EP1358359A2 - Steel and method for producing an intermediate product - Google Patents
Steel and method for producing an intermediate productInfo
- Publication number
- EP1358359A2 EP1358359A2 EP02719725A EP02719725A EP1358359A2 EP 1358359 A2 EP1358359 A2 EP 1358359A2 EP 02719725 A EP02719725 A EP 02719725A EP 02719725 A EP02719725 A EP 02719725A EP 1358359 A2 EP1358359 A2 EP 1358359A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel
- steels
- hot forming
- mass
- intermediate product
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 94
- 239000010959 steel Substances 0.000 title claims abstract description 94
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000013067 intermediate product Substances 0.000 title claims description 11
- 238000005260 corrosion Methods 0.000 claims abstract description 18
- 230000007797 corrosion Effects 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 11
- 229910052804 chromium Inorganic materials 0.000 claims description 11
- 229910052698 phosphorus Inorganic materials 0.000 claims description 11
- 239000011593 sulfur Substances 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 229910052758 niobium Inorganic materials 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 9
- 229910052785 arsenic Inorganic materials 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 229910052718 tin Inorganic materials 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 229910052748 manganese Inorganic materials 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- YBJHBAHKTGYVGT-ZKWXMUAHSA-N (+)-Biotin Chemical compound N1C(=O)N[C@@H]2[C@H](CCCCC(=O)O)SC[C@@H]21 YBJHBAHKTGYVGT-ZKWXMUAHSA-N 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 4
- FEPMHVLSLDOMQC-UHFFFAOYSA-N virginiamycin-S1 Natural products CC1OC(=O)C(C=2C=CC=CC=2)NC(=O)C2CC(=O)CCN2C(=O)C(CC=2C=CC=CC=2)N(C)C(=O)C2CCCN2C(=O)C(CC)NC(=O)C1NC(=O)C1=NC=CC=C1O FEPMHVLSLDOMQC-UHFFFAOYSA-N 0.000 claims description 4
- 102000016550 Complement Factor H Human genes 0.000 claims description 3
- 108010053085 Complement Factor H Proteins 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 238000005242 forging Methods 0.000 claims description 2
- 238000005098 hot rolling Methods 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 238000005496 tempering Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 235000019589 hardness Nutrition 0.000 description 25
- 239000011651 chromium Substances 0.000 description 9
- 239000010949 copper Substances 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 239000010955 niobium Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 6
- 238000005452 bending Methods 0.000 description 6
- 239000011572 manganese Substances 0.000 description 5
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 239000011575 calcium Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 229910000734 martensite Inorganic materials 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 150000003568 thioethers Chemical class 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
-
- 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
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
-
- 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
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- 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
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- 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
- 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
-
- 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
- C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
-
- 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
-
- 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
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
Definitions
- Martensitic, corrosion-resistant tool steels are used for the production of tools which are exposed to corrosive media in practice and which are subject to high demands on their hardness.
- Machining processes are an essential part of industrial production technology and a main cost when manufacturing tools for plastics processing.
- the economic usability of steels of the type mentioned above depends essentially on their machinability and their corrosion resistance, which in turn is decisively influenced by the chromium content of the steels.
- machinability means the property of a material that can be machined under certain conditions.
- a stainless martensitic steel with good machinability is known from EP 0 721 513 B1.
- the known steel contains 10 to 14 mass% chromium. To improve its machinability, it also has at least 0.15% sulfur and 1.0 to 3.5% copper. The addition of copper also has a positive influence on the hardness of the alloy.
- chromium-alloyed, corrosion-resistant steels are known, the chromium content of which is between 11.0 and 17.0 mass%. These are, for example, the steels designated with the material numbers 1.2080, 1.2082, 1.2083, 1.2085, 1.2201, 1.2314, 1.2316, 1.2319, 1.2361, 1.2376, 1.2378, 1.2379, 1.2380, 1.2436, 1.2601 in the StahlEisen list. These steels are regularly alloyed with carbon, silicon and manganese. They also optionally contain carbide formers such as molybdenum, vanadium or tungsten.
- the known steels are processed depending on the respective carbon and carbide content.
- the steels of the type in question are used on the one hand by the tool manufacturer in a tempered state with a hardness of 285 to 325 HB. With this hardness, machining of the material is still possible.
- the steels are processed in the soft annealed condition, the hardness of the steels then being a maximum of 250 HB. Such less hard steels can be processed better.
- a heat treatment must still be carried out after processing in order to achieve the usually required Achieve hardness of 46 to 60 HRC. Finishing is then required.
- the object of the invention is to find a steel which is particularly suitable for the production of tools for the plastics processing industry and which, with high hardness and corrosion resistance, has toughness, machinability and weldability which meet the practical requirements.
- a method for producing intermediate products from such a steel is to be specified.
- intermediate product is also understood to mean long products, flat products or other objects which are subsequently sent for further processing.
- P at most 0.035%
- S at least 0.04% and less than 0.15%
- Cr more than 8.0% and less than 12%
- Mo more than 0.0% and at most 0.20%
- V more than 0, 0% and at most 0.25%
- Nb more than 0.1% and at most 0.5%
- N at least 0.02 and at most 0.12%
- Ni at most 0.5%
- B at most 0.005%
- Cu 0.3% or less
- AI 0.035% or less
- Sn 0.035% or less
- the nioballoyed tool steel according to the invention has an optimized combination of machinability, hardness, corrosion resistance, weldability and toughness. It reaches hardness layers that are between 300 and 450 HB. Despite the relatively high sulfur content, it has good toughness for steels of the generic type, which meets the requirements that arise in practice.
- steels according to the invention are sulfur-alloyed, the proportion of each of which is less than 0.15% by mass.
- the steel preferably has at least 0.04% by mass, whereby good machinability can be reliably ensured. Yet Better machinability can be achieved when the other conditions imposed on the composition are taken into account if the steel according to the invention contains at least 0.07% by mass of sulfur.
- steel according to the invention has good toughness. This is achieved in that the steel together with the sulfur contains at least one of the elements calcium, manganese or cerium in amounts, the sum of which is more than 0.0002 but at most 0.015 mass%. These elements enable sulfides to be molded into the matrix of the steel and thus improve its toughness. This can be achieved with certainty, for example, if the steel according to the invention contains 0.001-0.009% by mass of calcium.
- the respective Nb content of the steel is designated with% Nb.
- the carbon and nitrogen present are largely bound to hard phases by the niobium element, so that the chromium contained in the matrix according to the invention with a content of less than 12% is fully available for the formation of corrosion-inhibiting passive layers.
- steel according to the invention has excellent corrosion resistance despite the relatively low chromium contents and high hardness.
- the embrittlement factor KG f fulfills the following condition, the negative influence of the elements which act on the grain boundaries and the associated risk of crack formation can be minimized in a targeted manner:
- the above-mentioned object is achieved by performing at least the following production steps:
- Casting the steel into a starting material such as blocks, slabs, continuous cast bars, thin slabs or cast strip,
- the diffusion annealing of the primary material carried out in the temperature range selected according to the invention compensates for the segregation-related segregations, so that a uniform distribution of the alloy elements contained is achieved.
- the structure and the material isotropy are influenced.
- An improved structure of the structure and a higher isotropy of the material can be achieved in that the hot deformation is carried out using a degree of deformation ⁇ of at least 1.5.
- hot forming can be carried out as forging or, for the production of larger dimensions, as hot rolling.
- Hot forming preferably takes place at temperatures of 850 ° C - 1100 ° C. In this temperature range, the material used according to the invention has a low yield stress and a high toughness, so that there is an optimal formability. Hot forming can thus be carried out quickly, inexpensively and with a high output.
- the workpiece produced according to the invention is preferably placed in air after the hot forming from the forming heat.
- the material When stored in air, the material is slowly and completely converted from the austenitic to the martensitic state.
- Such slow cooling sets the desired hardness of the material of up to 450 HB.
- thermal and transformation stresses are largely avoided, so that there are no distortions or stress cracks in the finished intermediate product.
- a hardness of the intermediate product produced can be produced which differs from the hardness present after being stored in air from the heat of deformation.
- this heat treatment can also achieve lower hardness values down to a lower limit of 300 HB.
- Diag. 2 the impact bending work determined for various steels plotted against the embrittlement factor KG f .
- Table 1 compares the alloys of steels A, B, C according to the invention with the compositions of four comparative steels D, E, F, G lying outside the invention.
- Table 2 also shows the Brinell hardness values belonging to steels A to G as well as the hardness (H f ), sweat (S f ) and embrittlement factors (KG f ).
- the test was carried out at room temperature. Like the one in Diag. 2 summarized values for the impact bending work (mean values from 3 tested individual samples) show, with increasing embrittlement factor KG f a significant decrease in the measured impact bending work can be determined.
- the steels A, B and C according to the invention have the desired high level of toughness with values well above 200 J, while only values between 50 and 150 J could be measured for the steels D, E, F and G with increasing embrittlement factor, their toughness was therefore significantly lower.
- Comparable has been found in connection with the value to be observed for the weldability factor S f of steels according to the invention.
- the comparative steels, the welding factor S f of which are above the limit value provided according to the invention, have a significantly poorer welding behavior than the steels according to the invention. This is particularly evident in the occurrence of welding cracks, to avoid which, in the case of the steels not according to the invention, complex preheating and post-treatment are necessary.
- the examples show that the inventive limitation of the contents of elements with a grain-boundary effect, such as Cu, Sn, As, AI, P and N, in the case of steels A, B, C keeps the respective embrittlement factor KG f low and, consequently, one for steels good toughness has been achieved.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Articles (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10103290 | 2001-01-25 | ||
DE10103290A DE10103290A1 (en) | 2001-01-25 | 2001-01-25 | Steel and process for producing an intermediate |
PCT/EP2002/000746 WO2002059389A2 (en) | 2001-01-25 | 2002-01-25 | Steel and method for producing an intermediate product |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1358359A2 true EP1358359A2 (en) | 2003-11-05 |
EP1358359B1 EP1358359B1 (en) | 2004-06-23 |
Family
ID=7671694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02719725A Expired - Lifetime EP1358359B1 (en) | 2001-01-25 | 2002-01-25 | Steel and method for producing an intermediate product |
Country Status (12)
Country | Link |
---|---|
US (1) | US20040050459A1 (en) |
EP (1) | EP1358359B1 (en) |
JP (1) | JP3943499B2 (en) |
AT (1) | ATE269911T1 (en) |
AU (1) | AU2002250853B2 (en) |
CA (1) | CA2424074C (en) |
DE (2) | DE10103290A1 (en) |
DK (1) | DK1358359T3 (en) |
ES (1) | ES2223037T3 (en) |
PT (1) | PT1358359E (en) |
TR (1) | TR200402213T4 (en) |
WO (1) | WO2002059389A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2872825B1 (en) * | 2004-07-12 | 2007-04-27 | Industeel Creusot | MARTENSITIC STAINLESS STEEL FOR MOLDS AND CARCASES OF INJECTION MOLDS |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2287521A1 (en) * | 1974-10-11 | 1976-05-07 | Ugine Aciers | DECOLLETAGE STEEL |
DE3018537A1 (en) * | 1979-05-17 | 1980-11-27 | Daido Steel Co Ltd | CONTROLLED INCLUDING AUTOMATIC STEEL AND METHOD FOR THE PRODUCTION THEREOF |
US4294613A (en) * | 1979-07-03 | 1981-10-13 | Henrik Giflo | Acid resistant, high-strength steel suitable for polishing |
JPS59153831A (en) * | 1983-02-23 | 1984-09-01 | Sumitomo Metal Ind Ltd | Manufacture of heat resistant ferritic stainless steel plate |
JPH01215489A (en) * | 1988-02-19 | 1989-08-29 | Sumitomo Metal Ind Ltd | Welding material for high cr ferrite steel |
JP3068216B2 (en) * | 1990-12-28 | 2000-07-24 | 東北特殊鋼株式会社 | High cold forging electromagnetic stainless steel |
US5362337A (en) * | 1993-09-28 | 1994-11-08 | Crs Holdings, Inc. | Free-machining martensitic stainless steel |
US6090230A (en) * | 1996-06-05 | 2000-07-18 | Sumitomo Metal Industries, Ltd. | Method of cooling a steel pipe |
JP2000144334A (en) * | 1998-11-06 | 2000-05-26 | Daido Steel Co Ltd | Steel for aluminum diecasting die excellent in erosion resistance |
-
2001
- 2001-01-25 DE DE10103290A patent/DE10103290A1/en not_active Withdrawn
-
2002
- 2002-01-25 JP JP2002559870A patent/JP3943499B2/en not_active Expired - Fee Related
- 2002-01-25 WO PCT/EP2002/000746 patent/WO2002059389A2/en active IP Right Grant
- 2002-01-25 ES ES02719725T patent/ES2223037T3/en not_active Expired - Lifetime
- 2002-01-25 AT AT02719725T patent/ATE269911T1/en active
- 2002-01-25 EP EP02719725A patent/EP1358359B1/en not_active Expired - Lifetime
- 2002-01-25 AU AU2002250853A patent/AU2002250853B2/en not_active Ceased
- 2002-01-25 US US10/470,139 patent/US20040050459A1/en not_active Abandoned
- 2002-01-25 DE DE50200545T patent/DE50200545D1/en not_active Expired - Lifetime
- 2002-01-25 DK DK02719725T patent/DK1358359T3/en active
- 2002-01-25 TR TR2004/02213T patent/TR200402213T4/en unknown
- 2002-01-25 PT PT02719725T patent/PT1358359E/en unknown
- 2002-01-25 CA CA2424074A patent/CA2424074C/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO02059389A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2002059389A3 (en) | 2002-09-19 |
PT1358359E (en) | 2004-11-30 |
AU2002250853B2 (en) | 2006-08-03 |
US20040050459A1 (en) | 2004-03-18 |
TR200402213T4 (en) | 2004-10-21 |
DK1358359T3 (en) | 2004-10-18 |
ES2223037T3 (en) | 2005-02-16 |
CA2424074C (en) | 2011-03-15 |
WO2002059389A2 (en) | 2002-08-01 |
DE10103290A1 (en) | 2002-08-22 |
DE50200545D1 (en) | 2004-07-29 |
JP3943499B2 (en) | 2007-07-11 |
EP1358359B1 (en) | 2004-06-23 |
JP2004520487A (en) | 2004-07-08 |
ATE269911T1 (en) | 2004-07-15 |
CA2424074A1 (en) | 2003-03-28 |
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