CN201037590Y - Super austenitic stainless steel 904L composite board - Google Patents
Super austenitic stainless steel 904L composite board Download PDFInfo
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- CN201037590Y CN201037590Y CNU2007200368216U CN200720036821U CN201037590Y CN 201037590 Y CN201037590 Y CN 201037590Y CN U2007200368216 U CNU2007200368216 U CN U2007200368216U CN 200720036821 U CN200720036821 U CN 200720036821U CN 201037590 Y CN201037590 Y CN 201037590Y
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- stainless steel
- austenitic stainless
- super austenitic
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Abstract
A super austenitic stainless steel 904L composite plate consisting of a super austenitic stainless steel 904L alloy plate and a basal plate have a total area of 16-20m<2>, wherein the basal plate is made of steel. The performances of the utility model such as joint rate and shear strength can meet the requirements of standards like JB/T4733-1996 Explosive Stainless Clad Steel Plate for Pressure Vessels and ASMESA-264 Stainless Chrome Nickel Clad Steel Plate, and the joint rate can hit over 99.9 percent and the minimum shear strength can realize T<b>more than or equal to 210MPa after repair welding on a detonation point after explosion cladding. The utility model can meet the development requirements of equipment manufacture and chemical industries regarding both mechanical property and anticorrosion property.
Description
Technical field
The utility model relates to composite metal plate, relates in particular to large size super austenitic stainless steel 904L composite sheet.
Background technique
(00Cr20Ni25Mo4.5CuN, UNS:N08904 EN:1.4539) are the Austenitic Stainless Steel of the very low high-alloying of a kind of carbon content to super austenitic 904L.This steel is designed for the etching condition rigorous environment.Originally, this steel is anticorrosive exploitation the in dilute sulfuric acid; Now, 904L by standardization, and can be used for making pressurized container by authorization in many countries.Because higher chromium, nickel, molybdenum and copper content, the 904L stainless steel is to homogeneous corrosion, and particularly dilute sulfuric acid has good corrosion resistance.Other characteristic also comprises: good anti-pitting corrosion and crevice corrosion ability; The very high stress corrosion resistant ability of breaking; The ability of good anti intercrystalline corrosion; Good workability and weldability.The 904L stainless steel is used for the manufacturing equipment of chemical industry with the different product form, as system acetic acid distillation column, makes the acetylene decontaminating column, is used for the pipeline of sulfuric acid and storage tank etc.Therefore the application in chemical industry, petrochemical industry, the energy and environment-friendly engineering in recent years also increases gradually.But at home owing to be subjected to the restriction of material and price, application or less is so guaranteeing not reduce under the prerequisite of service life of equipment and performance employing super austenitic stainless steel 904L composite sheet, not only make full use of properties of materials, also greatly reduced the cost of equipment.
The super austenitic stainless steel 904L composite sheet of domestic pressure containers relies on mostly from external import at present, not only cost an arm and a leg, and the delivery cycle is very long, is unfavorable for applying of China super austenitic stainless steel 904L composite board equipment like this, more is unfavorable for the development of national industry.Therefore big super austenitic stainless steel of independent research 904L composite sheet is to reducing the device fabrication cost, shortening the device fabrication cycle and will play significance.
Summary of the invention
The purpose of this utility model is: a kind of high-quality large size super austenitic stainless steel 904L composite sheet is provided, to realize the requirement of production domesticization, satisfies the needs of China's chemical industry development.
The technical solution of the utility model is: super austenitic stainless steel 904L composite sheet, comprise that super austenitic stainless steel 904L alloy sheets and substrate constitute, and the entire plate face amasss at 16-20m
2, wherein substrate is a steel plate, and 904L alloy sheets thickness is 3-10mm, and substrate thickness is more than the 10mm.
The utility model adopts blast compound, based on super austenitic stainless steel 904L good anti-corrosion, super austenitic stainless steel 904L alloy sheets one deck as the contact corrosion medium; Armor plate strength is good, as other one deck of bearing load.
Performances such as the utility model applying rate and shear strength all can satisfy the requirement of JB/T4733-1996 " pressurized container blast stainless compound steel plate " standard and ASME SA-264 " stainless chromium nickel steel Clad Steel Plate " standard, minimum shear strength T is carried out after the repair welding applying rate being reached more than 99.9% in compound back to fire point by exploding
b〉=210Mpa.No matter the utility model still is the needs that decay resistance all can satisfy the development of device fabrication and chemical industry from mechanical property.
Description of drawings
Fig. 1 is an enforcement schematic representation of the present utility model.
Wherein super austenitic stainless steel 904L alloy sheets 1, substrate 2, support block 3, protective layer 4.
Embodiment
The utility model adopts blast compound, and as compound plate, steel plate was support gap, clearance height 10mm as a following laminar substrate between two plates above compound tense was placed on super austenitic stainless steel 904L alloy sheets.The compound dose that explodes will suitably reduce, and for fear of burn compound plate face in the blast recombination process, the protective layer between compound plate and the explosive also will be thickeied.Super austenitic stainless steel 904L alloy sheets thickness is 65mm, plate width of cloth size is 9100mm * 2100mm (L * W), substrate thickness is a 620mm 20R steel plate, the plate width of cloth is of a size of 9000mm * 2000mm, and (L * W), the main body explosive of selecting for use is a powdery emulsifying explosive, and the parameter of powdery emulsifying explosive is: explosion velocity 〉=3200m/s, quick-fried heat 〉=4000KJ/Kg, 2654 ℃ of quick-fried temperature, detonation pressure 519Mpa, density (0.95～1.25) g/cm
3, brisance (lead block compressed value) 〉=15mm.Back distribution explosive is protected on super austenitic stainless steel 904L alloy sheets surface, and explosive load is 2.89g/cm
3Flashpoint is placed on super austenitic stainless steel 904L alloy compound plate center, as Fig. 1.Explode compound after, behind heat treatment, leveling, by JB/T4733-1996 " pressurized container with blast stainless compound steel plate " standard and ASMESA-264 " stainless chromium nickel steel Clad Steel Plate " standard applying rate and shear strength are detected, the applying rate reaches 99.9 above %, shear strength τ
b〉=210Mpa.
Claims (2)
1. super austenitic stainless steel 904L composite sheet comprises by super austenitic stainless steel 904L alloy sheets (1) and substrate (2) constituting, and it is characterized in that the entire plate face amasss at 16-20m
2, alloy sheets thickness is 3-10mm, substrate thickness is more than the 10mm.
2. super austenitic stainless steel 904L composite sheet according to claim 1 is characterized in that substrate (2) is a steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200368216U CN201037590Y (en) | 2007-04-29 | 2007-04-29 | Super austenitic stainless steel 904L composite board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200368216U CN201037590Y (en) | 2007-04-29 | 2007-04-29 | Super austenitic stainless steel 904L composite board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201037590Y true CN201037590Y (en) | 2008-03-19 |
Family
ID=39210105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200368216U Expired - Fee Related CN201037590Y (en) | 2007-04-29 | 2007-04-29 | Super austenitic stainless steel 904L composite board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201037590Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371719A (en) * | 2011-08-29 | 2012-03-14 | 西北有色金属研究院 | Method for preparing copper/molybdenum/copper layered compound metallic material |
-
2007
- 2007-04-29 CN CNU2007200368216U patent/CN201037590Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371719A (en) * | 2011-08-29 | 2012-03-14 | 西北有色金属研究院 | Method for preparing copper/molybdenum/copper layered compound metallic material |
| CN102371719B (en) * | 2011-08-29 | 2013-08-07 | 西北有色金属研究院 | Method for preparing copper/molybdenum/copper layered compound metallic material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ANHUI BAOTAI SPECIAL MATERIALS CO., LTD. Assignor: Nanjing Baotai Special Material Co., Ltd. Contract record no.: 2010320000197 Denomination of utility model: Super austenitic stainless steel 904L composite board Granted publication date: 20080319 License type: Exclusive License Record date: 20100310 |
|
| C56 | Change in the name or address of the patentee |
Owner name: NANJING BAOTAI SPECIAL MATERIALS CO., LTD. Free format text: FORMER NAME: NANJING BAOTAI SPECIAL MATERIAL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 211100 No. 29 Lake Road, Jiangning District, Jiangsu, Nanjing Patentee after: Nanjing Baotai Special Material Co.,Ltd. Address before: 211100 No. 29 Lake Road, Jiangning District, Jiangsu, Nanjing Patentee before: Nanjing Baotai Special Material Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 Termination date: 20160429 |