CN111151920A - 3425LC welding strip and production process thereof - Google Patents
3425LC welding strip and production process thereof Download PDFInfo
- Publication number
- CN111151920A CN111151920A CN201911421607.6A CN201911421607A CN111151920A CN 111151920 A CN111151920 A CN 111151920A CN 201911421607 A CN201911421607 A CN 201911421607A CN 111151920 A CN111151920 A CN 111151920A
- Authority
- CN
- China
- Prior art keywords
- percent
- equal
- less
- hot
- steel ingot
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
The invention provides a 3425LC solder strip and a production process thereof, wherein the solder strip comprises the following chemical components in percentage by weight: less than or equal to 0.04 percent of C, 0.25 to 0.45 percent of Si, 1.9 to 2.2 percent of Mn, less than or equal to 0.024 percent of P, less than or equal to 0.016 percent of S, 0.95 to 1.3 percent of Nb, less than or equal to 0.2 percent of Ti, 18.8 to 20.5 percent of Cr, less than or equal to 0.2 percent of Cu, 9.2 to 10.5 percent of Ni, less than or equal to 0.2 percent of Mo, and the balance of iron. By optimizing the alloy components and the manufacturing process, the invention can improve the high-temperature plasticity crack resistance and the intercrystalline corrosion resistance of the surfacing metal, thereby realizing stable welding and obtaining a welding layer with excellent comprehensive performance.
Description
Technical Field
The invention relates to the technical field of welding materials, in particular to a 3425LC welding strip and a production process thereof.
Background
Along with the rapid development of petrochemical industry and nuclear power technology, the requirement on materials for pressure containers of some large-scale equipment is higher and higher, and a stainless steel lining is usually required to be surfacing-welded in a large area so as to meet the quality requirements of corrosion resistance, high temperature resistance and the like. However, for large-area bead welding, manual arc welding and wire-level bead welding are inefficient, and welding defects are easily generated at the joint of the bead welding layer and the base metal of the base layer and inside the metal of the bead welding layer, thereby affecting the service life of the pressure vessel.
However, the general nickel-based alloy is difficult to meet the use conditions, and the main difficulty is that the nickel-based alloy has high sensitivity to thermal cracks and is difficult to control micro cracks such as high-temperature plastic loss cracks, crystal cracks, stress corrosion cracks and the like.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a 3425LC solder strip and a production process thereof, wherein alloy components and a manufacturing process are optimized, so that the solder strip has excellent mechanical property and corrosion resistance. Such as good room temperature toughness, excellent resistance to pitting corrosion, crevice corrosion, stress corrosion, and intergranular corrosion before and after welding, and thereby can achieve stable welding and obtain a weld layer having excellent overall properties.
In order to achieve the purpose, the invention provides a 3425LC solder strip, which comprises the following chemical components in percentage by weight: less than or equal to 0.04 percent of C, 0.25 to 0.45 percent of Si, 1.9 to 2.2 percent of Mn, less than or equal to 0.024 percent of P, less than or equal to 0.016 percent of S, 0.95 to 1.3 percent of Nb, less than or equal to 0.2 percent of Ti, 18.8 to 20.5 percent of Cr, less than or equal to 0.2 percent of Cu, 9.2 to 10.5 percent of Ni, less than or equal to 0.2 percent of Mo, and the balance of iron.
As an optional technical scheme, the solder strip comprises the following chemical components in percentage by weight: 0.02-0.04% of C, 0.25-0.45% of Si, 1.9-2.2% of Mn, less than or equal to 0.024% of P, less than or equal to 0.016% of S, 0.95-1.3% of Nb, less than or equal to 0.1% of Ti, 18.8-20.5% of Cr, less than or equal to 0.1% of Cu, 9.2-10.5% of Ni and the balance of iron.
As an optional technical scheme, the solder strip comprises the following chemical components in percentage by weight: 0.03 percent of C, 0.3 percent of Si, 2.0 percent of Mn, less than or equal to 0.024 percent of P, less than or equal to 0.016 percent of S, 1.0 percent of Nb, 0.08 percent of Ti, 19.0 percent of Cr, 0.05 percent of Cu, 9.5 percent of Ni and the balance of iron.
The invention also provides a production process for preparing the 3425LC solder strip, which comprises the following steps:
(1) preparing materials: proportioning according to the designed components, and strictly baking all materials, casting refractory and deoxidizer to ensure that the materials are free of oil and impurities and the surface is polished or polished;
(2) smelting in an induction furnace: mixing with a new material, wherein the addition of rare earth is 0.1%, and the addition of B-Fe is 0.1%; Si-Ca is adopted for deoxidation and slagging, Al is adopted for final deoxidation, and a steel ingot is formed by pouring;
(3) grinding: the steel ingot is forged into a steel ingot with specified size through hot grinding, the surface of the steel ingot has no defects of folding and flashing, and the surface of the steel ingot is polished to be bright and has no visible defect;
(4) hot rolling: hot rolling the steel ingot to form a hot-rolled band with the thickness of 3.5 x 215mm, and curling the hot-rolled band to form a rolled band, wherein the hot-rolled heating temperature is 1150-1200 ℃;
(5) and (3) heat treatment: the temperature of the solid solution heat treatment is 1050-;
(6) cold rolling: measuring the thickness, performing finish rolling according to the following passes of 3.5mm → 1.6mm → 0.7 mm, and then shearing the cold-rolled finished product strip into a finished product;
(7) and (4) checking: including its size, flaw detection, chemical analysis, surface quality, identification, packaging.
As an optional technical scheme, in the step (2), feeding is performed during ingot casting, and a riser part is cut off before hot rolling.
As an optional technical scheme, the steel ingot is 150Kg in specification.
Compared with the prior art, the welding strip disclosed by the invention has the advantages that the contents of various key elements such as Cr, Mn, Mo, C, N, Nb, Mn and Ni and various processing technological parameters are reasonably controlled, such as the contents of C, Si, P and S are lower, the contents of Cr, Nb and Ni are higher, the higher content of Mn and the proper content of Nb are added into the welding strip, the crystallization crack sensitivity and the high-temperature plasticity loss crack sensitivity of the welding strip are reduced, the high-temperature plasticity loss crack resistance of the surfacing deposited metal is obviously improved, the surfacing deposited metal has stronger crystallization crack resistance and stress corrosion crack resistance, and the surfacing deposited metal has excellent corrosion resistance and excellent comprehensive mechanical properties. In addition, because the bonding force between Nb and C is stronger than that between Cr and Nb, the content of Cr and Ni can be reduced to a certain extent, the intergranular corrosion resistance of the alloy can be enhanced, and the cost can be reduced.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
The invention provides a 3425LC solder strip, which comprises the following chemical components in percentage by weight: less than or equal to 0.04% of C, 0.25-0.45% of Si, 1.9-2.2% of Mn, less than or equal to 0.024% of P, less than or equal to 0.016% of S, 0.95-1.3% of Nb, less than or equal to 0.2% of Ti, 18.8-20.5% of Cr, and less than or equal to 0.2% of Cu, wherein the solder strip preferably comprises the following components in percentage by weight: 0.02-0.04% of C, 0.25-0.45% of Si, 1.9-2.2% of Mn, less than or equal to 0.024% of P, less than or equal to 0.016% of S, 0.95-1.3% of Nb, less than or equal to 0.1% of Ti, 18.8-20.5% of Cr, 0.1% of Cu, 9.2-10.5% of Ni and the balance of iron. Preferably, the solder strip comprises the following chemical components in percentage by weight: 0.03 percent of C, 0.3 percent of Si, 2.0 percent of Mn, less than or equal to 0.024 percent of P, less than or equal to 0.016 percent of S, 1.0 percent of Nb, 0.08 percent of Ti, 19.0 percent of Cr, 0.05 percent of Cu, 9.5 percent of Ni and the balance of iron.
In addition, the invention provides a production process of 3425LC solder strips, which comprises the following steps:
(1) preparing materials: proportioning according to the designed components, strictly baking all materials, casting refractory materials and deoxidizing agents, making baking records, ensuring no oil and impurity, and polishing or grinding the surface;
(2) smelting in an induction furnace: mixing with a new material, wherein the addition of rare earth is 0.1%, and the addition of B-Fe is 0.1%; Si-Ca is adopted for deoxidation and slagging, Al is adopted for final deoxidation, and 150Kg of flat steel ingot is formed by pouring; feeding is noticed during steel ingot casting, and a riser used by feeding is cut off before subsequent hot rolling;
(3) grinding: the steel ingot is forged into a steel ingot with specified size through hot grinding, the surface of the steel ingot has no defects of folding and flashing, and the surface of the steel ingot is polished to be bright and has no visible defect;
(4) hot rolling: hot rolling the steel ingot to form a hot-rolled band with the thickness of 3.5 x 215mm, and curling the hot-rolled band to form a rolled band, wherein the hot-rolled heating temperature is 1150-1200 ℃;
(5) and (3) heat treatment: the temperature of the solid solution heat treatment is 1050-;
(6) cold rolling: measuring the thickness, performing finish rolling according to the following passes of 3.5mm → 1.6mm → 0.7 mm, and then shearing the cold-rolled finished product strip into a finished product; namely, multi-pass rolling is adopted, and the thickness of the rolled steel is 1.6mm and 0.7 mm respectively after each time of rolling;
(7) and (4) checking: including its size, flaw detection, chemical analysis, surface quality, identification, packaging.
The main elements in the solder strip have the following functions:
(1) c: the solid solution strengthening element can improve the strength of the austenitic stainless steel welding seam. However, as the content increases, carbides begin to precipitate in the weld metal, reducing the corrosion resistance of the weld. Therefore, the content of C should be less than or equal to 0.04%.
(2) Si: an oxidation film is formed on the surface of the welding seam, so that the oxidation resistance of the welding seam at high temperature is improved, and the welding seam is also a good deoxidizer and can increase the fluidity of slag and molten metal. However, the eutectic composition is segregated during solidification to form a low melting point eutectic composition, and particularly, when the eutectic composition is combined with Ni, the amount of Si in the solder strip is controlled to be 0.25 to 0.45%.
(3) Mn: the Mn can increase the interface energy of solid-liquid phases, reduce the formation of a grain boundary liquid film and reduce the sensitivity of thermal cracking in the crystallization process, thereby alleviating the harmful effect of S, P impurity elements. The addition of Mn can also affect the basic solid solubility, the formation, amount of inclusions, the liquefaction temperature of the low melting phase, etc.
(4) P, S: harmful elements such as P, S and the like can increase the sensitivity of hot cracks of the surfacing metal, cause embrittlement of crystal boundaries and increase the DDC sensitivity.
(5) Nb: on one hand, the addition of the Nb element can enhance the intergranular corrosion resistance of the alloy, so that the bonding force of Nb and C is stronger compared with Cr. On the other hand, the welding strip has higher contents of Mn and Nb elements, the capability of resisting high-temperature plasticity-loss cracks of the surfacing metal is greatly improved on the basis of improving NiCrFe alloy, the strength of submerged arc surfacing and electroslag surfacing can be ensured to meet the technical index requirements, meanwhile, the stable welding process can be realized, and the surfacing layer with high welding quality and excellent comprehensive performance can be obtained. However, the addition of Nb increases the crystal interval of the alloy and increases the crystal crack sensitivity of the alloy. Therefore, the amount of Nb is controlled to 0.95 to 1.3%. However, in the present invention, since an appropriate amount of Nb is contained, the contents of Cr and Ni can be reduced to some extent, and not only the intergranular corrosion resistance of the alloy can be enhanced, but also the cost can be reduced.
(6) Ti: the deoxidizing element, the Ti element, has a stronger chemical affinity with the C, N element than the Cr element, and thus can react with the C, N element in a large amount under high temperature conditions to form a stable compound, thereby preventing a local content decrease of the Cr element due to the generation of Cr (C, N) and a decrease in corrosion resistance. However, excessive addition of Ti element causes deterioration of the surface quality of ferritic stainless steel, and therefore Ti element should be added in a proper ratio on the premise of satisfying the performance requirements.
(7) The Cr influences the key factors of the load stress corrosion, and the increase of the Cr element content in the stainless steel can obviously improve various corrosion resistance properties of the material, including pitting corrosion property, crevice corrosion property, stress corrosion property, intercrystalline corrosion property and the like. However, the addition of excessive Cr causes an increase in the cost of raw materials and also causes great difficulty in the production process of stainless steel, and the excessive Cr causes a large amount of intermetallic compound precipitates to be generated in different temperature ranges, which seriously deteriorates the room temperature mechanical properties and corrosion resistance of ferritic stainless steel, so that the Cr content must be controlled within a reasonable range.
(8) Cu: copper is an important element for improving the corrosion resistance, and a buffer surface protection layer can be formed by alloy design matched with Cu and Cr, so that the hydrogen permeability is obviously reduced, and the acid corrosion resistance of metal is improved. Cu is an element for expanding an austenite phase region, does not form carbide with carbon, has a solid solution strengthening effect similar to that of Ni, can replace a part of Ni, can remarkably improve the yield ratio of steel, and can remarkably improve the yield strength of the steel through the precipitation strengthening and precipitation strengthening effects of Cu.
(9) Ni: ni and other elements form an austenite crystal lattice, do not generate phase change at high temperature and have good stability at high temperature. Ni is an austenitizing element, can provide good comprehensive performance, has good stability, can form a solid solution with Cr at high temperature, has higher high-temperature strength, has high plasticity at normal temperature, and has good processing property.
(10) Mo: the corrosion resistance of Mo element is three times of that of Cr element, and the existence of Mo element greatly improves various corrosion resistance of ferritic stainless steel. However, since the Mo element is expensive, the addition of a large amount of Mo element in ferritic stainless steel greatly increases the cost of raw materials, and thus the content of Mo element must be strictly controlled.
The present invention will be further described with reference to the following specific examples.
Table 1 below shows the specific elemental compositions and the weight percentage contents of each component of three examples of the present invention.
TABLE 1 detailed elemental composition and weight percent content of each component of three examples of the invention
Unit: weight percent (%)
Remarking: the balance being Fe and unavoidable impurities, not listed in Table 1.
The production process of the 3425LC solder strip of each embodiment of the invention adopts the following steps:
(1) preparing materials: proportioning according to the designed components, strictly baking all materials, casting refractory materials and deoxidizing agents, making baking records, ensuring no oil and impurity, and polishing or grinding the surface;
(2) smelting in an induction furnace: mixing with a new material, wherein the addition of rare earth is 0.1%, and the addition of B-Fe is 0.1%; Si-Ca is adopted for deoxidation and slagging, Al is adopted for final deoxidation, and 150Kg of flat steel ingot is formed by pouring; feeding is noticed during steel ingot casting, and a riser used by feeding is cut off before subsequent hot rolling;
(3) grinding: the steel ingot is forged into a steel ingot with specified size through hot grinding, the surface of the steel ingot has no defects of folding and flashing, and the surface of the steel ingot is polished to be bright and has no visible defect;
(4) hot rolling: hot rolling the steel ingot to form a hot-rolled band with the thickness of 3.5 x 215mm, and curling the hot-rolled band to form a rolled band, wherein the hot-rolled heating temperature is 1150-1200 ℃;
(5) and (3) heat treatment: the temperature of the solid solution heat treatment is 1050-;
(6) cold rolling: measuring the thickness, performing finish rolling according to the following passes of 3.5mm → 1.6mm → 0.7 mm, and then shearing the cold-rolled finished product strip into a finished product; namely, multi-pass rolling is adopted, and the thickness of the rolled steel is 1.6mm and 0.7 mm respectively after each time of rolling;
(7) and (4) checking: including its size, flaw detection, chemical analysis, surface quality, marking and packaging, the finished product 3425LC solder strip size is 0.7 mm x 35 mm.
Wherein, the solder strip of the different embodiments shows: the surface is smooth, and harmful defects such as buckling, scaling, air bubbles, air holes, scratches, cracks, inclusions and the like do not exist.
Furthermore, welding was performed on steel 40mm thick using an electroslag process. The welding current is 1000-1050A, the magnetic control current is 2.5A, the welding voltage is 26V, and the welding speed is 180 mm/min. And the mechanical properties of the surfacing layers formed in different embodiments are detected, wherein the detection result shows that the tensile strength of the surfacing layers can meet the requirements of being more than 570MPa, the yield strength is more than 320 MPa, and the reduction of area is more than 52%.
In conclusion, the welding strip provided by the invention reasonably controls the contents of various key elements such as Cr, Mn, Mo, C, N, Nb, Mn and Ni and various processing technological parameters, such as lower contents of C, Si, P and S, higher contents of Cr, Nb and Ni, and higher content of Mn and proper content of Nb added in the welding strip, so that the crystallization crack sensitivity and high-temperature plasticity loss crack sensitivity of the welding strip are reduced, the high-temperature plasticity loss crack resistance of the surfacing deposited metal is obviously improved, and the surfacing deposited metal has stronger crystallization crack resistance and stress corrosion crack resistance, excellent corrosion resistance and excellent comprehensive mechanical properties. In addition, because the bonding force between Nb and C is stronger than that between Cr and Nb, the content of Cr and Ni can be reduced to a certain extent, the intergranular corrosion resistance of the alloy can be enhanced, and the cost can be reduced.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (6)
1. The 3425LC solder strip is characterized by comprising the following chemical components in percentage by weight: less than or equal to 0.04 percent of C, 0.25 to 0.45 percent of Si, 1.9 to 2.2 percent of Mn, less than or equal to 0.024 percent of P, less than or equal to 0.016 percent of S, 0.95 to 1.3 percent of Nb, less than or equal to 0.2 percent of Ti, 18.8 to 20.5 percent of Cr, less than or equal to 0.2 percent of Cu, 9.2 to 10.5 percent of Ni, less than or equal to 0.2 percent of Mo, and the balance of iron.
2. The 3425LC solder strip according to claim 1, wherein the solder strip comprises the following chemical components in percentage by weight: 0.02-0.04% of C, 0.25-0.45% of Si, 1.9-2.2% of Mn, less than or equal to 0.024% of P, less than or equal to 0.016% of S, 0.95-1.3% of Nb, less than or equal to 0.1% of Ti, 18.8-20.5% of Cr, less than or equal to 0.1% of Cu, 9.2-10.5% of Ni and the balance of iron.
3. The 3425LC solder strip according to claim 2, wherein the solder strip comprises the following chemical components in percentage by weight: 0.03 percent of C, 0.3 percent of Si, 2.0 percent of Mn, less than or equal to 0.024 percent of P, less than or equal to 0.016 percent of S, 1.0 percent of Nb, 0.08 percent of Ti, 19.0 percent of Cr, 0.05 percent of Cu, 9.5 percent of Ni and the balance of iron.
4. A process for manufacturing the 3425LC solder ribbon of any one of claims 1-3, wherein the process comprises the steps of:
(1) preparing materials: proportioning according to the designed components, and strictly baking all materials, casting refractory and deoxidizer to ensure that the materials are free of oil and impurities and the surface is polished or polished;
(2) smelting in an induction furnace: mixing with a new material, wherein the addition of rare earth is 0.1%, and the addition of B-Fe is 0.1%; Si-Ca is adopted for deoxidation and slagging, Al is adopted for final deoxidation, and a steel ingot is formed by pouring;
(3) grinding: the steel ingot is forged into a steel ingot with specified size through hot grinding, the surface of the steel ingot has no defects of folding and flashing, and the surface of the steel ingot is polished to be bright and has no visible defect;
(4) hot rolling: hot rolling the steel ingot to form a hot-rolled band with the thickness of 3.5 x 215mm, and curling the hot-rolled band to form a rolled band, wherein the hot-rolled heating temperature is 1150-1200 ℃;
(5) and (3) heat treatment: the temperature of the solid solution heat treatment is 1050-;
(6) cold rolling: measuring the thickness, performing finish rolling according to the following passes of 3.5mm → 1.6mm → 0.7 mm, and then shearing the cold-rolled finished product strip into a finished product;
(7) and (4) checking: including its size, flaw detection, chemical analysis, surface quality, identification, packaging.
5. The process for producing a 3425LC welding strip according to claim 4, wherein in the step (2), the ingot is fed while the ingot is cast, and the riser part is cut off before hot rolling.
6. The process for producing the 3425LC solder strip of claim 4, wherein the ingot size is 150 Kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911421607.6A CN111151920A (en) | 2019-12-31 | 2019-12-31 | 3425LC welding strip and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911421607.6A CN111151920A (en) | 2019-12-31 | 2019-12-31 | 3425LC welding strip and production process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111151920A true CN111151920A (en) | 2020-05-15 |
Family
ID=70560623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911421607.6A Pending CN111151920A (en) | 2019-12-31 | 2019-12-31 | 3425LC welding strip and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111151920A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111876653A (en) * | 2020-07-27 | 2020-11-03 | 四川六合特种金属材料股份有限公司 | Preparation method of pure austenitic stainless steel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5519468A (en) * | 1978-07-31 | 1980-02-12 | Kawasaki Steel Corp | Band build-up welding liner of nb-contained austenite base stainless steel |
| WO2004079018A2 (en) * | 2003-03-05 | 2004-09-16 | Dt Vyhybkárna A Mostárna A.S. | Adapter of chrome-nickel steel for weld connections and the method of its welding |
| CN101505910A (en) * | 2006-08-09 | 2009-08-12 | Ing商事株式会社 | Iron-based corrosion resistant wear resistant alloy and deposit welding material for obtaining the alloy |
| CN109280846A (en) * | 2018-07-02 | 2019-01-29 | 江苏新华合金电器有限公司 | 0Cr25Al5B electrothermal alloy and its manufacturing process |
| CN110195169A (en) * | 2019-06-17 | 2019-09-03 | 无锡日月合金材料有限公司 | A kind of copper-based anti-oxidant medium temperature alloy sealing solder |
-
2019
- 2019-12-31 CN CN201911421607.6A patent/CN111151920A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5519468A (en) * | 1978-07-31 | 1980-02-12 | Kawasaki Steel Corp | Band build-up welding liner of nb-contained austenite base stainless steel |
| WO2004079018A2 (en) * | 2003-03-05 | 2004-09-16 | Dt Vyhybkárna A Mostárna A.S. | Adapter of chrome-nickel steel for weld connections and the method of its welding |
| CN101505910A (en) * | 2006-08-09 | 2009-08-12 | Ing商事株式会社 | Iron-based corrosion resistant wear resistant alloy and deposit welding material for obtaining the alloy |
| CN109280846A (en) * | 2018-07-02 | 2019-01-29 | 江苏新华合金电器有限公司 | 0Cr25Al5B electrothermal alloy and its manufacturing process |
| CN110195169A (en) * | 2019-06-17 | 2019-09-03 | 无锡日月合金材料有限公司 | A kind of copper-based anti-oxidant medium temperature alloy sealing solder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111876653A (en) * | 2020-07-27 | 2020-11-03 | 四川六合特种金属材料股份有限公司 | Preparation method of pure austenitic stainless steel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5817832B2 (en) | High tensile strength steel sheet with excellent low temperature toughness of weld heat affected zone and method for producing the same | |
| KR102055039B1 (en) | High tensile strength steel plate having excellent weld heat-affected zone low-temperature toughness and method for producing same | |
| CN106541222B (en) | High-temperature high-strength nuclear power nickel-based welding wire without crack defects and preparation and application thereof | |
| WO2015088040A1 (en) | Steel sheet and method for manufacturing same | |
| CN105215576A (en) | A kind of nickel-base strip pole submerged arc overlay welding sintered flux and manufacture method | |
| CN111996460B (en) | 500 MPa-grade weather-resistant bridge steel with-40 ℃ impact energy of not less than 54J in welding heat affected zone | |
| JP6978614B2 (en) | Solid wire for gas metal arc welding and gas metal arc welding method | |
| CN102605288B (en) | Economical double-phase stainless steel with good welding property and manufacturing method for stainless steel | |
| WO2020203334A1 (en) | Filler material for tig welding use | |
| JP6245352B2 (en) | High-tensile steel plate and manufacturing method thereof | |
| CN113319469A (en) | High-strength heat-resistant steel gas shielded welding wire and preparation method thereof | |
| CN112621021A (en) | H0Cr19Ni24Mn7Mo6VN welding wire and preparation method thereof | |
| CN113579558A (en) | Nuclear-grade nickel-chromium-iron alloy welding core and manufacturing method thereof | |
| JP5708349B2 (en) | Steel with excellent weld heat affected zone toughness | |
| CN111151920A (en) | 3425LC welding strip and production process thereof | |
| CN112605557A (en) | HGH1131 welding wire and preparation method thereof | |
| CN110977246A (en) | H00Cr12Ni9Mo2Si welding wire and production process thereof | |
| JP2015155116A (en) | Thickness increasing method for weld stainless steel | |
| CN112621022A (en) | ERNiCrMo-11 welding wire and preparation method thereof | |
| JP5741454B2 (en) | Ni-added steel sheet excellent in toughness and productivity in which Charpy test value at −196 ° C. is 100 J or more for both base metal and welded joint, and manufacturing method thereof | |
| CN111074138A (en) | 3944 solder strip and production process thereof | |
| JP6226163B2 (en) | High-tensile steel plate with excellent low-temperature toughness in heat affected zone and its manufacturing method | |
| JP6299676B2 (en) | High-tensile steel plate and manufacturing method thereof | |
| JP6747032B2 (en) | Thick steel plate | |
| CN113366138A (en) | Method for manufacturing high manganese steel cast sheet, high manganese steel sheet, and method for manufacturing high manganese steel sheet |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200515 |
|
| WD01 | Invention patent application deemed withdrawn after publication |