JPS6428345A - Alloy steel for very low temperature use - Google Patents
Alloy steel for very low temperature useInfo
- Publication number
- JPS6428345A JPS6428345A JP18306287A JP18306287A JPS6428345A JP S6428345 A JPS6428345 A JP S6428345A JP 18306287 A JP18306287 A JP 18306287A JP 18306287 A JP18306287 A JP 18306287A JP S6428345 A JPS6428345 A JP S6428345A
- Authority
- JP
- Japan
- Prior art keywords
- alloy steel
- deterioration
- steel
- heat treatment
- alloy
- 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
Landscapes
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE:To manufacture a steel free from deterioration in toughness due to temper brittleness while obviating the necessity of particular heat treatment, by providing a specific composition in which Si and Mn contents are reduced and deterioration in hardenability due to the above reduction or increase in thickness is compensated by the addition of other alloy components. CONSTITUTION:This alloy steel has a composition consisting of, by weight, 0.02-0.15% C, <=0.10% Si, <0.10% Mn, 7.0-11.0% Ni, 0.20-2.0% Cr, 0.1-0.5% Mo, 0.01-0.035% Al, and the balance Fe and containing, if necessary, 0.1-0.5% Cu or 0.01-0.06% V and is composed of martensitic and lower bainite structures. This alloy steel is capable of reducing tempered brittleness sensitivity even if cooling at the time of tempering or heat treatment after welding is applied by means of slow cooling, and accordingly, this alloy steel can maintain high toughness even when applied to a thick-walled part or a large-sized structural member. Further, this alloy steel can be manufactured without requiring particular manufacturing stages, such as direct hardening after hot rolling.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18306287A JPS6428345A (en) | 1987-07-22 | 1987-07-22 | Alloy steel for very low temperature use |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18306287A JPS6428345A (en) | 1987-07-22 | 1987-07-22 | Alloy steel for very low temperature use |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6428345A true JPS6428345A (en) | 1989-01-30 |
Family
ID=16129077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18306287A Pending JPS6428345A (en) | 1987-07-22 | 1987-07-22 | Alloy steel for very low temperature use |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6428345A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5709807A (en) * | 1991-09-05 | 1998-01-20 | Nkk Corporation | Flow rate adjusting for rotary nozzle type molten metal pouring unit |
GB2569292B (en) * | 2017-12-08 | 2020-07-29 | Ford Global Tech Llc | Vehicle storage compartment with selective access from the exterior and the interior of the vehicle |
GB2559191B (en) * | 2017-01-31 | 2021-07-28 | Campers Scotland Ltd | Vehicle system |
-
1987
- 1987-07-22 JP JP18306287A patent/JPS6428345A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5709807A (en) * | 1991-09-05 | 1998-01-20 | Nkk Corporation | Flow rate adjusting for rotary nozzle type molten metal pouring unit |
GB2559191B (en) * | 2017-01-31 | 2021-07-28 | Campers Scotland Ltd | Vehicle system |
GB2569292B (en) * | 2017-12-08 | 2020-07-29 | Ford Global Tech Llc | Vehicle storage compartment with selective access from the exterior and the interior of the vehicle |
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