JPS569326A - Manufacture of case hardening steel - Google Patents
Manufacture of case hardening steelInfo
- Publication number
- JPS569326A JPS569326A JP8351479A JP8351479A JPS569326A JP S569326 A JPS569326 A JP S569326A JP 8351479 A JP8351479 A JP 8351479A JP 8351479 A JP8351479 A JP 8351479A JP S569326 A JPS569326 A JP S569326A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- case hardening
- manufacture
- hot
- quality characteristics
- 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.)
- Granted
Links
Abstract
PURPOSE: To manufacture a case hardening low-alloy steel which is less in dispersion of quality characteristics after being rolled and also free of the formation of anomalous texture due to the coarsening of crystal grains after the subsequent surface hardening treatment by hot-rolling a steel containing specific alloying components under a definite condition.
CONSTITUTION: A case hardening steel contains 0.05W0.30% C, 0.10W0.40% Si, and 0.30W2.0% Mn, together with at least one of 0.007W0.025% N, 0.015W0.08% Al, 0.01W0.20% Ti, 0.01W0.20% V, and 0.005W0.20% Nb; or together with, besides the components mentioned above, 0.80W1.50% Cr, 0.10W0.50% Mo, 0.20W1.50% Cr and 1.5W4.0% Ni, or 0.30W0.70% Cr, 0.10W0.30% Mo, and 0.30W2.0% Ni. The steel is hot-rolled under the conditions of a final finish processing rate of >15% and a final finish temperature of <950°C and then cooled at a cooling rate of 10°C/sec or less down to 500°C. Thus, a case hardening steel adequate for mechanical structure with uniform quality characteristics can be manufactured.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54083514A JPS5946288B2 (en) | 1979-07-03 | 1979-07-03 | Manufacturing method of case hardened steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54083514A JPS5946288B2 (en) | 1979-07-03 | 1979-07-03 | Manufacturing method of case hardened steel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS569326A true JPS569326A (en) | 1981-01-30 |
JPS5946288B2 JPS5946288B2 (en) | 1984-11-12 |
Family
ID=13804585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54083514A Expired JPS5946288B2 (en) | 1979-07-03 | 1979-07-03 | Manufacturing method of case hardened steel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5946288B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5852424A (en) * | 1981-09-22 | 1983-03-28 | Nippon Steel Corp | Manufacture of steel for carburizing at high temperature |
JPS61124520A (en) * | 1984-11-21 | 1986-06-12 | Kawasaki Steel Corp | Production of regulated coarse-grained carburizing steel |
JPS61261427A (en) * | 1985-05-13 | 1986-11-19 | Kobe Steel Ltd | Production of steel having superior cold workability and preventing coarsening of grain during carburization heating |
US4634573A (en) * | 1981-09-10 | 1987-01-06 | Daido Tokushuko Kabushiki Kaisha | Steel for cold forging and method of making |
JPS63157816A (en) * | 1986-12-22 | 1988-06-30 | Kawasaki Steel Corp | Manufacture of carburizing steel material |
US4773947A (en) * | 1983-08-02 | 1988-09-27 | Nissan Motor Co., Ltd. | Manufacturing process for high temperature carburized case harden steel |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5477217A (en) * | 1977-12-01 | 1979-06-20 | Sumitomo Metal Ind Ltd | Production of rod steel without thermal refining |
-
1979
- 1979-07-03 JP JP54083514A patent/JPS5946288B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5477217A (en) * | 1977-12-01 | 1979-06-20 | Sumitomo Metal Ind Ltd | Production of rod steel without thermal refining |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4634573A (en) * | 1981-09-10 | 1987-01-06 | Daido Tokushuko Kabushiki Kaisha | Steel for cold forging and method of making |
JPS5852424A (en) * | 1981-09-22 | 1983-03-28 | Nippon Steel Corp | Manufacture of steel for carburizing at high temperature |
US4773947A (en) * | 1983-08-02 | 1988-09-27 | Nissan Motor Co., Ltd. | Manufacturing process for high temperature carburized case harden steel |
JPS61124520A (en) * | 1984-11-21 | 1986-06-12 | Kawasaki Steel Corp | Production of regulated coarse-grained carburizing steel |
JPS61261427A (en) * | 1985-05-13 | 1986-11-19 | Kobe Steel Ltd | Production of steel having superior cold workability and preventing coarsening of grain during carburization heating |
JPS63157816A (en) * | 1986-12-22 | 1988-06-30 | Kawasaki Steel Corp | Manufacture of carburizing steel material |
JPH0572442B2 (en) * | 1986-12-22 | 1993-10-12 | Kawasaki Steel Co |
Also Published As
Publication number | Publication date |
---|---|
JPS5946288B2 (en) | 1984-11-12 |
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