DE629759C - Corrosion-resistant chrome-nickel-iron alloy - Google Patents

Corrosion-resistant chrome-nickel-iron alloy

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Publication number
DE629759C
DE629759C DEK135290D DEK0135290D DE629759C DE 629759 C DE629759 C DE 629759C DE K135290 D DEK135290 D DE K135290D DE K0135290 D DEK0135290 D DE K0135290D DE 629759 C DE629759 C DE 629759C
Authority
DE
Germany
Prior art keywords
nickel
chromium
corrosion
iron alloy
iron
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
Application number
DEK135290D
Other languages
German (de)
Inventor
Dr Carl Carius
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.)
Krupp Stahl AG
Original Assignee
Krupp Stahl 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 Stahl AG filed Critical Krupp Stahl AG
Priority to DEK135290D priority Critical patent/DE629759C/en
Application granted granted Critical
Publication of DE629759C publication Critical patent/DE629759C/en
Expired legal-status Critical Current

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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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Secondary Cells (AREA)

Description

Korrosionsbeständige Chrom-Nickel-Eisen-Legierung Gegenstand der Erfindung bilden bestimmte korrosionsbeständige Chrom-Nickel-Molybdän-Eisen-Legierungen mit einem zusätzlichen Gehalt von 2 bis 7 % Antimon. Diese Legierungen zeichnen sich durch hohe Korrosionsbeständigkeit aus und sind z. B. in ihrer Beständigkeit gegen Natron- oder Kalilauge und insbesondere gegen Salzsäure den antimonfreien gebräuchlichen Chrom-Nickel-Molybdän-Eisen-Legierungen, z. B. den bekannten acustenitischen Chrom-Nickel-Molybdän-Stählen, erheblich überlegen. Eine weitere Verbesserung der Legierungen kann noch durch einen Gjehalt von bis zu io % Kupfer neben 2 bis 7 % Antimon erreicht werden.Corrosion-resistant chromium-nickel-iron alloy is the subject of the invention form certain corrosion-resistant chromium-nickel-molybdenum-iron alloys with an additional content of 2 to 7% antimony. These alloys stand out are characterized by high corrosion resistance and are z. B. in their resistance to Sodium or potassium hydroxide and especially the antimony-free ones that are commonly used against hydrochloric acid Chromium-nickel-molybdenum-iron alloys, e.g. B. the well-known acustenitic chromium-nickel-molybdenum steels, considerably superior. A further improvement of the alloys can be achieved by a A content of up to 10% copper and 2 to 7% antimony can be achieved.

Die einzelnen Bestandteile der Legierungen sind in folgenden Mengen vorhanden: o bis i % Kohlenstoff, io bis 25 % Chrom, 2o bis 4.0 0% Nickel, i bis io % Molybdän, 2 bis 7 % Antimon, o bis io % Kupfer, Rest Eisen ohne oder mit den üblichen Verunreinigungen. Als besonders vorteilhaft haben sich Legierungen erwiesen, die weniger als o,2 % Kohlenstoff, 13 bis 2o % Chrom, 27 bis 33 0% Nickel, 2 bis 5 % Molybdän, 3 bis 5 % Antimon, Rest Eisen ohne oder mit den üblichen Verunreinigungen, und gegebenenfalls noch 2 bis 6 % Kupfer enthalten. Eine Legierung mit o,i5 % Kohlenstoff, 18 0% Chrom, 30 % Nickel, 5 % Molybdän, 5 °% Antimon, 5 % Kupfer, Rest Eisen ohne oder mit den üblichen Verunreinigungen wurde z. B. in 2o%iger heißer Salzsäure nicht nennenswert angegriffen. Die Legierungen können, um besonders gute Eigenschaften zu besitzen, der für korrisionsbeständige Stähle üblichen Wärmebehandlung unterworfen. werden.The individual components of the alloys are in the following quantities present: o to i% carbon, io to 25% chromium, 2o to 4.0 0% nickel, i to 10% molybdenum, 2 to 7% antimony, 0 to 10% copper, the remainder iron with or without the usual impurities. Alloys have proven to be particularly advantageous, which is less than 0.2% carbon, 13 to 2o% chromium, 27 to 33 0% nickel, 2 to 5% molybdenum, 3 to 5% antimony, the remainder iron with or without the usual impurities, and optionally also contain 2 to 6% copper. An alloy with 0.15% carbon, 18 0% chromium, 30% nickel, 5% molybdenum, 5% antimony, 5% copper, the remainder without iron or with the usual impurities such. B. in 20% hot hydrochloric acid not notably attacked. The alloys can have particularly good properties to have, subjected to the usual heat treatment for corrosion-resistant steels. will.

Claims (3)

PATENTANSPRÜCHE: ' i. Chrom-Nickel-Eisen-Legierung mit o bis i % Kohlenstoff, io bis 25 0% Chrom, 2o bis q0 % Nickel, i bis io % Molybdän, 2 bis 7 % Antimon, o bis io % Kupfer, Rest Eisen. PATENT CLAIMS: 'i. Chromium-nickel-iron alloy with o to i% carbon, io to 25 0% chromium, 2o to q0% nickel, i to io% molybdenum, 2 to 7% antimony, 0 to 10% copper, the remainder iron. 2. Chrom-Nickel-Eisen-Legierung nach Anspruch i mit weniger als o,2 % Kohlenstoff, 13 bis 2o 0% Chrom, 27 bis 33 0/0 Nickel, 2 bis 5 % Molybdän, 3 bis 5 0/0 Antimon, Rest Eisen. 2. Chromium-nickel-iron alloy according to claim i with less than 0.2% carbon, 13 to 20% chromium, 27 to 33% nickel, 2 to 5 % Molybdenum, 3 to 5% antimony, remainder iron. 3. Chrom-Nickel-Eisen-Legierung mit den Gehalten an Kohlenstoff, Chrom, Nickel, Molybdän und Antimon wie im Anspruch 2, ferner mit 2 bis 6 0% Kupfer, Rest Eisen. q.. Chrom-Nickel-Eisen-Legierung nach Anspruch 3 mit o,i5 % Kohlenstoff, 18 0/0 Chrom, 30 % Nickel, 5 0% Molybdän, 5 0%0 Antimon, 5 % Kupfer, Rest Eisen.3. Chromium-nickel-iron alloy with the contents of carbon, chromium, nickel, molybdenum and antimony as in the claim 2, furthermore with 2 to 6 0% copper, the remainder iron. q .. chrome-nickel-iron alloy according to Claim 3 with 0.15% carbon, 18% chromium, 30% nickel, 50% molybdenum, 50% 0 Antimony, 5% copper, the remainder iron.
DEK135290D 1934-09-14 1934-09-14 Corrosion-resistant chrome-nickel-iron alloy Expired DE629759C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK135290D DE629759C (en) 1934-09-14 1934-09-14 Corrosion-resistant chrome-nickel-iron alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK135290D DE629759C (en) 1934-09-14 1934-09-14 Corrosion-resistant chrome-nickel-iron alloy

Publications (1)

Publication Number Publication Date
DE629759C true DE629759C (en) 1936-05-09

Family

ID=7248334

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK135290D Expired DE629759C (en) 1934-09-14 1934-09-14 Corrosion-resistant chrome-nickel-iron alloy

Country Status (1)

Country Link
DE (1) DE629759C (en)

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