DE697272C - Use of a chromium-molybdenum-titanium-iron alloy - Google Patents

Use of a chromium-molybdenum-titanium-iron alloy

Info

Publication number
DE697272C
DE697272C DE1935ST053896 DEST053896D DE697272C DE 697272 C DE697272 C DE 697272C DE 1935ST053896 DE1935ST053896 DE 1935ST053896 DE ST053896 D DEST053896 D DE ST053896D DE 697272 C DE697272 C DE 697272C
Authority
DE
Germany
Prior art keywords
molybdenum
chromium
titanium
iron alloy
resistant
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
DE1935ST053896
Other languages
German (de)
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.)
Buderus Edelstahl GmbH
Original Assignee
Stahlwerke Roechling Buderus 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 Stahlwerke Roechling Buderus AG filed Critical Stahlwerke Roechling Buderus AG
Priority to DE1935ST053896 priority Critical patent/DE697272C/en
Application granted granted Critical
Publication of DE697272C publication Critical patent/DE697272C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B11/00—Oxides or oxyacids of halogens; Salts thereof
    • C01B11/04—Hypochlorous acid
    • C01B11/06—Hypochlorites

Description

Verwendung einer Chrom-Molybdän-Titan-Eisenlegierung Als Werkstoff für Gegenstände, die Korrosionsbeständigkeit gegen Calciumhypochlorit enthaltende Lösungen, insbesondere bei dei Herstellung von Chlorkalk, erfordern, hat man als rostbeständig bekannte Stähle in Vorschlag gebracht bzw. praktisch verwendet. Hauptsächlich handelt es sich um Chrom-Nickel-Molybdän-Stähle, insbesondere um den als hochkorrosionsbeständig bekannten Stahl etwa folgender Zusammensetzung: o,o8 % Kohlenstoff, =7,26 °/o Chrom, -11,74 °% Nickel, 5,00 % Molybdän, -dazu geringe Mengen Mangan und Silicium. Auch bei diesem Stahl tritt in kurzer Zeit im praktischen Betrieb starker Lochfraß ein, wenngleich solche Stähle gelegentlich als beständig gegen Calciumhypochlorit bezeichnet worden sind.Use of a chromium-molybdenum-titanium-iron alloy as material for articles that contain corrosion resistance to calcium hypochlorite Solutions, especially in the production of chlorinated lime, require, one has as known rust-resistant steels proposed or used in practice. Mainly it is chrome-nickel-molybdenum steels, especially those that are highly corrosion-resistant known steel approximately of the following composition: 0.08% carbon, = 7.26% chromium, -11.74% nickel, 5.00% molybdenum, plus small amounts of manganese and silicon. Even In this steel, severe pitting corrosion occurs in a short time in practical operation, although such steels are sometimes referred to as being resistant to calcium hypochlorite have been.

Die Erfindung betrifft nun aii sich als korrosionsbeständig bekannte Stahllegierungen folgender Zusammensetzung: unter o,5o 0/0 Kohlenstoff, unter 1,oo % Mangan, unter 3,00 % Silicium, 2o,oo bis 30,00 % Chrom, ' 1,8o bis 4,00 % Molybdän, o,5o bis 3,50 % Titan, Rest Eisen und die üblichen Verunreinigungen. Es hat sich nun überraschenderweise herausgesfellt, daß ein derartiger Stahl in so hohem Maße beständig gegen Calciumhypochlorit enthaltende Lösungen ist, wie man es nach den Erfahrungen 'mit den übrigen als korrosionsbeständig bekannten Stählen nicht erwarten konnte. Dieser Stahl hat in den meisten Fällen, selbst nach monatelanger Einwirkung, .noch keinen Lochfraß gezeigt. Auch bei höheren Temperaturen ist diese Legierung. beständig gegen die vorgenannten Lösungen.The invention now relates to all known to be corrosion resistant Steel alloys of the following composition: less than 0.5o 0/0 carbon, less than 1, oo % Manganese, less than 3.00% silicon, 2o, oo to 30.00% chromium, 1.8o to 4.00% molybdenum, 0.5o to 3.50% titanium, the remainder iron and the usual impurities. It has Now, surprisingly, it turned out that such a steel to such a great extent Resistant to solutions containing calcium hypochlorite, as one would expect Do not expect experience with the other steels known to be corrosion-resistant could. In most cases, even after months of exposure, this steel .not yet shown any pitting. This alloy is also at higher temperatures. resistant to the aforementioned solutions.

Claims (1)

PATENTANSPRUCH: Die Verwendung einer Chrom-Molybdän-Titan-Eisenlegierung mit unter 0,50 % Kohlenstoff, unter 1,öo % Mangan, unter 3,00 % Silicium, äo,oo bis 30,00 % Chrom, 1,8o bis 4,00 % Molybdän, 0,5o bis 3,50 % Titan, Rest Eisen und die üblichen Verunreinigungen, als Werkstoff für Gegenstände, die gegen den Angriff von Calciumhypochlorit enthaltenden Lösungen beständig sein sollen.PATENT CLAIM: The use of a chromium-molybdenum-titanium-iron alloy with less than 0.50% carbon, less than 1.0% manganese, less than 3.00% silicon, eo, oo up to 30.00% chromium, 1.80 to 4.00% molybdenum, 0.5o to 3.50% titanium, the remainder iron and the usual impurities, as a material for objects against the attack of solutions containing calcium hypochlorite should be resistant.
DE1935ST053896 1935-09-11 1935-09-11 Use of a chromium-molybdenum-titanium-iron alloy Expired DE697272C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1935ST053896 DE697272C (en) 1935-09-11 1935-09-11 Use of a chromium-molybdenum-titanium-iron alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1935ST053896 DE697272C (en) 1935-09-11 1935-09-11 Use of a chromium-molybdenum-titanium-iron alloy

Publications (1)

Publication Number Publication Date
DE697272C true DE697272C (en) 1940-10-10

Family

ID=7466871

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1935ST053896 Expired DE697272C (en) 1935-09-11 1935-09-11 Use of a chromium-molybdenum-titanium-iron alloy

Country Status (1)

Country Link
DE (1) DE697272C (en)

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