JPS57131349A - Low alloy cr-mo steel for pressure vessel - Google Patents
Low alloy cr-mo steel for pressure vesselInfo
- Publication number
- JPS57131349A JPS57131349A JP1534281A JP1534281A JPS57131349A JP S57131349 A JPS57131349 A JP S57131349A JP 1534281 A JP1534281 A JP 1534281A JP 1534281 A JP1534281 A JP 1534281A JP S57131349 A JPS57131349 A JP S57131349A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- pressure vessel
- low alloy
- toughness
- vessel
- 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
- Pressure Vessels And Lids Thereof (AREA)
Abstract
PURPOSE: To enhance the strength of a low alloy Cr-Mo steel for a pressure vessel and the toughness as the vessel at high temp. by adding specified elements to the steel.
CONSTITUTION: A low alloy Cr-Mo steel having a composition prepared by adding 0.005W0.20% Ti, 0.0005W0.02% B and 0.002W0.2% of 1 or ≥2 kinds of rare earth elements of atomic no. 57W71 to a basic composition consisting of <0.30% C, <0.60% Si, 0.20W1.50% Mn, 1.00W3.50% Cr, 0.40W1.50% Mo, <0.30% Cu, 0.10W0.60% Ni and the balance Fe is used as a material for a reactor for petroleum refining, various pressure vessels for chemical industry, etc. To the basic composition may be added 0.01W0.5% at least one of Nb, Ta and V and/or 0.0005W0.02% Ca. This steel has superior strength, and the toughness of a pressure vessel of this steel does not deteriorate even if used as a high temp. pressure vessel in the embrittlement temp. zone for a long time.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1534281A JPS6020460B2 (en) | 1981-02-04 | 1981-02-04 | Cr-Mo low alloy steel for pressure vessels |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1534281A JPS6020460B2 (en) | 1981-02-04 | 1981-02-04 | Cr-Mo low alloy steel for pressure vessels |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57131349A true JPS57131349A (en) | 1982-08-14 |
JPS6020460B2 JPS6020460B2 (en) | 1985-05-22 |
Family
ID=11886111
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1534281A Expired JPS6020460B2 (en) | 1981-02-04 | 1981-02-04 | Cr-Mo low alloy steel for pressure vessels |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6020460B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6017056A (en) * | 1983-07-06 | 1985-01-28 | Nippon Kokan Kk <Nkk> | Cr-mo steel with superior toughness |
US5211909A (en) * | 1991-02-22 | 1993-05-18 | Sumitomo Metal Industries, Ltd. | Low-alloy heat-resistant steel having improved creep strength and toughness |
EP0560375A2 (en) * | 1992-03-12 | 1993-09-15 | Sumitomo Chemical Company, Limited | Low-chromium ferritic heat-resistant steel with improved toughness and creep strength |
US5746843A (en) * | 1996-02-10 | 1998-05-05 | Sumitomo Metal Industries, Ltd. | Low Mn-low Cr ferritic heat resistant steel excellent in strength at elevated temperatures |
US6406564B1 (en) | 1998-12-14 | 2002-06-18 | Nippon Steel Corporation | Electric welded boiler steel pipe |
-
1981
- 1981-02-04 JP JP1534281A patent/JPS6020460B2/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6017056A (en) * | 1983-07-06 | 1985-01-28 | Nippon Kokan Kk <Nkk> | Cr-mo steel with superior toughness |
US5211909A (en) * | 1991-02-22 | 1993-05-18 | Sumitomo Metal Industries, Ltd. | Low-alloy heat-resistant steel having improved creep strength and toughness |
EP0560375A2 (en) * | 1992-03-12 | 1993-09-15 | Sumitomo Chemical Company, Limited | Low-chromium ferritic heat-resistant steel with improved toughness and creep strength |
US5407635A (en) * | 1992-03-12 | 1995-04-18 | Sumitomo Metal Industries, Ltd. | Low-chromium ferritic heat-resistant steel with improved toughness and creep strength |
US5746843A (en) * | 1996-02-10 | 1998-05-05 | Sumitomo Metal Industries, Ltd. | Low Mn-low Cr ferritic heat resistant steel excellent in strength at elevated temperatures |
US6406564B1 (en) | 1998-12-14 | 2002-06-18 | Nippon Steel Corporation | Electric welded boiler steel pipe |
DE19982874B4 (en) * | 1998-12-14 | 2005-11-03 | Nippon Steel Corp. | Electrically welded boiler structural steel tube |
Also Published As
Publication number | Publication date |
---|---|
JPS6020460B2 (en) | 1985-05-22 |
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