CN106957998A - The flange forge piece and its production technology of a kind of dual phase steel material - Google Patents
The flange forge piece and its production technology of a kind of dual phase steel material Download PDFInfo
- Publication number
- CN106957998A CN106957998A CN201610013749.9A CN201610013749A CN106957998A CN 106957998 A CN106957998 A CN 106957998A CN 201610013749 A CN201610013749 A CN 201610013749A CN 106957998 A CN106957998 A CN 106957998A
- Authority
- CN
- China
- Prior art keywords
- forging
- dual phase
- steel material
- phase steel
- forge piece
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—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
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Forging (AREA)
Abstract
The present invention provides each chemical composition proportion in the flange forge piece and its production technology of a kind of dual phase steel material, its material：C:≤0.03；Si:≤1.00；Mn：≤2.00；P:≤0.03；S:≤0.02；Cr:22-23；Ni:4.5-6.5；Mo：3-3.5；N:≤ 0.14-0.20, through smelting, forging, heat treatment is produced and processed, in forging process, initial forging temperature is 1180 DEG C ± 20 DEG C, and final forging temperature is more than 900 DEG C, air cooling after forging, in the flange forge piece for the dual phase steel material that the present invention is provided, in its materials chemistry constituent, nickel element content is improved, so as to greatly improve low-temperature impact work.
Description
Technical field
The invention mainly relates to the flange forge piece and its production technology in metal forging field, more particularly to a kind of dual phase steel material.
Background technology
The two-way stainless steel of austenite+ferrite（Hereinafter referred to as dual phase steel）Refer to the stainless steel containing two phase compositions of austenite and ferrite, in dual phase steel, existing austenite structure structure, there is ferritic structure structure again, and this two phase constitution is individually present, content is all larger, and the content of general minimum phase should be greater than 15%, and the two phase stainless steel applied in Practical Project is more using austenite as base and containing the ferrite not less than 30%, most commonly two-phase respectively accounts for 50% two phase stainless steel.Due to two-phase structure, the characteristics of two phase stainless steel has austenitic stainless steel and ferritic stainless steel concurrently.Compared with ferritic stainless steel, the toughness of two phase stainless steel is high, and brittle transition temperature is low, and intergranular corrosion resistance performance and welding performance are significantly increased, remain the Some features of ferritic stainless steel again simultaneously, such as fragility is big, thermal conductivity factor is high, linear expansion coefficient is small, with superplasticity, be magnetic.Compared with austenitic stainless steel, the intensity of two phase stainless steel is high, and particularly yield strength is significantly improved, and the performance such as intergranular corrosion resistance, anticorrosion stress-resistant, resistance to corrosion fatigue improves significantly.
According to foreign statistic data, current two-phase output of steel accounts for total output ratio less than 5%, it may be said that dual phase steel worldwide still falls within the stage at the early-stage.In the last few years, China's dual phase steel was applied and popularized very fast, was widely applied in industries such as petrochemical industry, paper industry, energy industry, oil gas transports, the usage amount of wherein two-phase steel flange and forging is very big.For my company, the dual phase steel application in ASME SA-182 and NB/T47010 is most, conventional such as F60, F53, F51.
At present, client has two kinds to two-way steel performance requirement, and one kind is to meet SA-182 or NB/T47010, and another is secondary cryogenic impact requirement, i.e. at -45 DEG C, ballistic work is more than 54J.For there are the two-phase steel forgings of low-temperature impact requirement, when having this require, when using standard analysis and common process production, requirement can not be met substantially.
The content of the invention
The present invention provides each chemical composition proportion in a kind of flange forge piece of dual phase steel material, its material：C: ≤0.03；Si: ≤1.00 ；Mn ： ≤2.00；P:≤ 0.03；
S:≤ 0.02；Cr: 22-23；Ni:4.5-6.5；Mo：3-3.5；N:≤ 0.14-0.20.
The present invention also provides the flange forge piece and its production technology of a kind of dual phase steel material, including smelts, forges, is heat-treated, in forging process, and initial forging temperature is 1180 DEG C ± 20 DEG C, and final forging temperature is more than 900 DEG C, air cooling after forging.
It is preferred that, the heat treatment uses solution treatment, and solid solution temperature is 1060 DEG C ± 10 DEG C, and water-cooled is used after heat treatment.
Beneficial effects of the present invention：In the flange forge piece for the dual phase steel material that the present invention is provided, in its materials chemistry constituent, nickel element content is improved, so as to greatly improve low-temperature impact work.
Embodiment
The present invention provides each chemical composition proportion in a kind of flange forge piece of dual phase steel material, its material：C: ≤0.03；Si: ≤1.00 ；Mn ： ≤2.00；P:≤ 0.03；
S:≤ 0.02；Cr: 22-23；Ni:4.5-6.5；Mo：3-3.5；N:≤ 0.14-0.20.
The present invention also provides a kind of production technology of the flange forge piece for above-mentioned dual phase steel material, including smelts, forges, is heat-treated, in forging process, and initial forging temperature is 1180 DEG C ± 20 DEG C, and final forging temperature is more than 900 DEG C, air cooling after forging.
It is preferred that, the heat treatment uses solution treatment, and solid solution temperature is 1060 DEG C ± 10 DEG C, and water-cooled is used after heat treatment.
Case study on implementation one：
The F60 materials of two hearth numbers are have chosen, wherein table 1 is the chemical composition proportion situation of the flange forge piece of low temperature dual phase steel material provided by the present invention, and table 2 is the chemical composition proportion situation of common material；
The SA-182 F60 chemical compositions of table 1（Hearth number：2536220）%
The SA-182 F60 chemical compositions of table 2（Hearth number：2536266）%
Using the production technology of the flange forge piece of dual phase steel material provided by the present invention, its step includes：Step one：Smelt；
Step 2：Forging, two kinds of materials respectively choose 25Kg materials, are swaged into the forging of φ 200 × 100mm sizes, and initial forging temperature is 1180 DEG C ± 20 DEG C, and final forging temperature is more than 900 DEG C, and total forging ratio is more than 3, air cooling after forging；
Step 3：Heat treatment, heat treatment uses solution treatment, and solid solution temperature is 1060 DEG C ± 10 DEG C, water-cooled.
Sampling is machined out after heat treatment, sample axis is located at the half of forging thickness, a tensile sample is processed respectively, one group of impact specimen, mechanical performance data is shown in Table 3 and table 4, table 3 is corresponding with table 1, is the mechanical performance data of the flange forge piece of dual phase steel material provided by the present invention, refers to table 3：
The SA-182 F60 mechanical properties of table 3（Hearth number：2536220）
Table 4 is corresponding with table 2, is the mechanical performance data table of common material, refers to table 4：
The SA-182 F60 mechanical properties of table 4（Hearth number：2536266）
Nickel element content is improved it can be seen from data above can greatly improve low-temperature impact work.Because ferronickel price is high, common two-way steel nickel content is all removed the limit during smelting, and for F60 steel grades, nickel content is substantially between 4.5 ~ 4.7%.When hearth number is lifted to 5.76% for the nickel content of 2536220 F60 two-way steels, low-temperature impact work can be stablized in more than 150J, fully meet the 54J of client's proposition requirement.
The principle and its effect of above-described embodiment only illustrative present patent application, not for limitation present patent application.Any person skilled in the art all can carry out modifications and changes without prejudice under the spirit and scope of present patent application to above-described embodiment.Therefore, those of ordinary skill in the art is completed under without departing from the spirit and technological thought disclosed in present patent application such as all equivalent modifications or change, the claim that should be asked by this patent are covered.
Claims (3)
1. a kind of flange forge piece of dual phase steel material, it is characterised in that：Each chemical composition proportion is in its material：C: ≤0.03；Si: ≤1.00 ；Mn ： ≤2.00；P:≤ 0.03；S:≤ 0.02；Cr: 22-23；Ni:4.5-6.5；Mo：3-3.5；N:≤ 0.14-0.20.
2. a kind of production technology of the flange forge piece of dual phase steel material for described in claim 1, including smelt, forge, be heat-treated, it is characterised in that：In forging process, initial forging temperature is 1180 DEG C ± 20 DEG C, and final forging temperature is more than 900 DEG C, air cooling after forging.
3. the production technology of the flange forge piece of dual phase steel material according to claim 2, it is characterised in that：Heat treatment uses solution treatment, and solid solution temperature is 1060 DEG C ± 10 DEG C, and water-cooled is used after heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013749.9A CN106957998A (en) | 2016-01-11 | 2016-01-11 | The flange forge piece and its production technology of a kind of dual phase steel material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013749.9A CN106957998A (en) | 2016-01-11 | 2016-01-11 | The flange forge piece and its production technology of a kind of dual phase steel material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106957998A true CN106957998A (en) | 2017-07-18 |
Family
ID=59480606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610013749.9A Pending CN106957998A (en) | 2016-01-11 | 2016-01-11 | The flange forge piece and its production technology of a kind of dual phase steel material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106957998A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487174A (en) * | 2018-11-30 | 2019-03-19 | 山西太钢不锈钢股份有限公司 | A kind of two phase stainless steel manufacturing method of plate thereof for taking into account elevated temperature strength and low-temperature flexibility |
| CN112941400A (en) * | 2021-01-29 | 2021-06-11 | 无锡市法兰锻造有限公司 | Phase proportion control method for duplex stainless steel |
| CN113523166A (en) * | 2021-07-21 | 2021-10-22 | 苏州雷格姆海洋石油设备科技有限公司 | Production process of 25% Cr large-wall-thickness super binocular stainless steel forging for deep sea connector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999806A (en) * | 2006-12-31 | 2007-07-18 | 许季祥 | High performance corrosion-proof rare earth super strength dual-phase stainless steel and its smelting tech. |
| CN101748343A (en) * | 2008-12-01 | 2010-06-23 | 朱浩锋 | High-corrosion resistant high-strength dual-phase hot-rolled stainless steel strip and hot rolling process thereof |
| CN101935809A (en) * | 2010-09-10 | 2011-01-05 | 钢铁研究总院 | High performance rare-earth duplex stainless steel alloy material and preparation method thereof |
| CN102021496A (en) * | 2010-12-17 | 2011-04-20 | 何建 | Duplex stainless steel and production process thereof |
| CN102102166A (en) * | 2009-12-18 | 2011-06-22 | 李锦峰 | Duplex stainless steel with high corrosion resistance and production technology thereof |
| CN104531964A (en) * | 2014-11-28 | 2015-04-22 | 振石集团东方特钢股份有限公司 | Production method of high performance duplex stainless steel hot rolled coil |
-
2016
- 2016-01-11 CN CN201610013749.9A patent/CN106957998A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999806A (en) * | 2006-12-31 | 2007-07-18 | 许季祥 | High performance corrosion-proof rare earth super strength dual-phase stainless steel and its smelting tech. |
| CN101748343A (en) * | 2008-12-01 | 2010-06-23 | 朱浩锋 | High-corrosion resistant high-strength dual-phase hot-rolled stainless steel strip and hot rolling process thereof |
| CN102102166A (en) * | 2009-12-18 | 2011-06-22 | 李锦峰 | Duplex stainless steel with high corrosion resistance and production technology thereof |
| CN101935809A (en) * | 2010-09-10 | 2011-01-05 | 钢铁研究总院 | High performance rare-earth duplex stainless steel alloy material and preparation method thereof |
| CN102021496A (en) * | 2010-12-17 | 2011-04-20 | 何建 | Duplex stainless steel and production process thereof |
| CN104531964A (en) * | 2014-11-28 | 2015-04-22 | 振石集团东方特钢股份有限公司 | Production method of high performance duplex stainless steel hot rolled coil |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487174A (en) * | 2018-11-30 | 2019-03-19 | 山西太钢不锈钢股份有限公司 | A kind of two phase stainless steel manufacturing method of plate thereof for taking into account elevated temperature strength and low-temperature flexibility |
| CN112941400A (en) * | 2021-01-29 | 2021-06-11 | 无锡市法兰锻造有限公司 | Phase proportion control method for duplex stainless steel |
| CN113523166A (en) * | 2021-07-21 | 2021-10-22 | 苏州雷格姆海洋石油设备科技有限公司 | Production process of 25% Cr large-wall-thickness super binocular stainless steel forging for deep sea connector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2006212194B2 (en) | Austenitic stainless steel | |
| CN101994066B (en) | Deformation induced maraging stainless steel and machining process thereof | |
| JP6004653B2 (en) | Ferritic stainless steel wire, steel wire, and manufacturing method thereof | |
| JP7186859B2 (en) | Steel wire, its manufacturing method, and spring or medical wire product manufacturing method | |
| CN108359902B (en) | A kind of high performance alloys steel flange and forging and its manufacturing method | |
| CN101886228B (en) | Low carbon martensite aged stainless steel with high strength high toughness and high decay resistance performances | |
| WO2010087766A1 (en) | Stainless austenitic low ni steel alloy | |
| CN106756606B (en) | A kind of martensite heat resistant steel and its Method of grain display | |
| CN105452515A (en) | High-chromium heat-resistant steel | |
| CN107541662A (en) | A kind of corrosion resistant ferritic stainless steel alloy material and preparation method thereof | |
| JP5018863B2 (en) | Duplex stainless steel with excellent alkali resistance | |
| CN113265588A (en) | Chromium-molybdenum alloy steel forging capable of improving impact performance and manufacturing process thereof | |
| CN106957998A (en) | The flange forge piece and its production technology of a kind of dual phase steel material | |
| CN107747050A (en) | A kind of ferritic stainless steel alloy material and preparation method thereof | |
| JPH0561344B2 (en) | ||
| CN114086075A (en) | High-nitrogen austenite nickel-saving stainless steel and hot working method of high-performance welding heat affected zone thereof | |
| CN101638750A (en) | Martensitic stainless steel for cutting tool and manufacturing method thereof | |
| CN105177455A (en) | 2400MPa-grade high-alloy ultrahigh-strength steel | |
| CN104264058A (en) | Biphasic stainless steel line pipe with yield strength of 555 MPa or above and manufacturing method thereof | |
| Lee et al. | The influence of niobium and aging treatment in the 18% Ni maraging steel | |
| CN103725954B (en) | A kind of High-strength corrosion-resistancesteel steel wire and manufacturing process thereof | |
| CN105714208B (en) | A kind of anti-corrosion high chromium content ferrite stainless steel and preparation method and application | |
| RU2352680C1 (en) | Ferrite corrosion-resistant steel | |
| CN106319344A (en) | Martensitic stainless steel | |
| CN102230133B (en) | Cr-containing Alloy steel and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170718 |