US20070023108A1 - Use of martensitic precipitation hardening stainless steel - Google Patents
Use of martensitic precipitation hardening stainless steel Download PDFInfo
- Publication number
- US20070023108A1 US20070023108A1 US10/547,793 US54779306A US2007023108A1 US 20070023108 A1 US20070023108 A1 US 20070023108A1 US 54779306 A US54779306 A US 54779306A US 2007023108 A1 US2007023108 A1 US 2007023108A1
- Authority
- US
- United States
- Prior art keywords
- mass
- steel
- products
- implants
- osteosynthesis
- 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.)
- Abandoned
Links
- 229910000734 martensite Inorganic materials 0.000 title claims abstract description 11
- 229910001220 stainless steel Inorganic materials 0.000 title abstract description 16
- 239000010935 stainless steel Substances 0.000 title abstract description 7
- 238000004881 precipitation hardening Methods 0.000 title abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000007943 implant Substances 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000004411 aluminium Substances 0.000 claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000011651 chromium Substances 0.000 claims abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 5
- 239000010936 titanium Substances 0.000 claims abstract description 5
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 4
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 239000011733 molybdenum Substances 0.000 claims abstract description 4
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 4
- 239000010955 niobium Substances 0.000 claims abstract description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052796 boron Inorganic materials 0.000 claims abstract description 3
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 229910052742 iron Inorganic materials 0.000 claims abstract description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 3
- 239000011574 phosphorus Substances 0.000 claims abstract description 3
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 238000001556 precipitation Methods 0.000 claims description 10
- 239000011572 manganese Substances 0.000 claims description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005864 Sulphur Substances 0.000 claims description 2
- JPNWDVUTVSTKMV-UHFFFAOYSA-N cobalt tungsten Chemical compound [Co].[W] JPNWDVUTVSTKMV-UHFFFAOYSA-N 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 238000001356 surgical procedure Methods 0.000 abstract description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 29
- 239000000463 material Substances 0.000 description 15
- 230000007797 corrosion Effects 0.000 description 12
- 238000005260 corrosion Methods 0.000 description 12
- 210000000988 bone and bone Anatomy 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000007850 degeneration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 238000002316 cosmetic surgery Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/04—Metals or alloys
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/04—Metals or alloys
- A61L27/047—Other specific metals or alloys not covered by A61L27/042 - A61L27/045 or A61L27/06
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/02—Inorganic materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/02—Inorganic materials
- A61L31/022—Metals or alloys
Definitions
- WO 01/14601 A1 a method is presented for manufacturing medical or dental instruments through a series of process steps including precipitation hardening, tempering, quenching and hardening, the result of which is a homogenous hardness of at least 450 HV.
- osteosynthesis products are often used to join bones following fractures or following operative sawing of the bones, i.e. they are implanted. These implants then normally remain until complete healing of the bone and furthermore inside the body of the patient.
- Known osteosynthesis products available on the market are manufactured from so-called stainless steel, such as the abovementioned steel grades. Since for such osteosynthesis products, in addition to the mechanical and corrosion properties, high demands on the biocompatibility are made, there is only a limited choice of materials available for the manufacture of these products (not all the materials shown in Table 1 below meet this condition). It has been found that the fracture resistance of the known implants, in particular after long periods of indwelling, is poor.
- inventively manufactured tools and osteosynthesis products combine hardness, high corrosion resistance, good biocompatibility and exceptional fracture resistance in the manufactured products. Even when bent the products remain secure against fracture and can, as for example in implants for plastic surgery, be bent a number of times, without losing their exceptional material properties. Furthermore, the inventively used steel grades are easy to machine and easy to mill in the hardened state, which is of benefit in the manufacture of the products. A further advantage of the application of the inventively used steel for the manufacture of implants and osteosynthesis products for application and remaining in or on the human body is the relatively low hardening temperature in the region of 425 to 525° C. allowing considerable energy cost savings during manufacture.
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Inorganic Chemistry (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Medicinal Chemistry (AREA)
- Dermatology (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- Vascular Medicine (AREA)
- Materials For Medical Uses (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Steel (AREA)
- Adornments (AREA)
- Prostheses (AREA)
Abstract
The invention relates to the use of a chrome-nickel martensitic precipitation hardening stainless steel having the following composition: 10-14 mass % chromium, 7-11 mass % nickel, 0.5-6 mass % molybdenum, 0.5-4 mass % copper, 0.05-0.55 mass % aluminium, 0.4-1.4 mass % titanium, up to 0.3 mass % carbon+nitrogen, less than 0.05 mass % sulfur, less than 0.05 mass % phosphorus, up to 0.5 mass % manganese, up to 0.5 mass % silicium, up to 0.2 mass % tantalum, niobium, vanadium and tungsten, respectively, possibly 0.9 mass % cobalt, possibly 0.0001-0.1 mass % boron, the rest being iron and ordinary impurities. Said steel is used for producing surgery implants and osteosynthesis products which are pointwisely or long-lastingly used outside and inside a body.
Description
- The invention concerns the novel use of precipitation hardenable, martensitic, stainless steels, in particular their use in medical applications, such as implants and osteosynthesis products for application and remaining in or on the human body.
- Precipitation hardenable, martensitic, stainless steels are known from WO 93/07303. This describes a composition of a stainless steel, which simultaneously combines very high resistance with good ductility. This steel is described as being particularly suitable for the manufacture of injection cannulae, dental instruments and medical instruments.
- In WO 01/14601 A1 a method is presented for manufacturing medical or dental instruments through a series of process steps including precipitation hardening, tempering, quenching and hardening, the result of which is a homogenous hardness of at least 450 HV.
- It is, by way of example, stated that a precipitation hardenable, martensitic, stainless steel can be used for manufacturing medical instruments with the process specified there.
- For a specific application of a steel in medical applications such as implants and osteosynthesis products there is a number of boundary conditions that must be met.
- Depending on the purpose of their application implants and osteosynthesis products like plates, and fixing elements, such as screws and nails, have very unfavourable geometries, i.e. an unfavourable ratio of length to thickness and/or diameter for example. Because of their unfavourable geometry such implants and osteosynthesis products are very sensitive to the frequent light or heavy bending loads that are applied in practical use. Even the slightest, hardly noticeable bending of implants and/or osteosynthesis products can lead to them breaking the next time a load is applied. Because of the often very high bending loads in practice this occasionally leads to the implants and osteosynthesis products breaking. This means that not only do they have a short lifetime, but there is also a risk of injury to the patient.
- There is thus an urgent need for implants and osteosynthesis products that have a high hardness, are resistant to corrosion and at the same time compared to known implants and osteosynthesis products are fracture-proof. Apart from hardness and security against fracture, simultaneous resistance to corrosion and biocompatibility are of decisive importance. Examples of corrosive media in use are blood and other body fluids. If, therefore, such implants and osteosynthesis products are damaged by corrosion or attacked, there is a danger that patients will be contaminated with the corrosion residues and develop dangerous postoperative complications.
- Another typical application is in surgery. Here metal plates, nails and screws, so-called osteosynthesis products, are often used to join bones following fractures or following operative sawing of the bones, i.e. they are implanted. These implants then normally remain until complete healing of the bone and furthermore inside the body of the patient. Known osteosynthesis products available on the market are manufactured from so-called stainless steel, such as the abovementioned steel grades. Since for such osteosynthesis products, in addition to the mechanical and corrosion properties, high demands on the biocompatibility are made, there is only a limited choice of materials available for the manufacture of these products (not all the materials shown in Table 1 below meet this condition). It has been found that the fracture resistance of the known implants, in particular after long periods of indwelling, is poor. For this reason patients are urged, initially, to be careful and only apply weak loads to bones with such osteosynthesis products after the operation. In order to prevent degeneration of the underutilised musculature, it is necessary as soon as possible with the help of the hospital exercises to slow down the degeneration, although it cannot be prevented. If the patient does not take the required care with the bone operated on or due to inappropriate movements, bending loads may be applied to the osteosynthesis products or implants and finally they may break. Not only does this result in the joining together of the bone fragments intended by the application of the implant being lost, the often sharp-edged implant can cause considerable injury to the patient. In any case, in the event of the implant fracturing a further operation on the patient to rectify the damage is necessary. Because of the low resistance of the products there is an additional danger of screwed plates coming loose through micro-oscillations thus prolonging healing of the bone.
- Thus there is an urgent need for stable, corrosion-resistant and biocompatible osteosynthesis products or implants which simultaneously combine high strength values with good ductility properties.
- Currently a range of well known and well researched types of alloys are used for forming and manufacturing such tools and implants. These alloys include martensitic stainless steels, austenitic stainless steels, and precipitation hardenable stainless steels. Each of these known alloys has a number of good material properties, such as corrosion resistance, strength, malleability and/or ductility, but each alloy also has its disadvantages and is unable to meet certain product requirements. Complex problems and disadvantages are known from the practical use of the rotary tools, surgical implants, surgical osteosynthesis products, such as surgical plates, screws and nails, available on the market today.
- The table below shows the compositions of a number of frequently used steels.
TABLE 1 Compositions of various known steels in % by weight; remainder iron Alloy C Si Mn S Cr Ni Mo Cu Ti N P AISI 420 0.36 0.15 0.30 <0.020 13.5 <0.3 AISI 420 F 0.22 0.58 1.58 0.175 13.0 0.8 1.2 AISI 304 0.060 0.66 1.22 0.002 18.6 8.6 0.2 ISO 5832-1-D <0.03 <1.0 <2.0 <0.01 17.5 14 2.8 <0.5 <0.1 <0.025 ISO 5832-9 0.08 <0.75 3.6 <0.01 20.5 10.0 2.5 <0.25 0.4 <0.025 Carpenter 455 0.006 0.07 0.03 0.004 11.4 8.3 <0.1 2.2 1.2 C455 (V) 0.004 0.04 0.15 0.002 11.8 9.1 <0.1 2.0 1.6 1.4108 0.31 0.68 0.41 0.002 15.54 0.16 0.97 0.41 0.017 1.4112 0.85-0.95 <1.0 <1.0 0.030 17.0-19.0 0.9-1.3 0.040 - Martensitic, stainless steels, such as the AISI 420 grades, may offer a high strength, but this is not combined with ductility. Austenitic, stainless steels, such as the AISI 300 series, can offer good corrosion resistance combined with high strength and for some applications acceptable ductility, but in order to achieve the high strength, a severe cold reduction is necessary, and this means that even the semi-finished product must have a very high strength, which in turn results in poor malleability. The group of precipitation hardenable, stainless steels, contains numerous, different grades and all with different properties. They do, however, have a number of things in common: for example, the majority of them are smelted in a one-way or more usually in a two-way process in a vacuum, in which the second stage involves smelting under a vacuum. Apart from this a large quantity of precipitation-forming elements, such as aluminium, niobium, tantalum and titanium, is necessary and often as combinations of these elements. Here the term “large” means>1.5%. A large quantity favours strength but reduces ductility and malleability. One grade can be found in U.S. Pat. No. 3,408,871. This grade offers acceptable ductility of the finished product, but in association with a strength of only about 2,000 N/mm2. It can also have disadvantages during the manufacture of semi-finished products. The steel, for example, is susceptible to cracking in the annealed state.
- One aspect of the invention concerns the ( . . . ) use of precipitation hardenable, martensitic, stainless steels, with the composition mentioned below, for the manufacture of surgical implants, surgical osteosynthesis products, surgical plates, screws and nails for application and remaining in or on the human body. One surprising effect of the invention that has been noticed is that precipitation hardenable, martensitic, stainless steel is an advantage in those applications where the combination of high fracture and bending resistance with hardness and corrosion properties is of decisive importance.
- A further surprising effect of the invention that has been noticed concerns the advantageous combination of good biological compatibility of the steel described below with good corrosion properties, high ductility, good malleability and exceptionally high strength of approximately 2,500 to 3,000 N/mm2. This combination allows the advantageous use of this steel in medical applications, in which the material remains in the patient's body for a relatively short or long period.
- The precipitation hardenable, martensitic, stainless steel described in the invention must have the composition described below:
Chromium 10 to 14 Nickel 7 to 11 Molybdenum 0.5 to 6 Copper 0.5 to 4 Aluminium 0.05 to 0.55 Titanium 0.4 to 1.4 Carbon + nitrogen up to 0.3 Sulphur less than 0.05 Phosphorus less than 0.05 Manganese up to 0.5 Silicon up to 0.5 Tantalum, niobium, vanadium up to 0.2 each and tungsten Cobalt up to 9.0 if applicable Boron 0.0001 to 0.1 if applicable -
- with the remainder comprising iron and the normal impurities.
Examples to Describe the Inventive Properties
- with the remainder comprising iron and the normal impurities.
- The tensile strength, elongation at rupture and hardness were tested on hardened solid material pieces of the same geometry in the inventively used steel and two of the steels currently used for rotary tools.
- The inventive steel tested had a composition in accordance with the abovementioned preferred embodiment of 12.0% by weight chromium, 9.1% by weight nickel, 4.0% by weight molybdenum, 2.0% by weight copper, 0.9% by weight titanium, 0.35% by weight aluminium, <0.12% by weight carbon and <0.012% by weight nitrogen. The steels used for comparison were grades 1.4112 and 1.4108, the compositions of which are given above in Table 1. The specimens were solid rods with a circular section and a diameter of 4.5 mm. All the specimens tested had been precipitation hardened. The hardening of the inventive steel took place at 475° C. for 4 hours. The hardening of grades 1.4112 and 1.4108 took place in accordance with the hardening methods prescribed for these steels. The hardening of grades 1.4112 and 1.4108 took place at 1,000° C. for 40-60 minutes in a vacuum. Then both grades were cooled in nitrogen to 50° C. Material 1.4108 was left for a further 2 hours at 160° C. The hardening of each of the materials was performed in such a way that for all tested materials a comparable material hardness was achieved. Four specimens of each material were tested. The results are summarised in the following Table 2.
TABLE 2 Test results, tensile test in accordance with DIN EN 10002-1 Elongation Tensile strength at rupture Rockwell Material [MPa] [%] C hardness Inventive A 1935 9.1 52/53 Inventive A 1938 9.1 52/53 Inventive C 1941 9.1 52/53 Inventive D 1946 9.1 52/53 1.4112 1989 <2 54/55 1.4112 1981 <2 54/55 1.4112 1987 <2 54/55 1.4112 2000 <2 54/55 1.4108 1323 <2 54/55 1.4108 1263 <2 54/55 1.4108 1153 <2 54/55 1.4108 1312 <2 54/55 - An investigation of the fracture points of the abovementioned materials tested clearly shows that the inventive steel has an extremely tough fracture behaviour. The fracture surfaces had the form of a so-called “funnel fracture”. In comparison the materials 1.4112 and 1.4108 demonstrated so-called fissures with a brittle fracture content of almost 100%. The good elongation at rupture behaviour of the specimens in the inventive steel is accompanied by high pliability without the material breaking. The specimens can be bent many times without breaking. In comparison the specimens in materials 1.4112 and 1.4108 broke with the first bending.
- Surprisingly, it transpires that the use of the inventively used steel types for the manufacture of implants and osteosynthesis products such as surgical plates, nails and screws for application and remaining in or on the human body, has particular advantages because of the exceptional elongation at rupture behaviour of the steel grade compared with the steels used previously. With the previously used steels the hardness and corrosion resistance, as well as the biocompatibility, depending on the application, were, in particular, the top priority and with regard to the rupture resistance a compromise was accepted. With the inventive use of the present steel for the manufacture of rotary tools and osteosynthesis products the disadvantages of the fracture behaviour of the products previously available on the market could now be overcome. The inventively manufactured tools and osteosynthesis products combine hardness, high corrosion resistance, good biocompatibility and exceptional fracture resistance in the manufactured products. Even when bent the products remain secure against fracture and can, as for example in implants for plastic surgery, be bent a number of times, without losing their exceptional material properties. Furthermore, the inventively used steel grades are easy to machine and easy to mill in the hardened state, which is of benefit in the manufacture of the products. A further advantage of the application of the inventively used steel for the manufacture of implants and osteosynthesis products for application and remaining in or on the human body is the relatively low hardening temperature in the region of 425 to 525° C. allowing considerable energy cost savings during manufacture.
Claims (1)
1. Use of a precipitation hardenable, martensitic, stainless chrome nickel steel with the following composition (in % by weight):
with the remainder comprising iron and the normal impurities, for the manufacture of surgical implants and osteosynthesis products for application and remaining in or on the human body.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0300644-2 | 2003-03-07 | ||
SE0300644A SE522813C2 (en) | 2003-03-07 | 2003-03-07 | Use of a precipitable, martensitic stainless steel for the manufacture of implants and osteosynthetic products |
PCT/EP2004/050265 WO2004078224A1 (en) | 2003-03-07 | 2004-03-05 | Use of martensitic precipitation hardening stainless steel |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070023108A1 true US20070023108A1 (en) | 2007-02-01 |
Family
ID=20290624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/547,793 Abandoned US20070023108A1 (en) | 2003-03-07 | 2004-03-05 | Use of martensitic precipitation hardening stainless steel |
Country Status (9)
Country | Link |
---|---|
US (1) | US20070023108A1 (en) |
EP (1) | EP1601389B1 (en) |
JP (1) | JP2006523482A (en) |
KR (1) | KR20060015473A (en) |
CN (1) | CN1758928A (en) |
AT (1) | ATE330645T1 (en) |
DE (1) | DE502004000839D1 (en) |
SE (1) | SE522813C2 (en) |
WO (1) | WO2004078224A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090071313A1 (en) * | 2005-12-07 | 2009-03-19 | Sandvik Intellectual Property Ab | Music string |
WO2014089418A1 (en) * | 2012-12-06 | 2014-06-12 | Crs Holdings, Inc. | High streng preciptation hardenable stainless steel |
US9181597B1 (en) | 2013-04-23 | 2015-11-10 | U.S. Department Of Energy | Creep resistant high temperature martensitic steel |
US9556503B1 (en) | 2013-04-23 | 2017-01-31 | U.S. Department Of Energy | Creep resistant high temperature martensitic steel |
US9873930B2 (en) | 2010-11-09 | 2018-01-23 | Mitsubishi Hitachi Power Systems, Ltd. | Precipitation hardening martensitic stainless steel and steam turbine component made thereof |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE528454C3 (en) * | 2004-12-23 | 2007-01-09 | Sandvik Intellectual Property | Extractable curable martensitic stainless steel including titanium sulfide |
JP5764503B2 (en) * | 2012-01-19 | 2015-08-19 | 三菱日立パワーシステムズ株式会社 | Precipitation hardening type martensitic stainless steel, steam turbine long blade, turbine rotor and steam turbine using the same |
CN102877000A (en) * | 2012-09-27 | 2013-01-16 | 无锡宏昌五金制造有限公司 | Stainless steel alloy material |
CN104404332A (en) * | 2014-11-04 | 2015-03-11 | 无锡贺邦金属制品有限公司 | Bone fixation screw use alloy material with anti-allergy function |
KR101703255B1 (en) * | 2015-07-29 | 2017-02-06 | 대구보건대학교산학협력단 | Cobalt chromium alloy metal block for dental CAD/CAM and its manufacturing method |
CN107326300A (en) * | 2017-06-20 | 2017-11-07 | 上海大学兴化特种不锈钢研究院 | A kind of anti-corrosion antibacterial medical surgical device martensitic stain less steel and preparation method thereof |
JP6735038B2 (en) * | 2018-01-29 | 2020-08-05 | 日立金属株式会社 | Martensitic stainless steel thin plate and its manufacturing method, and thin part manufacturing method |
CN110358983A (en) * | 2019-07-04 | 2019-10-22 | 中国科学院金属研究所 | A kind of precipitation hardening of martensitic stainless steel and preparation method thereof |
CN110306122B (en) * | 2019-08-06 | 2021-05-11 | 鄱阳县黑金刚钓具有限责任公司 | Novel high-strength material fishhook |
CN112095055B (en) * | 2020-08-31 | 2021-04-09 | 北京科技大学 | High-temperature high-strength low-carbon martensite heat-strength steel and preparation method thereof |
CN113046654B (en) * | 2021-03-11 | 2023-12-08 | 哈尔滨工程大学 | High-plasticity high-strength high-corrosion-resistance stainless steel and preparation method thereof |
CN113174533A (en) * | 2021-04-13 | 2021-07-27 | 靖江市新万国标准件制造有限公司 | Corrosion-resistant and fatigue-resistant alloy steel for bolt and casting method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5512237A (en) * | 1991-10-07 | 1996-04-30 | Sandvik Ab | Precipitation hardenable martensitic stainless steel |
US6238455B1 (en) * | 1999-10-22 | 2001-05-29 | Crs Holdings, Inc. | High-strength, titanium-bearing, powder metallurgy stainless steel article with enhanced machinability |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3918101A (en) * | 1973-10-02 | 1975-11-11 | Jean Lagrange | Total knee-joint prosthesis |
RU2122370C1 (en) * | 1997-03-17 | 1998-11-27 | Уральский научно-исследовательский институт травматологии и ортопедии | Metal construction for osteosynthesis of bones, for example, needle |
RU2143248C1 (en) * | 1999-01-05 | 1999-12-27 | Плоткин Геннадий Львович | Supporting assembly of hip joint endoprosthesis |
SE520169C2 (en) * | 1999-08-23 | 2003-06-03 | Sandvik Ab | Method for the manufacture of steel products of precipitated hardened martensitic steel, and the use of these steel products |
US20030018380A1 (en) * | 2000-07-07 | 2003-01-23 | Craig Charles H. | Platinum enhanced alloy and intravascular or implantable medical devices manufactured therefrom |
US20030077200A1 (en) * | 2000-07-07 | 2003-04-24 | Craig Charles H. | Enhanced radiopaque alloy stent |
-
2003
- 2003-03-07 SE SE0300644A patent/SE522813C2/en not_active IP Right Cessation
-
2004
- 2004-03-05 AT AT04717646T patent/ATE330645T1/en not_active IP Right Cessation
- 2004-03-05 KR KR1020057016626A patent/KR20060015473A/en not_active Application Discontinuation
- 2004-03-05 US US10/547,793 patent/US20070023108A1/en not_active Abandoned
- 2004-03-05 CN CNA2004800062483A patent/CN1758928A/en active Pending
- 2004-03-05 WO PCT/EP2004/050265 patent/WO2004078224A1/en active Application Filing
- 2004-03-05 EP EP04717646A patent/EP1601389B1/en not_active Expired - Lifetime
- 2004-03-05 JP JP2006505448A patent/JP2006523482A/en not_active Withdrawn
- 2004-03-05 DE DE502004000839T patent/DE502004000839D1/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5512237A (en) * | 1991-10-07 | 1996-04-30 | Sandvik Ab | Precipitation hardenable martensitic stainless steel |
US6238455B1 (en) * | 1999-10-22 | 2001-05-29 | Crs Holdings, Inc. | High-strength, titanium-bearing, powder metallurgy stainless steel article with enhanced machinability |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090071313A1 (en) * | 2005-12-07 | 2009-03-19 | Sandvik Intellectual Property Ab | Music string |
US7777108B2 (en) * | 2005-12-07 | 2010-08-17 | Sandvik Intellectual Property Ab | Music string |
US9873930B2 (en) | 2010-11-09 | 2018-01-23 | Mitsubishi Hitachi Power Systems, Ltd. | Precipitation hardening martensitic stainless steel and steam turbine component made thereof |
WO2014089418A1 (en) * | 2012-12-06 | 2014-06-12 | Crs Holdings, Inc. | High streng preciptation hardenable stainless steel |
US9181597B1 (en) | 2013-04-23 | 2015-11-10 | U.S. Department Of Energy | Creep resistant high temperature martensitic steel |
US9556503B1 (en) | 2013-04-23 | 2017-01-31 | U.S. Department Of Energy | Creep resistant high temperature martensitic steel |
Also Published As
Publication number | Publication date |
---|---|
EP1601389A1 (en) | 2005-12-07 |
SE0300644L (en) | 2004-03-09 |
JP2006523482A (en) | 2006-10-19 |
EP1601389B1 (en) | 2006-06-21 |
ATE330645T1 (en) | 2006-07-15 |
DE502004000839D1 (en) | 2006-08-03 |
KR20060015473A (en) | 2006-02-17 |
WO2004078224A1 (en) | 2004-09-16 |
SE0300644D0 (en) | 2003-03-07 |
SE522813C2 (en) | 2004-03-09 |
CN1758928A (en) | 2006-04-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20070023108A1 (en) | Use of martensitic precipitation hardening stainless steel | |
EP2550032B1 (en) | Implant made of a biodegradable magnesium alloy | |
EP2047871B1 (en) | Cobalt alloy implant having a hard surface region | |
US6258182B1 (en) | Pseudoelastic β titanium alloy and uses therefor | |
EP4079341A2 (en) | Degradable zinc base alloy implant material and preparation method and use thereof | |
KR102246887B1 (en) | Magnesium-aluminum-zinc alloy, method for the production thereof and use thereof | |
JP5696208B2 (en) | Heavy rare earth element-containing magnesium alloy | |
CN101003873A (en) | Beta type Ti Nb Zr alloy with low modulus of elasticity, preparation method and application | |
US20070000576A1 (en) | Use of a non-corrosive, martensitically hardening steel | |
CN107630151A (en) | A kind of new type beta type titanium alloy with antibacterial and promotion knitting function | |
EP2021041B1 (en) | Bone implant made of a titanium alloy, and method for the production thereof | |
EP2676685A1 (en) | Stent composed of an iron alloy | |
US20090088845A1 (en) | Titanium tantalum oxygen alloys for implantable medical devices | |
US11351290B1 (en) | Absorbable high-strength zinc alloy for medical implants | |
EP4133117B1 (en) | Bioresorbable fe-mn-si-x alloys for medical implants | |
Zardiackas et al. | Comparison of Corrosion Fatigue of BioDur® 108 to 316L SS And 22Cr-13Ni-5Mn SS | |
EP4107303B1 (en) | Use of bioresorbable pseudoelastic fe-mn-x-y alloys for medical implants | |
Al-Shanableh et al. | Failure investigation of a prematurely fractured stainless steel bone fixation implant | |
US10767244B2 (en) | Titanium alloy | |
Yoneyama et al. | Bending Properties of Co–Ni–Cr–Mo Alloy Wire for Orthodontic Application | |
Cigada et al. | Characterization of a high performance duplex stainless steel for orthopedic applications | |
CN113304326A (en) | Absorbable high-strength zinc alloy implant material | |
JPH08164195A (en) | Fastening titanium wire for living body and its production | |
JPH0622575B2 (en) | Bioremediation base material |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SANDVIK INTELLECTUAL PROPERTY AB, SWEDEN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BLANKE, BERND;GOKEN, MATTHIAS;REEL/FRAME:018701/0310;SIGNING DATES FROM 20061021 TO 20061023 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |