EP2828414B1 - Zunderarmer vergütungsstahl und verfahren zur herstellung eines zunderarmen bauteils aus diesem stahl - Google Patents

Zunderarmer vergütungsstahl und verfahren zur herstellung eines zunderarmen bauteils aus diesem stahl Download PDF

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EP2828414B1
EP2828414B1 EP13728095.4A EP13728095A EP2828414B1 EP 2828414 B1 EP2828414 B1 EP 2828414B1 EP 13728095 A EP13728095 A EP 13728095A EP 2828414 B1 EP2828414 B1 EP 2828414B1
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Prior art keywords
strip
hot
scaling
rolled
steel
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German (de)
English (en)
French (fr)
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EP2828414A1 (de
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Joachim SCHÖTTLER
Friedrich Luther
Stefan MÜTZE
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Salzgitter Flachstahl GmbH
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Salzgitter Flachstahl GmbH
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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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0631—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a travelling straight surface, e.g. through-like moulds, a belt
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
    • 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/126—Accessories for subsequent treating or working cast stock in situ for cutting
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/001—Austenite
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2241/00—Treatments in a special environment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988—Metal casting
    • Y10T29/49991—Combined with rolling

Definitions

  • the invention further relates to a method for producing a low-scaling component according to claim 8, as well as the production of a strip from this steel according to claim 14.
  • Such components are made of precursors such.
  • B. made of sheets, sheet metal blanks, seamless or welded tubes and mainly used in the automotive industry, but also in agricultural machinery z.
  • wear plates or wind turbines for example as supporting structures, there are applications.
  • the tempering state of a component is achieved by austenitizing, quenching and subsequent tempering of the steel material, wherein, depending on the conditions of use, components are also used only in the hardened, ie not tempered state.
  • the primary suppliers are trying to meet this need by reducing the wall thickness by providing high-strength and ultra-high-strength steels, while at the same time improving component behavior during production and operation.
  • press-hardened components by means of quenching precursors from press-hardenable steels by hot forming in a forming tool is known from US Pat DE 601 19 826 T2 known.
  • Component experiences a quench hardening (press hardening) in the forming tool and thereby achieves the required strength properties.
  • the metallic coating acts here as oxidation or Verzu mattersstikes.
  • the metallic coating which acts as an oxidation or anti-scaling agent is usually applied to the hot or cold strip in a continuous continuous process.
  • hot-dip coatings this z. B. a hot dip galvanizing or Be Feueralumtechnik.
  • non-metallic lacquer-based coating as oxidation protection instead of a metallic coating.
  • electrodeposited metallic layer of zinc and nickel is also known.
  • tempered steels which have the problem that at Al contents of more than 0.015%, the required austenitizing temperatures of 950 to 1050 ° C. are very high, resulting in, among other things, severe scaling.
  • the steel is used in the In order to prevent the aluminum nitride precipitates in the steel, which are recognized as harmful for sufficient hardenability, they have been added to the nitrogen content of a coordinated amount of zirconium.
  • the inventive tempered steels AH with good tempering properties investigated there in Table 1 have the following alloy composition in%: C: 0.32-0.75, Si: 0.26-0.37, Mn: 0.40-1.50, P : 0.009-0.012, S: 0.005-0.012, Al: 0.016-0.022, Cr: 0.02-1.52, Zr: 0.035-0.060, N: 0.0042-0.0065.
  • JP H10 212 560 A Another low-zinc tempering steel with similar chemical composition is out JP H10 212 560 A however, Cr, Ti and B remain optional in this steel.
  • the object of the invention is to provide a tempering steel, which is characterized without coating or coating by a very low tendency to mist and thus makes a subsequent removal of the scale before further processing superfluous.
  • this tempering steel should also be suitable for press-forming of precursors, such as metal sheets, sheet metal blanks or pipes.
  • Another object is to provide a method for producing a low-scale component from this steel.
  • the material according to the invention has over that from the DE 601 19 826 T2 known tempering steel on the advantage that an additional oxidation protection is no longer required before the press hardening.
  • the transition temperature Ac 3 is lowered significantly again by adding the austenite former manganese in the inventive contents of from 0.5 to 6% by weight of the austenitizing temperatures.
  • the sum of manganese, nickel and copper should not be less than 1.0% by weight, better still 2.0% by weight, optimally 3.0% by weight.
  • Ni While nickel generally has a very strong influence on the transformation temperatures but is quite expensive, copper, especially in high aluminum steel, significantly reduces the transformation temperatures and is relatively inexpensive.
  • the addition of Cu in combination with Ni is optimal in order to avoid copper-related surface defects such as any hot brittleness that may occur.
  • the steel according to the invention contains 0.5% to 3.0% by weight of a fraction of the oxygen-affine element aluminum which is excessive compared with known tempering steels and additionally, optionally, levels of the oxygen-affine elements also comprise silicon and / or chromium.
  • the total sum of aluminum, silicon and chromium should be at least 1.0% by weight, better still 2.0% by weight, optimally 3.0% by weight.
  • the inventive tempering steel thus has an intrinsic anti-scaling protection, which makes an additional coating as anti-scaling or subsequent scale removal unnecessary before further processing.
  • titanium is added to the tempering steel in contents of 0,010 - ⁇ 0,050% and boron in contents of 0,0015 - ⁇ 0,0040%.
  • the element boron improves the hardenability of the steel by advantageously shifting the relevant transformation points. This is additionally promoted by the addition of titanium, in that the nitrogen present in the steel is set to titanium nitrides. In this way, boron nitride precipitates are avoided and the effectiveness of the added boron is improved.
  • the oxygen content or moisture content in a nitrogen-containing Furnace atmosphere which may optionally contain hydrogen, carbon monoxide and carbon dioxide, to reduce so far that the dew point is advantageously below 0 ° C, since at low oxygen levels or low dew points in comparison to manganese oxygen-affine elements such as aluminum or silicon or chromium reinforced on the workpiece surface oxidize and form oxide films.
  • the dew point is lowered to below -10 ° C or even below -20 ° C or even below -30 ° C, so that forms a stable and dense layer of advantageous aluminum oxides and optionally also silicon and Chromium oxides are formed on the surface of the heated precursor.
  • the lowering of the dew point is advantageously achieved by using nitrogen with a correspondingly low moisture content.
  • the melt be flow-calmed and bend-free in a horizontal strip casting plant to a preliminary strip in the range between 6 and 30 mm and then rolled to hot strip with a degree of deformation of at least 50%.
  • the flow calming can be achieved by using a follower electromagnetic brake which produces a field synchronous or at an optimum relative speed to the belt, which ensures that the speed of the melt feed is ideally equal to the speed of the circulating conveyor belt.
  • the considered disadvantageous bending of the solidifying Vorbandes is thereby avoided that the underside of the melt receiving casting tape is supported on a plurality of adjacent rollers. Reinforced is the Support in such a way that in the region of the casting belt, a negative pressure is generated, so that the casting belt is pressed firmly on the rollers
  • the length of the conveyor belt is selected so that at the end of the conveyor belt before its deflection, the Vorband is largely solidified.
  • a homogenization zone which is used for a temperature compensation and possible voltage reduction in the opening band.
  • Rolling of the pre-strip to hot strip can be done either in-line or separately off-line.
  • the pre-strip Before off-line rolling, the pre-strip may be either directly hot-rolled or sliced into sheets after manufacture prior to cooling. The strip or sheet material is then reheated after eventual cooling and unwound for off-line rolling or reheated and rolled as a sheet.
  • a horizontal strip casting plant consisting of a circulating conveyor belt 2 and two deflection rollers 3, 3 '.
  • a side seal 4 which prevents the discontinued melt 5 can flow down to the right and left of the conveyor belt 2.
  • the melt 5 is transported by means of a pan 6 to the strip casting plant 1 and flows through a provided in the bottom of the pan opening 7 in a feed vessel 8.
  • This feed vessel 8 is formed as an overflow vessel.
  • a homogenization zone 10 at. This consists of a thermally insulated housing 11 and a roller table, not shown here.
  • the then following first stand 12 is formed either only as a pure drive unit, possibly with a small puncture or as a roll unit with a predetermined puncture.
  • a pair of scissors 20 is arranged between the end of the cooling section 17 and reel 19, 19 '.
  • This scissors 20 has the task of dividing the hot strip 18 transversely as soon as one of the two reels 19, 19 'is fully wound.
  • the beginning of the subsequent hot strip 18 is then passed to the second vacant reel 19, 19 '. This ensures that the tape tension is maintained over the entire tape length. This is particularly important in the production of thin hot strips.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
EP13728095.4A 2012-03-23 2013-03-19 Zunderarmer vergütungsstahl und verfahren zur herstellung eines zunderarmen bauteils aus diesem stahl Active EP2828414B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102012006470 2012-03-23
DE102013004905A DE102013004905A1 (de) 2012-03-23 2013-03-15 Zunderarmer Vergütungsstahl und Verfahren zur Herstellung eines zunderarmen Bauteils aus diesem Stahl
PCT/DE2013/000165 WO2013139327A1 (de) 2012-03-23 2013-03-19 Zunderarmer vergütungsstahl und verfahren zur herstellung eines zunderarmen bauteils aus diesem stahl

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EP2828414A1 EP2828414A1 (de) 2015-01-28
EP2828414B1 true EP2828414B1 (de) 2017-08-30

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US (2) US10036085B2 (ru)
EP (1) EP2828414B1 (ru)
KR (1) KR102054878B1 (ru)
DE (1) DE102013004905A1 (ru)
RU (1) RU2618958C2 (ru)
WO (1) WO2013139327A1 (ru)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019100140A1 (de) 2019-01-04 2020-07-09 Salzgitter Flachstahl Gmbh Aluminiumbasierte Beschichtung für Stahlflachprodukte zur Pressformhärtung von Bauteilen und Verfahren zur Herstellung hierzu

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013013407B4 (de) * 2013-08-07 2015-05-28 Salzgitter Flachstahl Gmbh Verfahren zur Herstellung von Schneid- und Zerspanwerkzeugen aus Stahl mit verbesserter Standzeit
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US20180237892A1 (en) 2018-08-23
US20150020992A1 (en) 2015-01-22
RU2618958C2 (ru) 2017-05-11
KR102054878B1 (ko) 2020-01-22
US10036085B2 (en) 2018-07-31
KR20140138801A (ko) 2014-12-04
WO2013139327A1 (de) 2013-09-26
RU2014142690A (ru) 2016-05-20

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