JPS552785A - Manufacture of high tensile steel excellent in delayed crackableness - Google Patents
Manufacture of high tensile steel excellent in delayed crackablenessInfo
- Publication number
- JPS552785A JPS552785A JP357479A JP357479A JPS552785A JP S552785 A JPS552785 A JP S552785A JP 357479 A JP357479 A JP 357479A JP 357479 A JP357479 A JP 357479A JP S552785 A JPS552785 A JP S552785A
- Authority
- JP
- Japan
- Prior art keywords
- crackableness
- delayed
- high tensile
- steel
- manufacture
- 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 the high tensile steel of tensile strength 100kg/mm2, showing an excellent delayed crackableness, by heat treating and tempering the steel containing a specified amount of C, Si, Mn, Ni, Cr, Mo, and Cu as the fundamental constituent, to form the martensitic structure.
CONSTITUTION: The alloy steel is constituted of 0.2W0.40% C, 0.20W1.50% Si, 0.50W2.00% Mn, 0.25W2.00% Ni, 0.50W2.00% Cr, 0.80W4.00% Mo, 0.15W 1.00% Cu, and the balance consisting of Fe and the inevitable impurities; this alloy is heated to above A3 transformation point, and then, is quenched for tempering treatment at a temperature under A1 transformation point; hereby, the high tensile steel excellent in the delayed crackableness is manufactured. By further containing 0.005W0.100% SolAl, and B ≤0.01%, in this alloy steel, the generation of the proeutectoid ferrite is restrained, the hardenability is increased, and the generation of the fine martensite is made easy. Moreover, by containing 0.01W0.20% V, 0.01W0.20% Nb, and 0.01W0.5% Ti, the effect on improvement of the strength can be obtained owing to the formation of fine grains or to the precipitation hardening.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP357479A JPS552785A (en) | 1979-01-16 | 1979-01-16 | Manufacture of high tensile steel excellent in delayed crackableness |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP357479A JPS552785A (en) | 1979-01-16 | 1979-01-16 | Manufacture of high tensile steel excellent in delayed crackableness |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2371573A Division JPS5423331B2 (en) | 1973-03-01 | 1973-03-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS552785A true JPS552785A (en) | 1980-01-10 |
JPS5531167B2 JPS5531167B2 (en) | 1980-08-16 |
Family
ID=11561214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP357479A Granted JPS552785A (en) | 1979-01-16 | 1979-01-16 | Manufacture of high tensile steel excellent in delayed crackableness |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS552785A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7754029B2 (en) * | 2005-07-22 | 2010-07-13 | Nippon Steel Corporation | Steel with excellent delayed fracture resistance and tensile strength of 1801 MPa class or more, and its shaped article |
WO2016052093A1 (en) * | 2014-09-30 | 2016-04-07 | 株式会社神戸製鋼所 | Steel for bolts, and bolt |
CN109642294A (en) * | 2016-09-28 | 2019-04-16 | 杰富意钢铁株式会社 | Steel plate and its manufacturing method |
CN115094333A (en) * | 2022-07-19 | 2022-09-23 | 坎德拉(深圳)新能源科技有限公司 | High-strength high-hardenability alloy steel and preparation method and application thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62158547U (en) * | 1986-03-28 | 1987-10-08 |
-
1979
- 1979-01-16 JP JP357479A patent/JPS552785A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7754029B2 (en) * | 2005-07-22 | 2010-07-13 | Nippon Steel Corporation | Steel with excellent delayed fracture resistance and tensile strength of 1801 MPa class or more, and its shaped article |
WO2016052093A1 (en) * | 2014-09-30 | 2016-04-07 | 株式会社神戸製鋼所 | Steel for bolts, and bolt |
JP2016069705A (en) * | 2014-09-30 | 2016-05-09 | 株式会社神戸製鋼所 | Steel for bolt and bolt |
CN109642294A (en) * | 2016-09-28 | 2019-04-16 | 杰富意钢铁株式会社 | Steel plate and its manufacturing method |
US10982297B2 (en) | 2016-09-28 | 2021-04-20 | Jfe Steel Corporation | Steel sheet and method for producing the same |
CN115094333A (en) * | 2022-07-19 | 2022-09-23 | 坎德拉(深圳)新能源科技有限公司 | High-strength high-hardenability alloy steel and preparation method and application thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS5531167B2 (en) | 1980-08-16 |
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