Classifications

• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C38/00—Ferrous alloys, e.g. steel alloys
  • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
  • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C38/00—Ferrous alloys, e.g. steel alloys
  • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C38/00—Ferrous alloys, e.g. steel alloys
  • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C38/00—Ferrous alloys, e.g. steel alloys
  • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C38/00—Ferrous alloys, e.g. steel alloys
  • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C38/00—Ferrous alloys, e.g. steel alloys
  • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
  • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
  • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum

Definitions

• the book is related to the oil well tesite system "" Ness S ee Seam ess be o Coy T a oods), and surrendered.
• d S en h It relates to an oil well seam ess s ee be o T in which S has an altitude above g5ks 655 a) and a low temperature o ee a eo h ess and its manufacturing method.
• the purpose of this project is to solve the problem of the technique, and to propose an oil well that has both high altitude on yielding S g5k (655 to 758 a) and excellent low temperature, and its specified manufacturing method.
• the case where the VS of the low temperature test shown here is below 40 ° C. Indication of light
• the oil well tesite system is further composed of mas s, C 20, Mo 20 A state.
• the oil well tensite comprising s, under 20 and under Mo 20 and further containing two kinds Of the system test tube.
• Tubes can be manufactured easily and stably, producing industrial results. Good for carrying out Ming
• It may be composed of the balance Fe and unavoidable materials, including 0 05
• C is an important element related to the strength of the tesite stainless steel, and in order to secure the desired degree, it is desirable to have it over 0.003, but the content of C exceeds 0.020.
• the edible nature tends to decrease. For this reason, I limited it to C 0 020 below. would you like to have strength and sex?
• the range is from 0.003 to 0.55.
• Gas ss. os OC ack g is an element that contributes effectively. If we have 0 C, we can secure the necessary food for the oil well, so we decided to limit it to 0 C. On the other hand, it is easy to synthesize freight of over 4 It is economically disadvantageous because it requires the addition of a large amount of expensive austenite to stop the tesite phase safety or hot working. For this reason, it was limited to 0 4 range. Preferably, it is 0 5 5 from the standpoint of maintaining a more stable structure hot working.
• N an element that has a protective effect and enhances the gas erosion.
• the content of 0 or more is desired, but the content exceeding 3 only invites a manufacturing strike. For this reason, it was limited to the area below N 3.
• the preference is 5 to 2.5.
• No is a bright element.
• b an element that forms carbides and increases the strength of steel through conversion by b-chemicals. In addition, it has an important role in preventing the appearance of mold molds and improving the properties.
• b is 0 03 and more preferably 0.03. It is necessary to have more than.
• ⁇ 06 is preferred. On the other hand, if it exceeds 0 ⁇ 2, the sex will deteriorate. For this reason, No. was limited to the range of 03 to 0-2. The preferred range is 0 03 to 0.5. More preferred is 0.06 to 0 5.
• ingredients listed are the basic components. In addition, in addition to these basic components, the following components are also included: • 0 below, No. 0 ⁇ ⁇ 2 • P 0020 below, S 000 below, 0 0 below The basic composition is preferred.
• P is an element that enhances the gas erosion of gas, and it is desirable to reduce this apparently, but it invites an extreme production cost. P was limited to less than 2020 as a range that could be implemented at a relatively low cost industrially and that would not make gas-eating habitable. The preference is below 0 0 5.
• S is an element that makes interworking significant in the ip manufacturing process, and it is desirable that it be as small as possible. However, it is possible to manufacture ip at a level that is reduced to below 0.00. Et al., Limited to below S 0 0 0. The preference is below 0 00 3.
• Mo slip is also an element that has the effect of improving the food quality, and can be selected as necessary.
• u is preferably limited to 2 ⁇ 0 or less. More preferred are 0, 2 and 0.
• o is an element that has an effect of increasing to against by, and in order to obtain such an effect, it is desirable to have it over 0.2.
• Mo 2 ⁇ 0. The preferred range is 0 2 to 0.
• V, T, and N are also elements that increase the strength, and can be selected as necessary or have two or more.
• V 0 02, T 0 02, and B 0 00 5 In order to obtain this effect, it is desirable to have V 0 02, T 0 02, and B 0 00 5. On the other hand, if it exceeds V 0 20 T 0 0 0 005, the characteristics will deteriorate. For this reason, if it has, it is preferable to limit it to below V 0 20 and below T 0 0 B 005. It is more preferable that 002 to 0 0 and T 0 02 to 0 ⁇ 05 B 0 00 5 to 0 ⁇ 0040. Other than the ingredients listed, Fe and unavoidable. Inevitable is 0 0 0. Finally, I will explain with the knitting of Akira's tube.
• the tube has an organization that consists mainly of Ming Tesite (. E ed ma e s e ph.) In addition, it may have 5 detufflites (de a e e and austenite se e) as weaves outside the rue site (e e edma e se Phase). In addition, it is preferable to set the data light to 2 below from the viewpoint of machining. For austenite, it is preferable to lower it by 2 from the viewpoint of qualitative strength. As a result, the tube has a desired (vT of the test above 95k is 40C, and also has sufficient food quality. No. amount is 0 ⁇ 2020a in No. calculation. No. amount is 0. At 020, it is not possible to suppress the emergence of serotypes that adversely affect the sex, and the sex is degraded .. In addition, the preferred number is 0 ⁇ 025 mass.
• the No. amount was the No. contained in the sample by obtaining the No. amount included in the electrolysis by electrolysis using the electrolysis method (e. O y c ... me hod).
• No is mainly composed of b and c. No., the diameter of the product is 35 nm. I will explain it by the way of the Ming's tube. Starting from a test tube having the composition described above, q. . h g). Apply cc). Furthermore, if necessary, corrective treatment may be applied to correct the goodness of the state.
• ann It is preferable to use the process of a p m me hod or the nest type (ann. m n a d me m hod) to make the pipe of the desired method and the starting material.
• the push expression p According to s me hod (h. You may manufacture the tube with x dn. It is also preferable to cool it down to chilled, air cooled (cooled to room temperature oom e p.).
• the temperature is less than 00C at air cooling or above. Since the starting property in the morning is high, it can be cooled to 00 or less at the air cooling degree to the following, and tense can be obtained. Also, the retention in degrees should be above 0mn. m. g. . . s h. n) from the point of view.
• the temperature is increased to 550C, c, and the following e pe ng e e a e is heated and held at a preferable temperature of 30. After that, it is preferably cooled to a room temperature and preferably cooled to room temperature. As a result, it has both high temperature on g5ks and low temperature characteristics with vT s below 40C.
• composition shown in the figure was degassed and produced in a village with a continuous bit size of 2007. These materials are heated and
• test () was taken and () Z 2 and 3 were subjected to firing, firing, or further corrective treatment.
• V ditches (0 m) were collected from test materials that had undergone further correct treatment, and ⁇ -pi test was performed to determine vT s and sex was evaluated. .
• Testhetic type tube Testhetic type tube.
• the strength is insufficient (95 s) or the low-temperature property is reduced (vT s is 40C).

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Mechanical Engineering (AREA)
• Metallurgy (AREA)
• Organic Chemistry (AREA)
• Heat Treatment Of Articles (AREA)
• Heat Treatment Of Steel (AREA)

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• 2008
  • 2008-12-24 EP EP08876878.3A patent/EP2322679B1/en active Active
  • 2008-12-24 WO PCT/JP2008/073918 patent/WO2010026672A1/ja active Application Filing
  • 2008-12-24 RU RU2011112690/02A patent/RU2468112C1/ru active
  • 2008-12-24 CN CN200880131002.7A patent/CN102144041B/zh not_active Expired - Fee Related
  • 2008-12-24 US US13/059,504 patent/US20110132501A1/en not_active Abandoned

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