenite crystal grains by uniforming grain size at the usual austenite temp., and its dependance upon temp. is small.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8677878A JPS5514847A (en) | 1978-07-18 | 1978-07-18 | High-nitrogen carbon steel for machine structural use |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8677878A JPS5514847A (en) | 1978-07-18 | 1978-07-18 | High-nitrogen carbon steel for machine structural use |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5514847A true JPS5514847A (en) | 1980-02-01 |
Family
ID=13896203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8677878A Pending JPS5514847A (en) | 1978-07-18 | 1978-07-18 | High-nitrogen carbon steel for machine structural use |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5514847A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6368251A (en) * | 1987-09-08 | 1988-03-28 | Nippon Kokan Kk <Nkk> | Continuous casting method for cast slab having sound surface |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5344418A (en) * | 1976-09-20 | 1978-04-21 | Garphytte Bruk Ab | Use of low alloy steel in manufacturing valves* springs and wires |
-
1978
- 1978-07-18 JP JP8677878A patent/JPS5514847A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5344418A (en) * | 1976-09-20 | 1978-04-21 | Garphytte Bruk Ab | Use of low alloy steel in manufacturing valves* springs and wires |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6368251A (en) * | 1987-09-08 | 1988-03-28 | Nippon Kokan Kk <Nkk> | Continuous casting method for cast slab having sound surface |
JPS6361107B2 (en) * | 1987-09-08 | 1988-11-28 |
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