CN102528319A - High-strength high-ductility submerged-arc welding wire - Google Patents
High-strength high-ductility submerged-arc welding wire Download PDFInfo
- Publication number
- CN102528319A CN102528319A CN2010105999023A CN201010599902A CN102528319A CN 102528319 A CN102528319 A CN 102528319A CN 2010105999023 A CN2010105999023 A CN 2010105999023A CN 201010599902 A CN201010599902 A CN 201010599902A CN 102528319 A CN102528319 A CN 102528319A
- Authority
- CN
- China
- Prior art keywords
- welding wire
- submerged
- arc welding
- strength
- equal
- 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
Abstract
A high-strength high-ductility submerged-arc welding wire belongs to the field of welding materials and is particularly applicable to welding for Q690-grade steel. The high-strength high-ductility submerged-arc welding wire is characterized in that chemical components of the welding wire (wt%) include less than or equal to 0.12% of C (carbon), 1.40-1.90% of Mn (manganese), 0.20-0.60% of Si (silicon), less than or equal to 0.015% of S (sulfur), less than or equal to 0.020% of P (phosphorus), less than or equal to 0.60% of Cr (chromium), 1.80-2.80% of Ni (nickel), 0.25-0.65% of Mo (molybdenum), less than or equal to 0.25% of Cu (copper), proper added Ti (titanium) and the balance Fe (ferrum). Compared with the prior art, the submerged-arc welding wire is simple and reasonable in component design, is matched with an SJ606 flux deposited metal and has excellent comprehensive performances, the tensile strength of the submerged-arc welding wire is higher than 760MPa, the yield strength of the submerged-arc welding wire is higher than 690MPa, and impacting energy at the temperature of -40 DEG C is higher than 69J.
Description
Technical field
The invention belongs to field of welding material.Be applicable to the welding of Q690 level steel, have high yield strength, tensile strength and have excellent low-temperature impact toughness.
Background technology
Along with structural steel develops to the high intensity levels direction, Q690 intensity rank Hi-Stren steel is in the applied more and more in fields such as engineering machinery, harbour machinery, ocean engineering.Require weld seam to have high yield strength, tensile strength and excellent low-temperature flexibility simultaneously based on the steel construction safety factor; But will require to alleviate equipment self weight simultaneously, so Hi-Stren steel is by increasing steel construction, the engineering machinery manufacturing field of being applied to.The welding material of steel construction, the employing of engineering machine manufacturing enterprise can only satisfy the welding of Q490, Q590 intensity rank low-alloy steel in the past, along with the application of Q690 intensity rank low-alloy high-strength is more and more many, was badly in need of the welding wire for submerged-arc welding of a kind of high-intensity high-tenacity of exploitation.Welding wire for submerged-arc welding of the present invention has the characteristics of high strength, high tenacity.
Summary of the invention
It is reasonable in design to the objective of the invention is to propose a kind of composition, has the welding wire for submerged-arc welding of high strength, high impact toughness.According to the object of the invention, the chemical analysis (weight %) of the composition high strength that we proposed, high-ductility submerged arc welding wire is: C≤0.12%; Mn 1.40-1.90%; Si 0.20-0.60%; S≤0.015%; P≤0.020%; Cr≤0.60%; Ni 1.80-2.80%; Mo0.25-0.65%; Cu≤0.25%; Add an amount of Ti, B trace element in addition, all the other are Fe.In welding wire for submerged-arc welding chemical analysis of the present invention; We narrate respectively as follows the qualification reason of each chemical element: in the composition of welding wire for submerged-arc welding of the present invention; Carbon has the effect that improves deposited metal intensity; To reducing its toughness and cracking resistance tangible effect is arranged all simultaneously, for improving toughness and improving cracking resistance, the content of carbon should hang down as far as possible.But carbon has bigger scaling loss in the submerged arc welding process, thus for guaranteeing suitable intensity and reduce carbon as far as possible to the influence of toughness and cracking resistance, carbon content is limited in≤0.12%.Adding manganese in the present invention is because it has good deoxidation and desulfurization, can effectively improve the intensity of deposited metal simultaneously, and when manganese content was lower than 1% in the deposited metal, deposited metal intensity did not reach requirement, was unfavorable for preventing simultaneously the generation of HOT CRACK FOR WELDING P yet; When deposited metal manganese content greater than 1.6% the time; Toughness can reduce. consider the factor of the big scaling loss of welding wire for submerged-arc welding welding process manganese element scaling loss; Therefore manganese content is limited in 1.4-1.9% in the wire composition; To guarantee that manganese content is given full play to the effect that manganese improves intensity and improves crack resistance in the 1-1.6% scope in when welding deposited metal. silicon is effective deoxidant element in the welding process, when silicone content in the deposited metal less than 0.1% the time; Deoxidation fully makes weld seam produce weld defects such as pore; When silicone content in the deposited metal surpassed 0.6%, then the low-temperature flexibility of butt welded seam had infringement, so silicone content is limited in 0.2-0.6% in wire composition; To guarantee that silicone content is controlled at the 0.1-0.6% scope in the deposited metal. in wire composition of the present invention, add the toughness that nickel can improve deposited metal through the crystal grain of refinement a phase, reduce its brittle transition temperature, when content less than 1.8% the time; Low-temperature impact work can not reach the requirement of high strength steel, but nickel content is greater than 3.8% o'clock, and fire check sensitiveness then can increase; Therefore to be limited in 1.8-2.8%. chromium be carbide former to welding wire nickel content; To improving intensity obvious effect is arranged, but low-temperature flexibility is also had tangible harmful effect, will obtain desirable low-temperature flexibility because of drawing; Therefore welding wire chromium content should be controlled at below 0.6%. and molybdenum does not have tangible harmful effect to low-temperature flexibility when improving intensity; But molybdenum content is higher than at 1.2% o'clock, can be therefore unfavorable to the toughness of material, for reaching desired intensity; It is strong deoxidant element that welding wire molybdenum content is controlled at the 0.25-0.65%. titanium; It and nitrogen have very strong affinity, and formed TiN particle can be used as nucleus, promote the generation of acicular ferrite; Has the effect that thinning microstructure improves toughness; Therefore adding an amount of titanium in the welding wire. copper is mainly as increasing welding wire rust-preventing characteristic and electric conductivity in the present invention, is limited in≤sulphur, the phosphorus of 0.25%. in welding wire of the present invention all belongs to the element that the toughness of deposited metal is had very big harm, should reduce as far as possible. and all the other are iron. and high strength of the present invention, high-toughness welding wire manufacturing technology are identical with prior art.Smelt and cast steel ingot by the alloy composition of welding wire of the present invention, copper facing polishing behind the welding wire that forges, rolls wire rod, hot candied one-tenth corresponding size again, last bundling is packaged into product.
Adopt welding wire of the present invention have the composition simplicity of design, rationally, cost is low; Cooperate the welding of SJ606 solder flux; Can obtain the weld seam of high strength, high tenacity; Through facts have proved that welding wire of the present invention welds under 17-20KJ/cm heat input condition, deposited metal has good comprehensive mechanical property, and its tensile strength is greater than 760MPa; Yield strength is greater than 690MPa; At-40 ℃ ballistic works greater than 69J.
The specific embodiment
Adopt the welding wire for submerged-arc welding of the embodiment of the invention, have the deposited metal of good comprehensive mechanical property when obtaining through cooperate welding with the SJ606 solder flux.We provide 6.5mm gren rod by the wire composition requirement steel mill that sets; The 4.0mm welding wire for submerged-arc welding is processed through drawing copper facing at last by my company. and the preparation that the welding wire chemical analysis is all listed table 1. welding wire in is under existing equipment and technical conditions, to process. and welding uses test plate (panel) to be Q690, and thickness is 20mm; Bevel for welding size, sample position and test method etc. are all carried out by GB GB/T 12470.Result of the test is all listed table 2 in.
Table 1
| Numbering | C | Mn | Si | Cr | Ni | Mo | S | P |
| 1 | 0.062 | 1.83 | 0.545 | 0.451 | 2.34 | 0.515 | 0.003 | 0.011 |
| 2 | 0.065 | 1.85 | 0.543 | 0.454 | 2.37 | 0.517 | 0.003 | 0.012 |
| 3 | 0.060 | 1.85 | 0.543 | 0.454 | 2.36 | 0.518 | 0.003 | 0.011 |
Table 2
Can reach a conclusion from the embodiment of the invention: the deposited metal of product of the present invention has excellent comprehensive performances, has the characteristics of high strength, high tenacity.
Claims (2)
1. one kind has the high-strength and high-toughness submerged-arc welding electrode that is applicable to Q690 rank steel welding, it is characterized in that: the deposited metal yield strength, tensile strength is high and have excellent low-temperature flexibility.
2. high-strength and high-toughness submerged-arc welding electrode according to claim 1, the chemical analysis (weight %) that it is characterized in that forming this welding wire is: C≤0.12%; Mn 1.40-1.90%; Si 0.20-0.60%; S≤0.015%; P≤0.020%; Cr≤0.60%; Ni 1.80-2.80%; Mo0.25-0.65%; Cu≤0.25%; Add an amount of Ti trace element in addition, all the other are Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105999023A CN102528319A (en) | 2010-12-20 | 2010-12-20 | High-strength high-ductility submerged-arc welding wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105999023A CN102528319A (en) | 2010-12-20 | 2010-12-20 | High-strength high-ductility submerged-arc welding wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102528319A true CN102528319A (en) | 2012-07-04 |
Family
ID=46337021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105999023A Pending CN102528319A (en) | 2010-12-20 | 2010-12-20 | High-strength high-ductility submerged-arc welding wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102528319A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008918A (en) * | 2012-12-17 | 2013-04-03 | 四川大西洋焊接材料股份有限公司 | Submerged-arc welding flux for high-strength steel with strength not smaller than 780MPa, manufacture method and welding wire |
| CN104227264A (en) * | 2013-06-21 | 2014-12-24 | 日铁住金溶接工业株式会社 | Solid welding stick for gas-shielded arc welding of high-strength steel |
| JP2015110241A (en) * | 2013-10-31 | 2015-06-18 | 株式会社神戸製鋼所 | Solid wire for submerged arc welding |
| CN104955608A (en) * | 2013-01-11 | 2015-09-30 | 株式会社神户制钢所 | Welded metal with excellent resistance to hydrogen embrittlement, and solid wire for submerged arc welding |
| CN105772984A (en) * | 2016-03-23 | 2016-07-20 | 中国电建集团上海能源装备有限公司 | Cr-controlled low-alloy steel argon tungsten arc welding wire with excellent low-temperature toughness |
| CN106001990A (en) * | 2016-06-27 | 2016-10-12 | 武汉科技大学 | High strength and toughness submerged arc welding wire of high-strength steel for ocean platform and weld metal prepared through welding wire |
| CN107234365A (en) * | 2017-06-16 | 2017-10-10 | 上海大西洋焊接材料有限责任公司 | It is a kind of to be used for the welding material used for submerged arc welding of extra large work rack steel Q690 welding |
| CN108747084A (en) * | 2018-08-14 | 2018-11-06 | 四川西冶新材料股份有限公司 | A kind of welding wire for submerged-arc welding and preparation method thereof |
| CN109048117A (en) * | 2018-07-26 | 2018-12-21 | 钢铁研究总院 | Antidetonation is anti-corrosion 690MPa grades of welding wire for submerged-arc welding of fire-resistive construction structural steel |
| CN109202329A (en) * | 2017-07-05 | 2019-01-15 | 昆山中冶宝钢焊接材料有限公司 | A kind of 690MPa grades of welding wire for submerged-arc welding of yield strength meeting -60 DEG C of requirements |
-
2010
- 2010-12-20 CN CN2010105999023A patent/CN102528319A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008918A (en) * | 2012-12-17 | 2013-04-03 | 四川大西洋焊接材料股份有限公司 | Submerged-arc welding flux for high-strength steel with strength not smaller than 780MPa, manufacture method and welding wire |
| CN104955608A (en) * | 2013-01-11 | 2015-09-30 | 株式会社神户制钢所 | Welded metal with excellent resistance to hydrogen embrittlement, and solid wire for submerged arc welding |
| RU2618036C2 (en) * | 2013-01-11 | 2017-05-02 | Кабусики Кайся Кобе Сейко Се (Кобе Стил, Лтд.) | Weld metal with increased resistance to hydrogen embrittlement and solid section wire for submerged arc welding |
| CN104227264A (en) * | 2013-06-21 | 2014-12-24 | 日铁住金溶接工业株式会社 | Solid welding stick for gas-shielded arc welding of high-strength steel |
| CN104227264B (en) * | 2013-06-21 | 2016-08-10 | 日铁住金溶接工业株式会社 | The surface treatment oil for solid wire for gas shielded arc welding of high strength steel |
| JP2015110241A (en) * | 2013-10-31 | 2015-06-18 | 株式会社神戸製鋼所 | Solid wire for submerged arc welding |
| CN105772984A (en) * | 2016-03-23 | 2016-07-20 | 中国电建集团上海能源装备有限公司 | Cr-controlled low-alloy steel argon tungsten arc welding wire with excellent low-temperature toughness |
| CN106001990A (en) * | 2016-06-27 | 2016-10-12 | 武汉科技大学 | High strength and toughness submerged arc welding wire of high-strength steel for ocean platform and weld metal prepared through welding wire |
| CN107234365A (en) * | 2017-06-16 | 2017-10-10 | 上海大西洋焊接材料有限责任公司 | It is a kind of to be used for the welding material used for submerged arc welding of extra large work rack steel Q690 welding |
| CN109202329A (en) * | 2017-07-05 | 2019-01-15 | 昆山中冶宝钢焊接材料有限公司 | A kind of 690MPa grades of welding wire for submerged-arc welding of yield strength meeting -60 DEG C of requirements |
| CN109048117A (en) * | 2018-07-26 | 2018-12-21 | 钢铁研究总院 | Antidetonation is anti-corrosion 690MPa grades of welding wire for submerged-arc welding of fire-resistive construction structural steel |
| CN108747084A (en) * | 2018-08-14 | 2018-11-06 | 四川西冶新材料股份有限公司 | A kind of welding wire for submerged-arc welding and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102528319A (en) | High-strength high-ductility submerged-arc welding wire | |
| CN101992365B (en) | High-strength and high-tenacity gas shielded welding wire | |
| CN101905391B (en) | Submerged arc welding wire of high tensile pipeline steel | |
| CN104493374A (en) | Austenitic stainless steel welding wire and welding technology thereof | |
| CN101722386B (en) | Gas shield welding wire with high strength and tenacity | |
| CN101234457A (en) | High-strength high ductility gas protecting welding stick | |
| CN101987403B (en) | 900MPa-level high-performance gas shielded welding wire | |
| WO2016082544A1 (en) | Super high strength gas protection welding wire containing v and manufacturing method therefor | |
| CN107138876B (en) | High-temperature creep resistant low-nickel copper-containing T/P92 steel welding material | |
| KR101629129B1 (en) | Base material for high-toughness clad steel plate and method for producing said clad steel plate | |
| CN109048119B (en) | Solid welding wire for 650 ℃ ultra-supercritical thermal power turbine steel casting | |
| CN101234459A (en) | 80 kilogram-scale low welding crack sensibility high-strength steel plate special-purpose welding stick | |
| CN104400254A (en) | Welding wire applicable to submerged-arc welding of H2S corrosion resistant ultralow manganese pipeline steel | |
| CN101905393B (en) | Solid welding wire for high-toughness structural steel | |
| CN109604863B (en) | High-toughness gas shielded welding wire | |
| CN101386962A (en) | Non-magnetic high-strength stainless steel and manufacturing method thereof | |
| CN110802344A (en) | 785 MPa-grade high-strength high-toughness consumable electrode active gas protection welding wire for ocean engineering and application thereof | |
| CN106271212A (en) | A kind of low temperature high-strength and high ductility welding wire for submerged-arc welding and application process | |
| JP6392376B2 (en) | Submerged arc welding wire | |
| CN103600178B (en) | A kind of high-strength weathering steel gas shield solid core welding wire | |
| CN104400253A (en) | Submerged-arc welding wire for constructing ocean platform | |
| CN102601543A (en) | Low-carbon submerged arc welding wire | |
| CN110385545B (en) | Welding wire steel for manual argon arc welding | |
| CN109014653B (en) | High-strength gas shielded welding wire capable of eliminating stress | |
| CN106944763B (en) | High-strength manganese-series wear-resistant steel welding wire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |