DE968682C - Steel for diffusion chrome-plated items - Google Patents

Steel for diffusion chrome-plated items

Info

Publication number
DE968682C
DE968682C DED17760A DED0017760A DE968682C DE 968682 C DE968682 C DE 968682C DE D17760 A DED17760 A DE D17760A DE D0017760 A DED0017760 A DE D0017760A DE 968682 C DE968682 C DE 968682C
Authority
DE
Germany
Prior art keywords
steel
content
chrome
diffusion
diffusion chrome
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
DED17760A
Other languages
German (de)
Inventor
Dipl-Chem Dr Phil Gottf Becker
Dr-Ing Karl Bungardt
Dr-Ing Karl Daeves
Dr-Ing Franz Nehl
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.)
Deutsche Edelstahlwerke AG
Original Assignee
Deutsche Edelstahlwerke 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 Deutsche Edelstahlwerke AG filed Critical Deutsche Edelstahlwerke AG
Priority to DED17760A priority Critical patent/DE968682C/en
Application granted granted Critical
Publication of DE968682C publication Critical patent/DE968682C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
    • C23C10/34—Embedding in a powder mixture, i.e. pack cementation
    • C23C10/36—Embedding in a powder mixture, i.e. pack cementation only one element being diffused
    • C23C10/38—Chromising
    • C23C10/40—Chromising of ferrous surfaces

Landscapes

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

Description

Stahl für diffusionsverchromte Gegenstände Zusatz zum Patent 9'68 320 Gegenstand des Patentes 968 320 ist die Verwendung eines Stahles mit unter o,20/0, vorzugsweise unter o, i "io Kohlenstoff und einem Gehalt an Titan, Tantal und Niob, einzeln oder zu mehreren, in einer den gesamten Kohlenstoff stabil abbindenden Menge sowie einem Gehalt von i,0 bis 2,5'/0, vorzugsweise i,5 bis 1,9% Kupfer, Rest Eisen, und den üblichen Verunreinigungen an Phosphor und Schwefel sowie den bei der Stahlherstellung üblichen Gehalten an Mangan und Silizium bis zusammen höchstens i % als Werkstoff für die Herstellung von Gegenständen, die über die Gasphase diffusionsverchromt werden sollen. Der Mangan- und Siliziumgehalt kann auch erhöht sein, so daß je o,5 bis i,o% von diesen Elementen vorhanden sind. Es hat sich nun gezeigt, daß derartige Stähle für den obengenannten Verwendungszweck vorteilhafterweise noch mit einem Nickelgehalt von 0,3 bis 1,5 % versehen werden können. Durch den zusätzlichen Nickelgehalt wird erreicht, daß der Werkstoff sich leichter warm verarbeiten läßt. Es ist ferner möglich, die Festigkeitseigenschaften des zu verwendenden Werkstoffes zu steigern, indem er mit einem Molybdängehalt versehen wird, der bis zu o,5 % beträgt.Is steel for diffusion chrome-plated objects addition to Patent 9'68 320 object of the patent 968 320 the use of a steel with at o, 20/0, preferably from O, i "io carbon and containing titanium, tantalum and niobium, individually or several, in an amount that stably sets the entire carbon and a content of 1.0 to 2.5 '/ 0, preferably 1.5 to 1.9% copper, remainder iron, and the usual impurities of phosphorus and sulfur as well as the Manganese and silicon contents common in steel production up to a combined maximum of i% as a material for the production of objects that are to be diffusion chrome-plated via the gas phase. The manganese and silicon content can also be increased, so that each 0.5 to 1.0% It has now been shown that such steels can advantageously be provided with a nickel content of 0.3 to 1.5% for the above-mentioned purpose It is achieved that the material can be processed more easily while hot. It is also possible to increase the strength properties of the material to be used by providing it with a molybdenum content of up to 0.5%.

Demgemäß wird vorgeschlagen, den Stahl in der im Patent vorgesehenen Zusammensetzung, jedoch mit einem zusätzlichen Gehalt von 0,3 bis 1,5 0/0 Nickel zu verwenden und gegebenenfalls einen Molybdängehalt bis o,5% vorzusehen. In manchen Fällen kann- es zur Erhöhung der Festigkeit zweckmäßig sein, den Silizium- und/oder Mangangehalt auf 1,5 % zu erhöhen.Accordingly, it is proposed to use the steel in the composition provided in the patent, but with an additional nickel content of 0.3 to 1.5% and, if necessary, a molybdenum content of up to 0.5%. In some cases it can be useful to increase the strength to increase the silicon and / or manganese content to 1.5%.

Claims (1)

PATENTANSPRUCH: Verwendung eines Stahles mit unter o,2 %, vorzugsweise unter o, i % Kohlenstoff und einem Gehalt an Titan, Tantal und Niob, einzeln oder zu mehreren, in einer den gesamten Kohlenstoff stabil abbindenden Menge sowie einem Gehalt von i,o bis 2,5%, vorzugsweise 1,5 bis i,90/0 Kupfer, Rest Eisen, und den üblichen Verunreinigungen an Phosphor und Schwefel sowie den bei der Stahlherstellung üblichen Gehalten an Mangan und Silizium bis zusammen höchstens i % als Werkstoff für die Herstellung von Gegenständen, die über die Gasphase diffusionsverchromt werden sollen, nach Patent 968 320, der jedoch noch 0,3 bis 1,5 % Nickel und gegebenenfalls bis 0,5% Molybdän enthält. PATENT CLAIM: Use of a steel with less than 0.2%, preferably less than 0.1% carbon and a content of titanium, tantalum and niobium, individually or in groups, in an amount that stably sets the entire carbon and a content of i, o to 2.5%, preferably 1.5 to i, 90/0 copper, the remainder iron, and the usual impurities of phosphorus and sulfur as well as the usual levels of manganese and silicon in steel production up to a combined maximum of i% as a material for the production of Objects that are to be diffusion chrome-plated via the gas phase, according to patent 968 320, which, however, still contains 0.3 to 1.5% nickel and possibly up to 0.5% molybdenum.
DED17760A 1954-05-14 1954-05-14 Steel for diffusion chrome-plated items Expired DE968682C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED17760A DE968682C (en) 1954-05-14 1954-05-14 Steel for diffusion chrome-plated items

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED17760A DE968682C (en) 1954-05-14 1954-05-14 Steel for diffusion chrome-plated items

Publications (1)

Publication Number Publication Date
DE968682C true DE968682C (en) 1958-03-20

Family

ID=7035786

Family Applications (1)

Application Number Title Priority Date Filing Date
DED17760A Expired DE968682C (en) 1954-05-14 1954-05-14 Steel for diffusion chrome-plated items

Country Status (1)

Country Link
DE (1) DE968682C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1107262B (en) * 1959-02-18 1961-05-25 Deutsche Edelstahlwerke Ag Steel for objects that have to be corrosion-resistant after chromium enrichment of the surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1107262B (en) * 1959-02-18 1961-05-25 Deutsche Edelstahlwerke Ag Steel for objects that have to be corrosion-resistant after chromium enrichment of the surface

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