CN105970115A - Economical high-performance copper-containing free-cutting austenitic stainless steel alloy material - Google Patents
Economical high-performance copper-containing free-cutting austenitic stainless steel alloy material Download PDFInfo
- Publication number
- CN105970115A CN105970115A CN201610372423.5A CN201610372423A CN105970115A CN 105970115 A CN105970115 A CN 105970115A CN 201610372423 A CN201610372423 A CN 201610372423A CN 105970115 A CN105970115 A CN 105970115A
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- alloy material
- stainless steel
- austenitic stainless
- performance
- steel alloy
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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
- C22C38/002—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
- 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
-
- 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
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
-
- 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
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
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- 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)
Abstract
The invention discloses an economical high-performance copper-containing free-cutting austenitic stainless steel alloy material. The economical high-performance copper-containing free-cutting austenitic stainless steel alloy material comprises, by mass percent, larger than or equal to 0.1% and smaller than or equal to 0.15% of C, 16.0%-18.0% of Cr, 1.4%-3.4% of Ni, 0.15%-0.35% of N, smaller than or equal to 0.75% of Si, larger than or equal to 8.0% and smaller than or equal to 12.0% of Mn, smaller than or equal to 0.04% of P, smaller than or equal to 0.03% of S, larger than or equal to 1.0% and smaller than or equal to 2.5% of Cu, and the balance Fe and inevitable impurities. The alloy material has good cutting performance and also has good hot working performance, and the alloy material has excellent corrosion resisting performance in the chloridion-enriched environment.
Description
Technical field
The present invention relates to a kind of economical high-performance cupric Cutting free austenitic stainless steel alloy material, belong to steel and alloy material
Material technical field.
Background technology
Austenitic stainless steel has excellent combination property and is widely used, but is as product cutting processing
Automatization and high speed development, the bad cutting ability of austenitic stainless steel causes that cutlery service life reduction, production efficiency are low, adds
Work high in cost of production problems.In order to improve the cutting ability of austenitic stainless steel, can be by improving the sulfur in steel further
Content.But the raising of sulfur content, will reduce the hot-working character of stainless steel material and the corrosion resistant in rich chloride environment
Erosion performance.Therefore, sulfur content brings up to a certain degree, in terms of cutting ability for be useful, and to decay resistance and
Hot-working aspect is disadvantageous.
Summary of the invention
It is an object of the invention to provide and a kind of not only there is good cutting ability, and there is preferable hot-workability
The economical high-performance cupric Cutting free austenitic stainless steel alloy material of energy.
The present invention is achieved by the following technical solution:
A kind of economical high-performance cupric Cutting free austenitic stainless steel alloy material, it has following composition and percent mass
Than (%): 0.1≤C≤0.15, Cr:16.0-18.0, Ni:1.4-3.4, N:0.15-0.35, Si≤0.75,8.0≤Mn≤
12.0, P≤0.04, S≤0.03,1.0≤Cu≤2.5, surplus is Fe and inevitable impurity.
Its production technology comprises the following steps: uses the induction melting process that tradition is conventional, after dispensing is founded, waters
Injection forming, forge hot, 980-1050 ° of C annealing, isothermal holding；Temperature retention time is according to the effective thickness of alloy material, every 1mm
Carry out according to the standard of 1.5min.
Its production technology also includes Ageing Treatment step: by above-mentioned austenitic stainless steel alloy material again at 720-780 ° of C
Carry out Ageing Treatment 2-4 hour, allow nanoscale Cu Rich Phase Precipitation.
Adding copper alloying element in austenitic stainless steel of the present invention, copper is austenitic formation and stable element, can be substantially
Improve the stability of austenite.A certain amount of copper can improve the intensity of low-alloy steel in steel, improves the resistance to of austenitic stainless steel
Corrosive nature, improves processing characteristics.The present invention adds copper in austenitic stainless steel, coordinates the heat treatment work after optimizing
Skill, the alloy material more excellent to obtain combination property by separating out nano level copper-rich precipitated phase in austenitic matrix.
Steel room temperature tensile tensile strength in the range of present component is in 830-850MPa scope, and yield strength is at 380-390MPa model
Enclosing, fracture elongation is more than 53%.
The mechanism of the present invention is as described below: copper is austenitic formation and stable element, can significantly improve stablizing of austenite
Property.In austenitic stainless steel, add copper, nano level copper-rich phase can be separated out after Ageing Treatment in austenitic matrix, change
Kind hot-working character and cutting ability.
The present invention compared with prior art has the advantages that
1, the present invention is possible not only to improve the cutting ability of austenitic stainless steel, and the heat that can improve austenitic stainless steel adds
Work performance, overcomes the defect improved reducing austenitic stainless steel material hot-working character of sulfur content in prior art.
2, the austenitic stainless steel alloy material of the present invention has the decay resistance of excellence in rich chloride environment.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the invention will be further described.
Embodiment 1: a kind of economical high-performance cupric Cutting free austenitic stainless steel alloy material, it has following one-tenth
Divide and mass percent (%):
Cr 16.7%
Ni 2.1%
Cu 1.4%
N 0.24%
Mn 10.1%
C 0.12%
Si 0.32%
S 0.02%
P 0.01%
Fe surplus
Its production technology comprises the following steps: uses the induction melting process that tradition is conventional, after comprehensive dispensing is founded, waters
Injection forming, through forge hot and 1050 ° of C annealings, isothermal holding, temperature retention time is pressed according to the effective thickness of alloy material, every 1mm
Standard according to 1.5min is carried out, then through 720 ° of C Ageing Treatment 3 hours, and final to prepare economical high-performance cupric Cutting free difficult to understand
Family name's body stainless steel alloy material.This alloy material room temperature tensile tensile strength 845 MPa, yield strength 390 MPa, extension
Rate 53%.
Embodiment 2: a kind of economical high-performance cupric Cutting free austenitic stainless steel alloy material, it has following one-tenth
Divide and mass percent (%):
Cr 17.5%
Ni 2.8%
Cu 2.2%
N 0.27%
Mn 11.2%
C 0.13%
Si 0.37%
S 0.01%
P 0.01%
Fe surplus
Its production technology comprises the following steps: uses the induction melting process that tradition is conventional, after comprehensive dispensing is founded, waters
Injection forming, through forge hot and 1000 ° of C annealings, isothermal holding, temperature retention time is pressed according to the effective thickness of alloy material, every 1mm
Standard according to 1.5min is carried out, then through 750 ° of C Ageing Treatment 3 hours, and final to prepare economical high-performance cupric Cutting free difficult to understand
Family name's body stainless steel alloy material.This alloy material room temperature tensile tensile strength 830 MPa, room-temperature yield strength 380 MPa, fracture
Elongation percentage 55%.
The present invention has good structure stability, cutting ability and decay resistance.The cupric Cutting free of the present invention is difficult to understand
Family name's body stainless steel alloy material is better than 203S rustless steel in terms of machinability and economy is more significantly.
Embodiment, only to facilitate understand technical scheme, is not intended that the limit to scope
System, every without departing from any letter perhaps according to the technical spirit of the present invention, above scheme made in technical solution of the present invention
Single amendment, equivalent variations and modification, within all still falling within scope.
Claims (3)
1. an economical high-performance cupric Cutting free austenitic stainless steel alloy material, it is characterised in that: it has following
Composition and mass percent (%): 0.1≤C≤0.15, Cr:16.0-18.0, Ni:1.4-3.4, N:0.15-0.35, Si≤
0.75,8.0≤Mn≤12.0, P≤0.04, S≤0.03,1.0≤Cu≤2.5, surplus is Fe and inevitable impurity.
Economical high-performance cupric Cutting free austenitic stainless steel alloy material the most according to claim 1, its feature exists
In: its production technology comprises the following steps: uses the induction melting process that tradition is conventional, after dispensing is founded, pours into
Type, forge hot, 980-1050 ° of C annealing, isothermal holding；Temperature retention time according to the effective thickness of alloy material, every 1mm according to
The standard of 1.5min is carried out.
Economical high-performance cupric Cutting free austenitic stainless steel alloy material the most according to claim 2, its feature exists
In: its production technology also includes Ageing Treatment step: when being carried out at 720-780 ° of C by above-mentioned austenitic stainless steel alloy material again
Effect processes 2-4 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610372423.5A CN105970115A (en) | 2016-05-31 | 2016-05-31 | Economical high-performance copper-containing free-cutting austenitic stainless steel alloy material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610372423.5A CN105970115A (en) | 2016-05-31 | 2016-05-31 | Economical high-performance copper-containing free-cutting austenitic stainless steel alloy material |
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| Publication Number | Publication Date |
|---|---|
| CN105970115A true CN105970115A (en) | 2016-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610372423.5A Pending CN105970115A (en) | 2016-05-31 | 2016-05-31 | Economical high-performance copper-containing free-cutting austenitic stainless steel alloy material |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106498285A (en) * | 2016-11-30 | 2017-03-15 | 中国科学院金属研究所 | A kind of austenite antimicrobial stainless steel without the need for Ageing Treatment |
| CN110607479A (en) * | 2019-04-24 | 2019-12-24 | 上海大学 | Stainless steel for valve spring and preparation method of steel wire of stainless steel |
| CN111809124A (en) * | 2020-07-23 | 2020-10-23 | 深圳市富鹏达金属材料有限公司 | Low-cost nonmagnetic alloy steel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1213013A (en) * | 1997-07-29 | 1999-04-07 | 于西纳公司 | Austenitic stainless steel having very low nickel content |
| CN1554795A (en) * | 2003-12-27 | 2004-12-15 | 张体勇 | High antibiotic property stainless steel |
| CN1995435A (en) * | 2006-12-29 | 2007-07-11 | 东莞市星宇特殊钢材有限公司 | Austenite magnet-free rustless cut-easy steel |
| CN101878319A (en) * | 2007-11-29 | 2010-11-03 | Ati资产公司 | Lean austenitic stainless steel |
| WO2014097184A2 (en) * | 2012-12-19 | 2014-06-26 | Centro Sviluppo Materiali S.P.A. | Austenitic stainless steel with high twinning induced plasticity, process for the production thereof and use thereof in the mechanical industry |
-
2016
- 2016-05-31 CN CN201610372423.5A patent/CN105970115A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1213013A (en) * | 1997-07-29 | 1999-04-07 | 于西纳公司 | Austenitic stainless steel having very low nickel content |
| CN1554795A (en) * | 2003-12-27 | 2004-12-15 | 张体勇 | High antibiotic property stainless steel |
| CN1995435A (en) * | 2006-12-29 | 2007-07-11 | 东莞市星宇特殊钢材有限公司 | Austenite magnet-free rustless cut-easy steel |
| CN101878319A (en) * | 2007-11-29 | 2010-11-03 | Ati资产公司 | Lean austenitic stainless steel |
| WO2014097184A2 (en) * | 2012-12-19 | 2014-06-26 | Centro Sviluppo Materiali S.P.A. | Austenitic stainless steel with high twinning induced plasticity, process for the production thereof and use thereof in the mechanical industry |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106498285A (en) * | 2016-11-30 | 2017-03-15 | 中国科学院金属研究所 | A kind of austenite antimicrobial stainless steel without the need for Ageing Treatment |
| CN106498285B (en) * | 2016-11-30 | 2019-02-12 | 中国科学院金属研究所 | A kind of austenite antimicrobial stainless steel without ageing treatment |
| CN110607479A (en) * | 2019-04-24 | 2019-12-24 | 上海大学 | Stainless steel for valve spring and preparation method of steel wire of stainless steel |
| CN110607479B (en) * | 2019-04-24 | 2021-11-05 | 上海大学 | Stainless steel for valve spring and preparation method of steel wire of stainless steel |
| CN111809124A (en) * | 2020-07-23 | 2020-10-23 | 深圳市富鹏达金属材料有限公司 | Low-cost nonmagnetic alloy steel |
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Application publication date: 20160928 |