CN101407000A - Low-alloy heat-resistant steel submerged arc welding wire - Google Patents
Low-alloy heat-resistant steel submerged arc welding wire Download PDFInfo
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- CN101407000A CN101407000A CNA2008100465893A CN200810046589A CN101407000A CN 101407000 A CN101407000 A CN 101407000A CN A2008100465893 A CNA2008100465893 A CN A2008100465893A CN 200810046589 A CN200810046589 A CN 200810046589A CN 101407000 A CN101407000 A CN 101407000A
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Abstract
The invention relates to a low alloy heat-resisting steel submerged arc-welding wire, wherein the welding wire comprises the following components in weight percent: 0.05 to 016 of C, 0.40 to 1.00 of Mn, 0.05 to 0.35 of Si, less than and equal to 0.015 of S, less than and equal to 0.015 of P, less than and equal to 0.35 of Cu, 0.70 to 1.60 of Cr, less than and equal to 0.20 of Ni, 0.40 to 0.80 of Mo, less than and equal to 0.005 of V and the balance being Fe. Besides C, Si, Mn, S and P, the welding wire adopts a Cr-Mo alloy element heat-resisting system, the designed composition is simple, and the welding wire has the same strength, toughness and heat tolerance as the low alloy heat-resisting steel 12CrMo steel; the comprehensive performance of the deposited metal obtained by the welding wire is as follows: the yield strength is more than and equal to 485MPa, the tensile strength is more than and equal to 550MPa, and the elongation is more than and equal to 20 percent; and, the Akv at the temperature of 20 Celsius degrees below zero is more than and equal to 27J.
Description
Technical field
The invention belongs to field of welding material, particularly, relate to a kind of low-alloy heat-resistant steel submerged arc welding wire.
Background technology
" being applicable to the high-toughness welding wire of low-carbon micro steel-alloy " patent of existing welding wire for submerged-arc welding such as Chinese patent application number 02119591.9 disclosed University On The Mountain Of Swallows proposition.The chemical composition prescription of welding wire is as follows: C:0.01～0.12%, Si:0.10～0.40%, Mn:0.60～2.30%, Cr:0.01～0.22%, Mo:0.08～0.60%, V:0.004～0.06%, Cu:0.01～0.50%, Ni:0.01～0.60%, Al:0.01～0.06%, Nb:0.02～0.08%, Ti:0.01～0.20%, B:0.0001～0.01%, Re:0.001～0.5%.
This welding wire contains alloying elements such as Cu, Cr, Ni, Mo, Nb, V, Ti, B, Re.The composition design is comparatively complicated, mixed and disorderly, increases to smelt difficulty; Cost is also very high, and thermo-labile.
Summary of the invention
Technical problem to be solved by this invention provides a kind of low-alloy heat-resistant steel submerged arc welding wire, and this low-alloy heat-resistant steel submerged arc welding wire can solve the supporting welding wire for submerged-arc welding problem of 550 ℃ of operating temperatures and above station boiler, gas-turbine, high steam pipeline, petrochemical industry and the isostructural 12CrMo Mayari of nuclear power unit.
The present invention addresses the above problem the technical scheme that is adopted: a kind of low-alloy heat-resistant steel submerged arc welding wire, and its composition and mass percent are:
C 0.05～0.16，
Mn 0.40～1.00，
Si 0.05～0.35，
S ≤0.015，
P ≤0.015，
Cu ≤0.35，
Cr 0.70～1.60，
Ni ≤0.20，
Mo 0.40～0.80，
V ≤0.05，
Surplus is Fe.
Further, the preferable range of described Cr is 0.80～1.40%, and the preferable range of Mo is 0.45～0.65, and the preferable range of S, P is≤0.012%.
Welding wire of the present invention adopts the heat-resisting system of Cr-Mo alloying element except C, Si, Mn, S, P.Design mix is simple and clear, and can solve with Mayari 12CrMo steel etc. hear resistance such as tough such as strong.Low S, low P mainly are in order to guarantee that deposited metal has high plasticity and crack resistance in the welding wire for submerged-arc welding of the present invention.Add Cr, Mo and guarantee that deposited metal has better heat-resisting and high temperature microstructure stability, consider matching simultaneously with the mother metal composition.Main heat-resisting element Cr content only is 0.01～0.22% in 02119591.9 publication, the Mo element is minimum has only 0.08%.Need in structural carbon steel limit constituent contents such as its Cr, Mo, and in the chemical analysis of the various trade mark carbon constructional quality steels of GB699 standard code, Mo is a trace element wherein.Its limit of working temperature of structural carbon steel is 350 ℃, and the carbon steel strength character sharply descends along with the raising of operating temperature, and its alloy series of Mayari of the present invention is that Cr-Mo is that Cr, Mo constituent content are respectively up to 1.60% and 0.80%.Like this, contain higher Cr among the present invention, its operating ambient temperature of Mo alloying element can reach 550 ℃, has tangible heat resistance.Heat-resistant steel submerged arc welding wire adopts this chemical composition proportioning and is furnished with suitable solder flux, and making weld(ing) deposit one is to guarantee its good comprehensive mechanical properties; The 2nd, can guarantee on indexs such as chemical composition, physicochemical property, heat resistance, to make weld(ing) deposit and mother metal reach optimum Match.
The invention has the beneficial effects as follows:
1, chemical composition design of the present invention is easy, directly reach the high heat-resisting characteristic of high-strength and high ductility, welding wire gained deposited metal of the present invention and welding point have good high temperature resistant, high-voltage performance, under the certain high temperature condition, have to reduce in the long-term use embrittlement phenomenon takes place, has good comprehensive performances simultaneously, especially under high-temperature work environment.Can guarantee that gained deposited metal and welding point have enough creep strengths, creep rupture strength, rupture ductility and good high-temperature structure stability and hear resistance and good obdurability coupling have good welding technological properties simultaneously.
2, the combination property of welding wire gained deposited metal of the present invention is: yield strength 〉=485MPa, tensile strength 〉=550MPa, percentage elongation 〉=20%; Akv 〉=the 27J of (20 ℃).
The specific embodiment
Embodiment 1:
Low-alloy heat-resistant steel submerged arc welding wire of the present invention, its composition and mass percent are:
C 0.05～0.16，
Mn 0.40～1.00，
Si 0.05～0.35，
S ≤0.015，
P ≤0.015，
Cu ≤0.35，
Cr 0.70～1.60，
Ni ≤0.20，
Mo 0.40～0.80，
V ≤0.05，
Surplus is Fe.
Further, the preferable range of described Cr is 0.80～1.40%, and the preferable range of Mo is 0.45～0.65, and the preferable range of S, P is≤0.012%.
Each component of specific embodiment and composition see Table 1
The finished product chemical analysis (%) of table 1 embodiment welding wire
| Numbering | C | Si | Mn | Cu | Cr | Mo | S | P |
| 1 | 0.08 | 0.17 | 0.70 | 0.17 | 1.15 | 0.48 | 0.009 | 0.009 |
| 2 | 0.08 | 0.18 | 0.72 | 0.18 | 1.17 | 0.48 | 0.009 | 0.009 |
| 3 | 0.09 | 0.19 | 0.80 | 0.17 | 1.20 | 0.53 | 0.009 | 0.008 |
| 4 | 0.10 | 0.22 | 0.80 | 0.19 | 1.22 | 0.52 | 0.010 | 0.010 |
| 5 | 0.10 | 0.21 | 0.88 | 0.19 | 1.25 | 0.55 | 0.010 | 0.010 |
The mechanical property of table 2 embodiment welding wire deposited metal
Annotate: what deposited metal adopted is welding wire+SJ101 solder flux
Akv* is the impact numerical value mean value of five welding wire specimen tests;
Table 2 shows that when the welding wire of being implemented changed, the performance of deposited metal all can realize high strength, high-elongation in composition range of the present invention.
Low-alloy heat-resistant steel submerged arc welding wire of the present invention, the welding that is suitable for welding tensile strength 〉=550MPa level Cr-Mo series heat-resistant steel.Be mainly used in the structures such as station boiler, gas-turbine, high steam pipeline, petrochemical industry and nuclear power unit of operating temperature more than 550 ℃.
Welding wire of the present invention cooperates the SJ101 solder flux, has used and obtained effect preferably in station boiler equipment.
Embodiment 2:
Be divided into two groups in the laboratory through 10 welding 12CrMo steel test plate (panel)s, 5 batches every group, first group is used composition welding wire welding of the present invention, and second group is used background technology composition welding wire.First group of experimental result sees Table 2.Second group of experimental result sees Table 3.
Table 3 embodiment worker background technology welding wire deposited metal mechanical property
Can find out the embodiment welding wire from embodiment welding wire table 2 and background technology welding wire table 3 experimental result, tensile strength, yield strength, percentage elongation, Akv impact value are apparently higher than background technology welding wire deposited metal mechanical property.
Claims (4)
1, a kind of low-alloy heat-resistant steel submerged arc welding wire is characterized in that, the composition of described low-alloy heat-resistant steel submerged arc welding wire and mass percent are:
C 0.05～0.16，
Mn 0.40～1.00，
Si 0.05～0.35，
S ≤0.015，
P ≤0.015，
Cu ≤0.35，
Cr 0.70～1.60，
Ni ≤0.20，
Mo 0.40～0.80，
V ≤0.05，
Surplus is Fe.
2, low-alloy heat-resistant steel submerged arc welding wire according to claim 1 is characterized in that, the quality percentage composition of described Cr is 0.80～1.40.
3, low-alloy heat-resistant steel submerged arc welding wire according to claim 1 is characterized in that, the quality percentage composition of described Mo is 0.45～0.65.
4, low-alloy heat-resistant steel submerged arc welding wire according to claim 1 is characterized in that, the quality percentage composition of described S, P is≤0.012.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100465893A CN101407000A (en) | 2008-11-18 | 2008-11-18 | Low-alloy heat-resistant steel submerged arc welding wire |
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| CNA2008100465893A CN101407000A (en) | 2008-11-18 | 2008-11-18 | Low-alloy heat-resistant steel submerged arc welding wire |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179641A (en) * | 2011-04-06 | 2011-09-14 | 钢铁研究总院 | Submerged-arc welding wire for building cargo oil tank of oil tanker |
| CN102218622A (en) * | 2011-06-03 | 2011-10-19 | 甘肃省机械科学研究院 | High-manganese steel surfacing solid-core welding wire and manufacturing method thereof |
| CN102233492A (en) * | 2010-04-27 | 2011-11-09 | 昆山京群焊材科技有限公司 | Heat-resistant steel submerged arc welding wire and welding flux |
| CN103862192A (en) * | 2014-02-21 | 2014-06-18 | 宝山钢铁股份有限公司 | Wire rod for welding stick and welding stick |
| CN104607821A (en) * | 2014-12-09 | 2015-05-13 | 北京国电富通科技发展有限责任公司 | A387 Gr11 CL2 steel welding material and application method thereof |
| CN104745943A (en) * | 2015-03-25 | 2015-07-01 | 武汉钢铁(集团)公司 | Heat-resistance metal by melting and submerged arc deposition preparation method thereof |
| CN105081604A (en) * | 2015-05-26 | 2015-11-25 | 山东索力得焊材股份有限公司 | 700 MPa high-toughness and high-strength automatic submerged arc welding wire and use method |
| CN105108373A (en) * | 2015-06-09 | 2015-12-02 | 中广核工程有限公司 | Special welding rod for on-site welding main steam pipe in nuclear power station |
| CN106853561A (en) * | 2017-02-17 | 2017-06-16 | 上海海事大学 | A kind of polar region ship steel high-strength and high ductility welding wire for submerged-arc welding and its application method |
| CN107081538A (en) * | 2017-05-12 | 2017-08-22 | 天长市通联焊业有限公司 | A kind of high-strength corrosion-resisting welding wire |
| CN108213770A (en) * | 2017-12-25 | 2018-06-29 | 昆山京群焊材科技有限公司 | A kind of 650 DEG C of ultra supercritical coal-fired units metal powder core pattern heat-resistant steel submerged arc welding wire and solder flux |
| CN108637525A (en) * | 2018-05-17 | 2018-10-12 | 中国石油大学(华东) | A kind of Hi-Stren steel welding wire for submerged-arc welding for exempting from postwelding destressing processing |
| CN109175610A (en) * | 2018-10-11 | 2019-01-11 | 南京钢铁股份有限公司 | A kind of welding of gas shielded welding of thin plate welding method peculiar to vessel |
| CN110280925A (en) * | 2019-07-16 | 2019-09-27 | 南京钢铁股份有限公司 | A kind of welding wire for submerged-arc welding for high building structure refractory steel |
| CN110317998A (en) * | 2019-06-21 | 2019-10-11 | 河钢股份有限公司承德分公司 | A kind of low silicon welding wire for submerged-arc welding welding steel and its production method |
| CN112548397A (en) * | 2020-12-07 | 2021-03-26 | 四川西冶新材料股份有限公司 | Heat-resistant steel argon arc welding wire for gasification furnace and preparation method thereof |
-
2008
- 2008-11-18 CN CNA2008100465893A patent/CN101407000A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102233492A (en) * | 2010-04-27 | 2011-11-09 | 昆山京群焊材科技有限公司 | Heat-resistant steel submerged arc welding wire and welding flux |
| CN102233492B (en) * | 2010-04-27 | 2013-07-31 | 昆山京群焊材科技有限公司 | Heat-resistant steel submerged arc welding wire |
| CN102179641A (en) * | 2011-04-06 | 2011-09-14 | 钢铁研究总院 | Submerged-arc welding wire for building cargo oil tank of oil tanker |
| CN102218622A (en) * | 2011-06-03 | 2011-10-19 | 甘肃省机械科学研究院 | High-manganese steel surfacing solid-core welding wire and manufacturing method thereof |
| CN103862192B (en) * | 2014-02-21 | 2016-06-01 | 宝山钢铁股份有限公司 | A kind of welding wire wire rod and welding wire |
| CN103862192A (en) * | 2014-02-21 | 2014-06-18 | 宝山钢铁股份有限公司 | Wire rod for welding stick and welding stick |
| CN104607821B (en) * | 2014-12-09 | 2018-10-16 | 北京国电富通科技发展有限责任公司 | A387 Gr11 CL2 steel welding materials and its application method |
| CN104607821A (en) * | 2014-12-09 | 2015-05-13 | 北京国电富通科技发展有限责任公司 | A387 Gr11 CL2 steel welding material and application method thereof |
| CN104745943A (en) * | 2015-03-25 | 2015-07-01 | 武汉钢铁(集团)公司 | Heat-resistance metal by melting and submerged arc deposition preparation method thereof |
| CN105081604A (en) * | 2015-05-26 | 2015-11-25 | 山东索力得焊材股份有限公司 | 700 MPa high-toughness and high-strength automatic submerged arc welding wire and use method |
| CN105108373A (en) * | 2015-06-09 | 2015-12-02 | 中广核工程有限公司 | Special welding rod for on-site welding main steam pipe in nuclear power station |
| CN105108373B (en) * | 2015-06-09 | 2017-12-29 | 中广核工程有限公司 | Nuclear power station main steam line Site Welding welding rod special for special |
| CN106853561A (en) * | 2017-02-17 | 2017-06-16 | 上海海事大学 | A kind of polar region ship steel high-strength and high ductility welding wire for submerged-arc welding and its application method |
| CN107081538A (en) * | 2017-05-12 | 2017-08-22 | 天长市通联焊业有限公司 | A kind of high-strength corrosion-resisting welding wire |
| CN108213770A (en) * | 2017-12-25 | 2018-06-29 | 昆山京群焊材科技有限公司 | A kind of 650 DEG C of ultra supercritical coal-fired units metal powder core pattern heat-resistant steel submerged arc welding wire and solder flux |
| CN108637525A (en) * | 2018-05-17 | 2018-10-12 | 中国石油大学(华东) | A kind of Hi-Stren steel welding wire for submerged-arc welding for exempting from postwelding destressing processing |
| CN109175610A (en) * | 2018-10-11 | 2019-01-11 | 南京钢铁股份有限公司 | A kind of welding of gas shielded welding of thin plate welding method peculiar to vessel |
| CN110317998A (en) * | 2019-06-21 | 2019-10-11 | 河钢股份有限公司承德分公司 | A kind of low silicon welding wire for submerged-arc welding welding steel and its production method |
| CN110317998B (en) * | 2019-06-21 | 2021-05-25 | 河钢股份有限公司承德分公司 | Low-silicon submerged-arc welding wire welding steel and production method thereof |
| CN110280925A (en) * | 2019-07-16 | 2019-09-27 | 南京钢铁股份有限公司 | A kind of welding wire for submerged-arc welding for high building structure refractory steel |
| CN112548397A (en) * | 2020-12-07 | 2021-03-26 | 四川西冶新材料股份有限公司 | Heat-resistant steel argon arc welding wire for gasification furnace and preparation method thereof |
| CN112548397B (en) * | 2020-12-07 | 2021-12-07 | 四川西冶新材料股份有限公司 | Heat-resistant steel argon arc welding wire for gasification furnace and preparation method thereof |
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Open date: 20090415 |