CN112962029B - Low-hardness and easy-to-process stainless steel material for zipper buttons and preparation method thereof - Google Patents
Low-hardness and easy-to-process stainless steel material for zipper buttons and preparation method thereof Download PDFInfo
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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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- 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
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- 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
- C21D1/26—Methods of annealing
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- 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
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- 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
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
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- 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
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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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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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
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
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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
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
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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
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
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- 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
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Abstract
The invention discloses a low-hardness and easy-processing stainless steel material for a zipper button and a preparation method thereof, wherein the stainless steel comprises the following components in percentage by weight: c: 0.01-0.05%; si: 0.1-0.5%; mn: 13-18%; cr: 15-25%; n: 0.5-0.95%; cu: 1.0-1.8%; b: 0.001-0.006%; the balance being Fe. The stainless steel prepared by the invention is completely austenitic and has stable non-magnetism, the stainless steel does not contain Ni, N, Mn replaces Ni to be used as a main element for forming austenite, so that a stable austenite structure is formed, and the cost of raw materials is greatly reduced; by combining the forging and cold rolling processes, the crystal grains can be obviously refined, the work hardening and the residual stress are eliminated through the solid solution treatment, the plasticity and the toughness of the alloy are improved, and the singularity of an austenite structure is ensured through the quenching treatment. The stainless steel has excellent mechanical property and machining property, and can be widely applied to the industry of clothes zippers and buttons.
Description
Technical Field
The invention relates to the field of metal materials, in particular to a low-hardness and easy-processing stainless steel material for a zipper button and a preparation method thereof.
Background
The common parts such as the zipper button and the like are made of 304 stainless steel or 316 stainless steel, which belong to austenitic stainless steel, and the austenitic stainless steel is non-magnetic or weak-magnetic, so that when the common parts are used as the material of the zipper button, demagnetization is not needed, the production cost can be reduced, and the problem of needle breakage or needle stop in the sewing process can be avoided. However, although austenitic stainless steel is metastable and has a single austenitic structure after being annealed, and has no magnetism, the austenitic structure is transformed into martensite to have magnetism in a portion subjected to cold working and deformation (such as stamping, drawing, rolling, and the like), and the strength of the magnetism varies depending on the magnitude of the deformation.
Ni element is a main component for forming austenite, so that Ni element is a necessary choice for a plurality of stainless steel materials, but the Ni element is expensive, so that the production cost is high.
According to the related research, the austenite forming ability is Ni% + 30C% + 30N% +0.5 Mn% +0.25 Cu%, and it can be seen from this formula that the austenite forming ability of C element and N element is 30 times that of Ni element, but C element should not be too much, otherwise the corrosion resistance will be deteriorated, so that Ni element can be replaced by N element and Mn element, thereby enhancing the austenite forming ability of stainless steel, improving the stability of austenite structure, and avoiding the formation of magnetic phase due to martensite transformation of austenite stainless steel in the process deformation.
Generally, stainless steel has a work hardening phenomenon after being processed by various processes in the preparation process, so that the machining performance is poor, which is very unfavorable for the application of zipper buttons, and the phenomenon of cracking and the like can be caused in the deformation process.
Disclosure of Invention
In order to solve the problems of the prior art, the invention aims to overcome the defects and provide a low-hardness and easy-to-process stainless steel material for a zipper button and a preparation method thereof.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a low-hardness and easy-processing stainless steel material for a zipper button comprises the following components in percentage by weight: c: 0.01-0.05%; si: 0.1-0.5%; mn: 13-18%; cr: 15-25%; n: 0.5-0.95%; cu: 1.0-1.8%; b: 0.001-0.006%; the balance being Fe.
As a preferred scheme, the stainless steel comprises the following components in percentage by weight: c: 0.02-0.04%; si: 0.15-0.4%; mn: 12.5-16%; cr: 16-23%; n: 0.6-0.85%; cu: 1.1-1.5%; b: 0.002-0.006%; the balance being Fe.
A preparation method of a low-hardness and easy-processing stainless steel material for a zipper button comprises the following steps:
(1) weighing the components according to the weight ratio, respectively placing the weighed metal components in a beaker filled with alcohol for ultrasonic cleaning for 10min, and drying by using a blower with cold air;
(2) smelting the prepared raw materials by a vacuum smelting furnace, and repeatedly smelting for 8-15 times to obtain an ingot;
(3) forging the ingot obtained by smelting;
(4) annealing the forged workpiece;
(5) cold rolling the annealed workpiece with different deformation amounts to obtain a rolled workpiece;
(6) and carrying out solution treatment on the rolled workpiece, and carrying out quenching treatment after heat preservation.
As a preferable scheme, the ingot needs to be heated to 1200-1230 ℃ and kept for 1-3 h before forging.
Preferably, the forging temperature is not lower than 1050 ℃.
As a preferable scheme, the temperature of the annealing treatment is 1050-.
As a preferable scheme, the cold rolling condition is 25-30 ℃ at room temperature, and the thickness deformation amount of each rolling is 10%.
As a preferable scheme, the temperature range of the solution treatment is 1100-1150 ℃, and the time of the solution treatment is 2-6 h.
In a preferred embodiment, the annealing treatment and the solution treatment are performed in a vacuum or a protective gas environment, and the protective gas is argon or helium.
In a preferred embodiment, the quenching medium is water or oil.
Has the advantages that:
(1) the stainless steel of the invention is completely austenitic, does not generate martensite phase transformation in the process of processing deformation, and does not generate magnetic phase.
(2) The stainless steel does not contain Ni element, adopts C, N, Mn and Cu element as main elements for stabilizing austenite structure, and greatly reduces the cost of raw materials.
(3) The forging and cold rolling process is adopted to improve the mechanical processing performance of the stainless steel, the solution treatment is adopted to eliminate the work hardening, and the quenching treatment is adopted to ensure the unity of the austenite structure.
(4) The stainless steel has the characteristics of low hardness, easiness in processing, no magnetism and the like, and is very suitable for being used in the zipper and button industry.
Detailed Description
The invention will be further understood by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. To the extent that a definition of a particular term disclosed in the prior art is inconsistent with any definition provided in the present disclosure, the definition of the term provided in the present disclosure controls.
As used herein, a feature that does not define a singular or plural form is also intended to include a plural form of the feature unless the context clearly indicates otherwise. It will be further understood that the term "prepared from …," as used herein, is synonymous with "comprising," including, "comprising," "having," "including," and/or "containing," when used in this specification means that the recited composition, step, method, article, or device is present, but does not preclude the presence or addition of one or more other compositions, steps, methods, articles, or devices. Furthermore, the use of "preferred," "preferably," "more preferred," etc., when describing embodiments of the present invention, is meant to refer to embodiments of the invention that may provide certain benefits, under certain circumstances. However, other embodiments may be preferred, under the same or other circumstances. In addition, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.
In order to achieve the above object, in one aspect, the present invention provides a low-hardness and easy-to-process stainless steel material for a zipper button, comprising the following components by weight: c: 0.01-0.05%; si: 0.1-0.5%; mn: 13-18%; cr: 15-25%; n: 0.5-0.95%; cu: 1.0-1.8%; b: 0.001-0.006%; the balance being Fe.
In some preferred embodiments, the stainless steel comprises the following composition in weight percent: c: 0.02-0.04%; si: 0.15-0.4%; mn: 12.5-16%; cr: 16-23%; n: 0.6-0.85%; cu: 1.1-1.5%; b: 0.002-0.006%; the balance being Fe.
The reason for using the above components is as follows:
c, carbon C: as an effective austenite phase stabilizing element, an element that can contribute to improvement of elastic properties, but carbon causes a decrease in corrosion resistance of stainless steel, and if carbon is present in a solid solution in an excessive amount, workability of stainless steel is deteriorated, so that the weight percentage of carbon is controlled to 0.01 to 0.05%.
Silicon Si: the corrosion resistance of the austenitic stainless steel to chloride is improved, but Si is an element for inhibiting the formation of austenite, and the mechanical property of the stainless steel is deteriorated due to the excessive addition of Si, so that the weight percentage of Si is controlled to be 0.1-0.5%.
Chromium Cr: is a main alloy element of austenitic stainless steel, and can improve the solubility of N in the steel; in addition, a chromium-rich oxide film can be formed on the surface of the stainless steel, so that the corrosion resistance of the stainless steel is effectively improved.
N: is a strong austenite forming and stabilizing element, can expand the range of austenite in a phase diagram and is helpful for keeping the alloy nonmagnetic.
Manganese Mn: is a strong austenitizing element in steel, but the capability of forming austenite is far less than that of Ni, and the main purpose of adding a large amount of manganese in austenitic stainless steel is to improve the solubility of N in steel together with Cr element and to obtain a single austenite structure by synergistic action with N element.
Copper Cu: is a stabilizing element for austenite phase and is an effective element for imparting workability which is impaired if an excessive amount of Cu is added so as to exceed the upper limit of solid solubility, and therefore the weight percentage of Cu is set to 1.0 to 1.8%.
B, boron B: the hardenability and toughness of the steel can be improved.
The invention also provides a preparation method of the low-hardness and easy-processing stainless steel material for the zipper buttons, which comprises the following steps:
(1) weighing the components according to the weight ratio, respectively placing the weighed metal components in a beaker filled with alcohol for ultrasonic cleaning for 10min, and drying by using a blower with cold air;
(2) smelting the prepared raw materials by a vacuum smelting furnace, and repeatedly smelting for 8-15 times to obtain an ingot;
(3) forging the ingot obtained by smelting;
(4) annealing the forged workpiece;
(5) cold rolling the annealed workpiece with different deformation amounts to obtain a rolled workpiece;
(6) carrying out solution treatment on a rolled workpiece, and carrying out quenching treatment after heat preservation
In some preferred embodiments, the ingot needs to be heated to 1200-1230 ℃ and kept for 1-3 h before forging.
The porosity and pores in the cast structure can be compacted by forging, the coarse cast structure (dendritic crystal grains) is crushed into fine crystal grains, and a fiber structure is formed. The mechanical properties of the part can be improved when the fibrous texture is reasonably distributed along the contour of the part.
In some preferred embodiments, the forging has a finish forging temperature of not less than 1050 ℃.
In some preferred embodiments, the annealing temperature is 1050-.
The annealing treatment is carried out on the forged workpiece in order to eliminate work hardening generated in the forging process, remove thermal stress and avoid the tendency of cracking in the subsequent treatment process.
In some preferred embodiments, the cold rolling is performed at room temperature of 25-30 ℃ with a gauge deformation of 10% per pass.
The cold rolling treatment of the workpiece can effectively refine grains, so that the toughness of the stainless steel is improved, but work hardening can occur after the cold rolling treatment, in order to eliminate residual stress, improve structure defects and make the structure more uniform, the workpiece is subjected to solution treatment, the solution treatment is to heat the alloy to a high-temperature austenite region and keep the temperature for a certain time, so that an excess phase is fully dissolved in a solid solution, then quenching treatment is carried out, so that the alloy is rapidly cooled from an austenite state, a single austenite structure is obtained, and the austenitic stainless steel is obtained.
In some preferred embodiments, the temperature range of the solution treatment is 1100-1150 ℃, and the time of the solution treatment is 2-6 h.
In some preferred embodiments, the annealing treatment and the solution treatment use a vacuum or a protective gas environment, and the protective gas is argon or helium.
In some preferred embodiments, the quenching medium is water or oil.
Examples
Table 1 shows the weight ratio (%) of each component of the stainless steel in each example.
TABLE 1
| Composition/percent% | Example 1 | Example 2 | Example 3 |
| C | 0.02 | 0.03 | 0.05 |
| Cr | 16.5 | 20.0 | 22 |
| Mn | 12.5 | 14.0 | 16.0 |
| B | 0.002 | 0.004 | 0.003 |
| N | 0.6 | 0.75 | 0.82 |
| Si | 0.2 | 0.3 | 0.4 |
| Cu | 1.2 | 1.35 | 1.5 |
| Fe | Balance of | Balance of | Balance of |
Example 1
The embodiment relates to a preparation method of a low-hardness and easy-to-process stainless steel material for a zipper button, which comprises the following steps:
(1) accurately weighing the components according to the weight ratio corresponding to the embodiment 1 in the table 1, respectively placing the weighed metal components Cr, Cu, Fe and Mn in a beaker filled with alcohol for ultrasonic cleaning for 10min, and drying by using a blower with cold air;
(2) smelting the prepared raw materials by a vacuum smelting furnace, and repeatedly smelting for 10 times to obtain an ingot;
(3) heating the ingot obtained by smelting to 1200 ℃, and preserving heat for 3 hours to start forging;
(4) annealing the forged workpiece for 3 hours under the condition of 1080 ℃;
(5) cold rolling the annealed workpiece with the thickness deformation of 50% at room temperature, wherein the thickness deformation of each rolling is 10%, and thus a rolled workpiece is obtained;
(6) and (3) carrying out solution treatment on the rolled workpiece under the conditions of 1120 ℃ and 3h, and carrying out water-cooling quenching treatment after heat preservation.
Example 2
The embodiment relates to a preparation method of a low-hardness and easy-to-process stainless steel material for a zipper button, which comprises the following steps:
(1) accurately weighing the components according to the weight ratio corresponding to the embodiment 2 in the table 1, respectively placing the weighed metal components Cr, Cu, Fe and Mn in a beaker filled with alcohol for ultrasonic cleaning for 10min, and drying by using a blower with cold air;
(2) smelting the prepared raw materials by a vacuum smelting furnace, and repeatedly smelting for 12 times to obtain an ingot;
(3) heating the ingot obtained by smelting to 1220 ℃, and preserving heat for 2h to start forging;
(4) annealing the forged workpiece at 1100 ℃ for 3 h;
(5) cold rolling the annealed workpiece with the thickness deformation of 50% at room temperature, wherein the thickness deformation of each rolling is 10%, and thus a rolled workpiece is obtained;
(6) the rolled workpiece is subjected to solution treatment under the conditions of 1150 ℃ and 4 hours, and is subjected to water-cooling quenching treatment after heat preservation.
Example 3
The embodiment relates to a preparation method of a low-hardness and easy-to-process stainless steel material for a zipper button, which comprises the following steps:
(1) accurately weighing the components according to the weight ratio corresponding to the embodiment 3 in the table 1, respectively placing the weighed metal components Cr, Cu, Fe and Mn in a beaker filled with alcohol for ultrasonic cleaning for 10min, and drying by using a blower with cold air;
(2) smelting the prepared raw materials by a vacuum smelting furnace, and repeatedly smelting for 15 times to obtain an ingot;
(3) heating the ingot obtained by smelting to 1230 ℃, and preserving the heat for 1h to start forging;
(4) annealing the forged workpiece at 1050 ℃ for 4 h;
(5) cold rolling the annealed workpiece with the thickness deformation of 50% at room temperature, wherein the thickness deformation of each rolling is 10%, and thus a rolled workpiece is obtained;
(6) the rolled workpiece is subjected to solution treatment under the conditions of 1150 ℃ and 5 hours, and is subjected to water-cooling quenching treatment after heat preservation.
Comparative example 1
The comparative example 1 relates to a low-hardness and easy-to-process stainless steel material for a zipper button and a preparation method thereof, and is different from example 1 in that the weight ratio of Mn is 10%.
Comparative example 2
The comparative example 2 relates to a low-hardness and easy-to-process stainless steel material for a zipper button and a preparation method thereof, and is different from example 1 in that the weight ratio of N is 0.3%.
Comparative example 3
The comparative example 3 relates to a low-hardness and easy-to-process stainless steel material for a zipper button and a preparation method thereof, and is different from example 1 in that the weight ratio of Cr is 12%.
Comparative example 4
The comparative example 4 relates to a low-hardness, easily workable stainless steel material for a zipper button and a method for preparing the same, which is different from example 1 in that the cold-rolled thickness deformation amount is 30%.
Comparative example 5
The comparative example 5 relates to a low-hardness, easily workable stainless steel material for a zipper button and a method for preparing the same, which are different from example 1 in that the cold-rolled thickness deformation amount is 70%.
And (3) performance testing:
the mechanical properties and magnetic properties of examples 1 to 3 of the present invention and comparative examples 1 to 5 were measured, and the results are shown in Table 2.
Table 2 results of performance testing
| Object | Tensile strength/MPa | Yield strength/MPa | Impact toughness/J | hardness/HRB | Magnetic permeability |
| Example 1 | 829 | 750 | 138 | 312 | 1.0012 |
| Example 2 | 825 | 748 | 132 | 308 | 1.0015 |
| Example 3 | 821 | 739 | 130 | 310 | 1.0013 |
| Comparative example 1 | 770 | 695 | 128 | 290 | 1.4012 |
| Comparative example 2 | 783 | 689 | 125 | 295 | 1.6002 |
| Comparative example 3 | 792 | 694 | 127 | 291 | 1.3501 |
| Comparative example 4 | 784 | 701 | 132 | 304 | 1.0018 |
| Comparative example 5 | 767 | 710 | 135 | 309 | 1.0025 |
The test results in table 2 show that the stainless steel prepared by using the chemical components provided by the invention has excellent mechanical properties and machinability, qualified magnetic permeability value and stable non-magnetism, and the comparative examples 4 and 5 show that the stainless steel still has qualified magnetic permeability after different cold rolling deformation amounts, which indicates that the stainless steel of the invention has stable austenite structure and is not easy to have martensite phase transformation.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The low-hardness and easy-processing stainless steel material for the zipper buttons is characterized by comprising the following components in percentage by weight: c: 0.01-0.05%; si: 0.1-0.5%; mn: 13-18%; cr: 15-25%; n: 0.5-0.95%; cu: 1.0-1.8%; b: 0.001-0.006%; the balance being Fe;
the preparation method of the stainless steel material comprises the following steps:
(1) weighing the components according to the weight ratio, respectively placing the weighed metal components in a beaker filled with alcohol for ultrasonic cleaning for 10min, and drying by using a blower with cold air;
(2) smelting the prepared raw materials by a vacuum smelting furnace, and repeatedly smelting for 8-15 times to obtain an ingot;
(3) forging the ingot obtained by smelting;
(4) annealing the forged workpiece;
(5) performing cold rolling on the annealed workpiece with the thickness deformation of 50% to obtain a rolled workpiece;
(6) carrying out solution treatment on a rolled workpiece, and carrying out quenching treatment after heat preservation;
before forging, the ingot needs to be heated to 1200-1230 ℃, and the temperature is kept for 1-3 h;
the final forging temperature of the forging is not lower than 1050 ℃;
the temperature of the annealing treatment is 1050-;
the cold rolling condition is 25-30 ℃ at room temperature, and the thickness deformation of each rolling is 10%;
the temperature range of the solid solution treatment is 1100-1150 ℃, and the time of the solid solution treatment is 2-6 h.
2. The low-hardness and easy-processing stainless steel material for the zipper buttons as claimed in claim 1, wherein the stainless steel comprises the following components in percentage by weight: c: 0.02-0.04%; si: 0.15-0.4%; mn: 12.5-16%; cr: 16-23%; n: 0.6-0.85%; cu: 1.1-1.5%; b: 0.002-0.006%; the balance being Fe.
3. The low-hardness and easy-to-machine stainless steel material for the zipper buttons according to claim 1, wherein the annealing treatment and the solution treatment are performed in a vacuum or protective gas environment, and the protective gas is argon or helium.
4. The low-hardness and easy-processing stainless steel material for the zipper buttons according to claim 1, wherein a medium for quenching treatment is water or oil.
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| CN103154291A (en) * | 2010-09-29 | 2013-06-12 | 新日铁住金不锈钢株式会社 | Austenite high-manganese stainless steel, manufacturing method therefor, and member using said steel |
| US20150218759A1 (en) * | 2012-09-11 | 2015-08-06 | Voestalpine Schienen Gmbh | Method for producing bainitic rail steels, track element and installation for carrying out the method |
| CN108546889A (en) * | 2018-05-11 | 2018-09-18 | 飞亚达（集团）股份有限公司 | A kind of stainless steel material and preparation method thereof |
| CN109504919A (en) * | 2018-12-22 | 2019-03-22 | 中南大学 | A kind of copper vanadium enhancing austenitic stainless steel against corrosion and preparation method thereof |
| CN110106452A (en) * | 2019-05-06 | 2019-08-09 | 太原理工大学 | Compound addition B is precipitated with Ce improvement 6Mo type super austenitic stainless steel sigma phase and the method for resistance to intergranular corrosion |
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