JPS57161033A - Production of steel material for line pipe of superior hydrogen induced cracking resistance - Google Patents
Production of steel material for line pipe of superior hydrogen induced cracking resistanceInfo
- Publication number
- JPS57161033A JPS57161033A JP13575581A JP13575581A JPS57161033A JP S57161033 A JPS57161033 A JP S57161033A JP 13575581 A JP13575581 A JP 13575581A JP 13575581 A JP13575581 A JP 13575581A JP S57161033 A JPS57161033 A JP S57161033A
- Authority
- JP
- Japan
- Prior art keywords
- steel material
- induced cracking
- cracking resistance
- production
- line pipe
- 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
Landscapes
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE: To obtain a steel material for line pipes of superior hydrogen-induced cracking resistance by blooming a large-sized steel ingot of specific compsn. and subjecting the same to a soaking treatment by selecting the temp. and time within a limited range then hot-rolling the ingot.
CONSTITUTION: A large-sized steel ingot of ≥400mm thickness consisting of 0.05W 0.20% C, <0.5% Si, 0.9W1.60% Mn, <0.03% P, 0.002W0.15% S, <0.1% Al, and the balance iron and impurities, and further, if necessary, contg. Ca, V, Nb, Mo, Cu, Cr, Ni, B, Ti is bloomed. This is soaked at the temp. and time within the range of the shaded part enclosed by the points A, B, C, D, E, F, G, H of the figure showing the region of soaking conditions. Thence, this slab is hot-rolled. If pipes are produced by using such steel material, the hydrogen-induced cracking of the line pipes is prevented effectively.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13575581A JPS6047885B2 (en) | 1981-08-29 | 1981-08-29 | Manufacturing method for line pipe steel with excellent resistance to hydrogen-induced cracking |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13575581A JPS6047885B2 (en) | 1981-08-29 | 1981-08-29 | Manufacturing method for line pipe steel with excellent resistance to hydrogen-induced cracking |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP224574A Division JPS5549129B2 (en) | 1973-12-28 | 1973-12-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57161033A true JPS57161033A (en) | 1982-10-04 |
JPS6047885B2 JPS6047885B2 (en) | 1985-10-24 |
Family
ID=15159100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13575581A Expired JPS6047885B2 (en) | 1981-08-29 | 1981-08-29 | Manufacturing method for line pipe steel with excellent resistance to hydrogen-induced cracking |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6047885B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61221326A (en) * | 1985-03-27 | 1986-10-01 | Nippon Kokan Kk <Nkk> | Production of steel material having excellent resistance to sulfide corrosion cracking |
US7998262B2 (en) | 2008-01-10 | 2011-08-16 | Toshiba Tec Kabushiki Kaisha | Merchandise sales processing apparatus |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6361583U (en) * | 1986-10-08 | 1988-04-23 |
-
1981
- 1981-08-29 JP JP13575581A patent/JPS6047885B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61221326A (en) * | 1985-03-27 | 1986-10-01 | Nippon Kokan Kk <Nkk> | Production of steel material having excellent resistance to sulfide corrosion cracking |
US7998262B2 (en) | 2008-01-10 | 2011-08-16 | Toshiba Tec Kabushiki Kaisha | Merchandise sales processing apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS6047885B2 (en) | 1985-10-24 |
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