JPS5763664A - Steel products with superior resistance to sr embrittlement - Google Patents
Steel products with superior resistance to sr embrittlementInfo
- Publication number
- JPS5763664A JPS5763664A JP12683581A JP12683581A JPS5763664A JP S5763664 A JPS5763664 A JP S5763664A JP 12683581 A JP12683581 A JP 12683581A JP 12683581 A JP12683581 A JP 12683581A JP S5763664 A JPS5763664 A JP S5763664A
- Authority
- JP
- Japan
- Prior art keywords
- steel products
- embrittlement
- ferrite
- superior resistance
- platelike
- 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
Abstract
PURPOSE: To obtan platelike steel products with enhanced resistance to SR embrittlement by reducing the C content, specifying the Ni, Si and Mn contents, and further adding one or more among Mo, Cu and Cr so as to specify the vol. precentage of ferrite.
CONSTITUTION: A steel consisting of ≤0.08% C, <3% Ni, ≤0.5% Si, ≤2% Mn, one or more among ≤2% Cu, ≤3% Cr and ≤2% Mo, and the balance Fe with impurities is hot-rolled to platelike steel products each having ≥30mm thickness and contg. ≥30vol% ferrite and <10% pearlite. By this composition, high resistance to embrittlement due to stress relief annealing (SR) is provided, and the mechanical characteristics such as strength and notch toughness can be maintained properly after SR. The steel products are applied to a pressure vessel, etc.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12683581A JPS5763664A (en) | 1981-08-14 | 1981-08-14 | Steel products with superior resistance to sr embrittlement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12683581A JPS5763664A (en) | 1981-08-14 | 1981-08-14 | Steel products with superior resistance to sr embrittlement |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52025900A Division JPS6035423B2 (en) | 1977-03-11 | 1977-03-11 | Steel material with excellent SR embrittlement resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5763664A true JPS5763664A (en) | 1982-04-17 |
Family
ID=14945075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12683581A Pending JPS5763664A (en) | 1981-08-14 | 1981-08-14 | Steel products with superior resistance to sr embrittlement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5763664A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5395120A (en) * | 1977-01-31 | 1978-08-19 | Sumitomo Metal Ind Ltd | Tough steel having excellent resistance for becoming brittle owing to sr |
-
1981
- 1981-08-14 JP JP12683581A patent/JPS5763664A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5395120A (en) * | 1977-01-31 | 1978-08-19 | Sumitomo Metal Ind Ltd | Tough steel having excellent resistance for becoming brittle owing to sr |
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