CH191889A - Corrosion-resistant iron alloy. - Google Patents

Corrosion-resistant iron alloy.

Info

Publication number
CH191889A
CH191889A CH191889DA CH191889A CH 191889 A CH191889 A CH 191889A CH 191889D A CH191889D A CH 191889DA CH 191889 A CH191889 A CH 191889A
Authority
CH
Switzerland
Prior art keywords
sep
nickel
iron alloy
chromium
corrosion
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Fried Krupp
Original Assignee
Krupp Ag
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 Krupp Ag filed Critical Krupp Ag
Publication of CH191889A publication Critical patent/CH191889A/en

Links

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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Secondary Cells (AREA)

Description

  

  Korrosionsbeständige Eisenlegierung.    Gegenstand der Erfindung bildet eine kor  rosionsbeständige     Chrom-Nickel-Molybdän-          Eisenlegierung    mit einem Gehalt an Antimon.  Die erfindungsgemässe Legierung besitzt eine  hohe Korrosionsbeständigkeit, und ist zum  Beispiel in ihrer Beständigkeit gegen     Natron-          oder    Kalilauge und insbesondere gegen Salz  säure den gebräuchlichen     Chrom-Nickel-Molyb-          dän-Eisenlegierungen,    zum Beispiel den be  kannten     austenitischen        Chrom-Nickel-Molyb-          dän-Stählen,    erheblich überlegen.

   Die Legie  rung kann zweckmässig noch einen Zusatz von  Kupfer enthalten.  



  Die Legierung gemäss vorliegender Erfin  dung weist neben Eisen folgende Bestandteile       auf:        0,02-1%        Kohlenstoff,        10-25        %        Chrom,          20-40%        Nickel,        1-10'/o        Molybdän,        0,5     bis 2/o Antimon.

   Als besonders vorteilhaft  hat sich eine Legierung erwiesen, die weniger       als        0,2%        .Kohlenstoff,        13-20'/o        Chrom,        27          bis        33%        Nickel,        2-5%        Molybdän,        0,5        bis       2     %        Antimon,        Rest        Eisen,

          ohne        oder        mit        den     üblichen Verunreinigungen und gegebenenfalls  noch 2-6/o Kupfer enthält. Sehr wider  standsfähig, zum Beispiel gegen den Angriff  heisser, hochprozentiger Salzsäure, hat sich  eine Legierung mit     0,04'/o    Kohlenstoff,     13'/o          Chrom,        30'/o        Nickel,        P        /o        Molybdän,        5%          Kupfer,        1,

  5        %        Antimon,        Rest        Eisen,        erwiesen.  



  Corrosion-resistant iron alloy. The invention forms a corrosion-resistant chromium-nickel-molybdenum-iron alloy with an antimony content. The alloy according to the invention has a high corrosion resistance, and is, for example, in its resistance to sodium or potassium hydroxide and especially to hydrochloric acid, the common chromium-nickel-molybdenum-iron alloys, for example the known austenitic chromium-nickel-molybdenum - Steels, considerably superior.

   The alloy can usefully also contain an addition of copper.



  The alloy according to the present invention has the following components in addition to iron: 0.02-1% carbon, 10-25% chromium, 20-40% nickel, 1-10% molybdenum, 0.5 to 2 / o antimony.

   An alloy has proven to be particularly advantageous which contains less than 0.2% carbon, 13-20% chromium, 27 to 33% nickel, 2-5% molybdenum, 0.5 to 2% antimony, the remainder iron,

          with or without the usual impurities and optionally also contains 2-6 / o copper. An alloy with 0.04 '/ o carbon, 13' / o chromium, 30 '/ o nickel, p / o molybdenum, 5% copper, 1, has proven to be very resistant, for example against the attack of hot, high-percentage hydrochloric acid.

  5% antimony, the remainder iron, has been proven.

Claims (1)

PATENTANSPRUCH: Korrosionsbeständige Chrom-Nickel-Eisen- legierung, die neben Eisen 0,02-10/ö Kohlen stoff, 10-25/o Chrom, 20-40'/o Nickel, 1-10% Molybdän, 0,5-2% Antimon auf- weist. UNTERANSPRüCHE 1. PATENT CLAIM: Corrosion-resistant chromium-nickel-iron alloy, which contains 0.02-10% carbon, 10-25% chromium, 20-40% nickel, 1-10% molybdenum, 0.5-2 % Antimony. SUBCLAIMS 1. Chrom-Nickel-Eisenlegierunguach Patent- anspruch mit weniger als 0,2% Kohlen- stoff, 13-20 % Chrom, 27-33 % Nickel, 2-5% Molybdän, 0,5-2 "/o Antimon, Rest Eisen. Chromium-nickel-iron alloy according to patent claim with less than 0.2% carbon, 13-20% chromium, 27-33% nickel, 2-5% molybdenum, 0.5-2 "/ o antimony, remainder iron. EMI0002.0001 2. <SEP> Chrom-Nickel-Eisenlegierung <SEP> nach <SEP> Patent anspruch <SEP> mit <SEP> weniger <SEP> als <SEP> 0,2 <SEP> 0% <SEP> Kohlen stoff, <SEP> 13-20 <SEP> % <SEP> Chrom, <SEP> 27-33 <SEP> 0% <SEP> Nickel, <tb> 2-5'/o <SEP> Molybdän, <SEP> 0,5-2% <SEP> Antimon, <tb> 2-6:% <SEP> Kupfer, <SEP> Rest <SEP> Eisen. EMI0002.0002 3. <SEP> Chrom-Nickel-Eisenlegierung <SEP> nach <SEP> Unter anspruch <SEP> 2 <SEP> mit <SEP> 0,040% <SEP> Kohlenstoff, <SEP> <B>1311/0</B> <tb> Chrom, <SEP> 30 <SEP> % <SEP> Nickel, <SEP> 5 <SEP> % <SEP> Molybdän, <SEP> 5 <SEP> 0/0 <tb> Kupfer, <SEP> 1,5"/o <SEP> Antimon, <SEP> Rest <SEP> Eisen. EMI0002.0001 2. <SEP> chrome-nickel-iron alloy <SEP> according to <SEP> patent claim <SEP> with <SEP> less <SEP> than <SEP> 0.2 <SEP> 0% <SEP> carbon, <SEP > 13-20 <SEP>% <SEP> chromium, <SEP> 27-33 <SEP> 0% <SEP> nickel, <tb> 2-5 '/ o <SEP> molybdenum, <SEP> 0.5-2% <SEP> antimony, <tb> 2-6:% <SEP> copper, <SEP> remainder <SEP> iron. EMI0002.0002 3. <SEP> chrome-nickel-iron alloy <SEP> according to <SEP> sub-claim <SEP> 2 <SEP> with <SEP> 0.040% <SEP> carbon, <SEP> <B> 1311/0 </B> <tb> Chromium, <SEP> 30 <SEP>% <SEP> Nickel, <SEP> 5 <SEP>% <SEP> Molybdenum, <SEP> 5 <SEP> 0/0 <tb> copper, <SEP> 1.5 "/ o <SEP> antimony, <SEP> rest <SEP> iron.
CH191889D 1935-12-19 1936-09-28 Corrosion-resistant iron alloy. CH191889A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2090105X 1935-12-19

Publications (1)

Publication Number Publication Date
CH191889A true CH191889A (en) 1937-07-15

Family

ID=7984434

Family Applications (1)

Application Number Title Priority Date Filing Date
CH191889D CH191889A (en) 1935-12-19 1936-09-28 Corrosion-resistant iron alloy.

Country Status (3)

Country Link
US (1) US2090105A (en)
CH (1) CH191889A (en)
GB (1) GB461552A (en)

Also Published As

Publication number Publication date
US2090105A (en) 1937-08-17
GB461552A (en) 1937-02-18

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