JPS626618B2 - - Google Patents
Info
- Publication number
- JPS626618B2 JPS626618B2 JP8877282A JP8877282A JPS626618B2 JP S626618 B2 JPS626618 B2 JP S626618B2 JP 8877282 A JP8877282 A JP 8877282A JP 8877282 A JP8877282 A JP 8877282A JP S626618 B2 JPS626618 B2 JP S626618B2
- Authority
- JP
- Japan
- Prior art keywords
- toughness
- weld metal
- steel
- temperature
- 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.)
- Expired
Links
- 229910052751 metal Inorganic materials 0.000 claims description 32
- 239000002184 metal Substances 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 11
- 229910052760 oxygen Inorganic materials 0.000 description 11
- 239000001301 oxygen Substances 0.000 description 11
- 239000000203 mixture Substances 0.000 description 10
- 238000005452 bending Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 229910000859 α-Fe Inorganic materials 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 229910001568 polygonal ferrite Inorganic materials 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- 230000004907 flux Effects 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 229910052758 niobium Inorganic materials 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910001563 bainite Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Heat Treatment Of Steel (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8877282A JPS58207355A (ja) | 1982-05-27 | 1982-05-27 | 含Ｎｂ鋼溶接直管の曲管加工方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8877282A JPS58207355A (ja) | 1982-05-27 | 1982-05-27 | 含Ｎｂ鋼溶接直管の曲管加工方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58207355A JPS58207355A (ja) | 1983-12-02 |
| JPS626618B2 true JPS626618B2 (enrdf_load_stackoverflow) | 1987-02-12 |
Family
ID=13952138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8877282A Granted JPS58207355A (ja) | 1982-05-27 | 1982-05-27 | 含Ｎｂ鋼溶接直管の曲管加工方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58207355A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61127849A (ja) * | 1984-11-26 | 1986-06-16 | Kawasaki Steel Corp | 曲管加工用管用鋼 |
-
1982
- 1982-05-27 JP JP8877282A patent/JPS58207355A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58207355A (ja) | 1983-12-02 |
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