US3622306A - Corrosion resisting low alloy steel - Google Patents

Corrosion resisting low alloy steel Download PDF

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Publication number
US3622306A
US3622306A US814276A US3622306DA US3622306A US 3622306 A US3622306 A US 3622306A US 814276 A US814276 A US 814276A US 3622306D A US3622306D A US 3622306DA US 3622306 A US3622306 A US 3622306A
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US
United States
Prior art keywords
steel
corrosion
resistability
low alloy
alloy steel
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 - Lifetime
Application number
US814276A
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English (en)
Inventor
Masayuki Tanimura
Elhachiro Sunami
Toshio Nakazawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Application granted granted Critical
Publication of US3622306A publication Critical patent/US3622306A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
    • 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
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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

Definitions

  • steel A, B, and C The features of the present invention are found in stand for the present invention and steel D, E, and F are some Cu-Cr-Al system composition of low alloysteel, which is i ofofdiltafy Sleels- TABLE 1 C Si Mn P S Cu Cr Al Y.P T.S El.
  • Table I shows having corrosion resistability, especially stress-corrosion these l cracking resistability under a kind of environment containing H 8 gas and the like.
  • Table ll Another object of the present invention is to provide the V v Test Steel Corrosion embrittlement steel having a low cost and being able to make the corrosion m ing/cm, embrittlement loss reduce by about half in comparison with ordinary high-strength steel.
  • a further object of the present invention is to provide the The pmcm Q steel having higher strength in company with excellent corroinvcmhm and C u sion resistability without special strengthening elements, e.g. D
  • the FIGURE is a graph Showing stress conosion cracking According to the above table ll, it is clearly understood that resistability of the present steel in comparison with ordinary the said corrosion embrittlement loss of this invention steels corrosion resisting steels. reduces by half in comparison with the comparative steels.
  • the specified chemical And then, stress-corrosion cracking test is carried out on the composition, by weight percent, is as follows: above steels. These results are shown in the accompanying FIGURE. Referring now to the FIGURE, the strength of the 0 04 w 0 W7 C invention steel, after the above test, has been still kept at the 6,; high degree after 200 hours, which is about 40 kgjmmf. On 0.3 m 0.3% Mn the other hand, the strength of the comparative steel has P rapidly lowered to about 20 kg./mm.”. It is evident that these 5? i results shows excellent properties of this invention steel under 03 m some kind of environment containing H 8 gas and the like.
  • composition was determined mentionedabove should be and the like are not added to the steel.

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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 Steel (AREA)
  • Heat Treatment Of Articles (AREA)
  • Lubricants (AREA)
  • Earth Drilling (AREA)
US814276A 1968-04-08 1969-04-08 Corrosion resisting low alloy steel Expired - Lifetime US3622306A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2280968 1968-04-08

Publications (1)

Publication Number Publication Date
US3622306A true US3622306A (en) 1971-11-23

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US814276A Expired - Lifetime US3622306A (en) 1968-04-08 1969-04-08 Corrosion resisting low alloy steel

Country Status (7)

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US (1) US3622306A (enrdf_load_stackoverflow)
BE (1) BE731139A (enrdf_load_stackoverflow)
CA (1) CA926658A (enrdf_load_stackoverflow)
CS (1) CS181154B2 (enrdf_load_stackoverflow)
DE (1) DE1917919B2 (enrdf_load_stackoverflow)
FR (1) FR2005802A1 (enrdf_load_stackoverflow)
GB (1) GB1226512A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013119980A1 (en) * 2012-02-08 2013-08-15 Chevron U.S.A. Inc. Equipment for use in corrosive environments and methods for forming thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE452028B (sv) * 1982-04-30 1987-11-09 Skf Steel Eng Ab Anvendning av ror framstellda av kolstal eller laglegerat stal i sur, svavelvetehaltig miljo
SE451602B (sv) * 1982-08-18 1987-10-19 Skf Steel Eng Ab Anvendning av stang framstelld av kolstal eller laglegerat stal i sur, svavelvetehaltig miljo

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2763544A (en) * 1950-11-03 1956-09-18 Nyby Bruk Ab Chromium steel
US2845345A (en) * 1958-07-29 Process for purifying mercury

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2845345A (en) * 1958-07-29 Process for purifying mercury
US2763544A (en) * 1950-11-03 1956-09-18 Nyby Bruk Ab Chromium steel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013119980A1 (en) * 2012-02-08 2013-08-15 Chevron U.S.A. Inc. Equipment for use in corrosive environments and methods for forming thereof
US9352369B2 (en) 2012-02-08 2016-05-31 Chevron U.S.A. Inc. Equipment for use in corrosive environments and methods for forming thereof

Also Published As

Publication number Publication date
GB1226512A (enrdf_load_stackoverflow) 1971-03-31
DE1917919A1 (de) 1972-03-02
CS181154B2 (en) 1978-03-31
BE731139A (enrdf_load_stackoverflow) 1969-09-15
CA926658A (en) 1973-05-22
DE1917919B2 (de) 1973-01-11
FR2005802A1 (enrdf_load_stackoverflow) 1969-12-19

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