JPS5729530A - Preparation of austenite-containing alloy pipe having excellent high temperature steam oxidation resistance and high temperature long duration strength - Google Patents
Preparation of austenite-containing alloy pipe having excellent high temperature steam oxidation resistance and high temperature long duration strengthInfo
- Publication number
- JPS5729530A JPS5729530A JP10239280A JP10239280A JPS5729530A JP S5729530 A JPS5729530 A JP S5729530A JP 10239280 A JP10239280 A JP 10239280A JP 10239280 A JP10239280 A JP 10239280A JP S5729530 A JPS5729530 A JP S5729530A
- Authority
- JP
- Japan
- Prior art keywords
- high temperature
- pipe
- austenite
- less
- oxidation resistance
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
PURPOSE:To improve the high temperature steam oxidation resistance and high temperature long duration strength, by carrying out the nitriding treatment at a low temperature of an austenite-containing alloy pipe made of Cr-Ni steel having a specific composition and further by carrying out the solution treatment of the alloy pipe. CONSTITUTION:Pipes made of austenite-containing alloy steel containing 15-26% Cr, 8-35% Ni, 1.0% or less Si, 2.0% or less Mn and 0.2% or less Ti and, if necessary, further at least one element of 3% or less Mo and 0.6% or less Al are mitrided at a relatively low temperature of 500-1.000 deg.C. Subsequently, the solution treatment of the pipe is carried out at a temperature of 1,100 deg.C or higher to form a fine grain layer 50-500mu thick having a grain size mumber of 7 or finer on the inner surface of the pipe and to provide the pipe with a structure comprising the residual part having a grain size of 3-7. As the nitriding treatment is carried out at a low temperature, the evaporation of Cr in the alloy steel and the formation of an oxide film on the inner surface of the pipe are prevented so that the high temperature steam oxidation resistance and the high temperature long duration strength are improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10239280A JPS5729530A (en) | 1980-07-28 | 1980-07-28 | Preparation of austenite-containing alloy pipe having excellent high temperature steam oxidation resistance and high temperature long duration strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10239280A JPS5729530A (en) | 1980-07-28 | 1980-07-28 | Preparation of austenite-containing alloy pipe having excellent high temperature steam oxidation resistance and high temperature long duration strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5729530A true JPS5729530A (en) | 1982-02-17 |
Family
ID=14326167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10239280A Pending JPS5729530A (en) | 1980-07-28 | 1980-07-28 | Preparation of austenite-containing alloy pipe having excellent high temperature steam oxidation resistance and high temperature long duration strength |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5729530A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62278230A (en) * | 1986-05-26 | 1987-12-03 | Nippon Steel Corp | Manufacturing method of austenitic stainless steel ERW steel pipe |
| US7014720B2 (en) | 2002-03-08 | 2006-03-21 | Sumitomo Metal Industries, Ltd. | Austenitic stainless steel tube excellent in steam oxidation resistance and a manufacturing method thereof |
| US20160289812A1 (en) * | 2010-02-04 | 2016-10-06 | Oda Industries Co., Ltd. | Process for manufacturing high-nitrogen stainless steel pipe with high strength, high ductility, and excellent corrosion and heat resistance |
-
1980
- 1980-07-28 JP JP10239280A patent/JPS5729530A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62278230A (en) * | 1986-05-26 | 1987-12-03 | Nippon Steel Corp | Manufacturing method of austenitic stainless steel ERW steel pipe |
| JPH0246652B2 (en) * | 1986-05-26 | 1990-10-16 | Nippon Steel Corp | |
| US7014720B2 (en) | 2002-03-08 | 2006-03-21 | Sumitomo Metal Industries, Ltd. | Austenitic stainless steel tube excellent in steam oxidation resistance and a manufacturing method thereof |
| US20160289812A1 (en) * | 2010-02-04 | 2016-10-06 | Oda Industries Co., Ltd. | Process for manufacturing high-nitrogen stainless steel pipe with high strength, high ductility, and excellent corrosion and heat resistance |
| US11015238B2 (en) * | 2010-02-04 | 2021-05-25 | Harumatu Miura | Process for manufacturing high-nitrogen stainless steel pipe with high strength, high ductility, and excellent corrosion and heat resistance |
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