CN101332547A - High-strength heat-resistant steel submerged arc welding wire - Google Patents
High-strength heat-resistant steel submerged arc welding wire Download PDFInfo
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- CN101332547A CN101332547A CNA2008100457204A CN200810045720A CN101332547A CN 101332547 A CN101332547 A CN 101332547A CN A2008100457204 A CNA2008100457204 A CN A2008100457204A CN 200810045720 A CN200810045720 A CN 200810045720A CN 101332547 A CN101332547 A CN 101332547A
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Abstract
The invention provides a high-intensity and heat-resisting steel submerged arc welding wire which comprises the following components and weight percentages: 0.10 - 0.16% of C, 0.60 - 1.10% of Mn, 0.30 - 0.60% of Si, not more than 0.025% of S, not more than 0.025% of P, not more than 0.35% of Cu, 1.10 - 1.85% of Cr, not more than 0.50% of Ni, 0.50 - 0.80% of Mo, and sufficient Fe. The high-intensity and heat-resisting steel submerged arc welding wire of the invention has simple design components, the obtained deposited metal and welding joint have good high-temperature and high-pressure resistance performance, and can reduce the occurrence of embrittlement resulted from long-time use under high temperature conditions and have good comprehensive properties particularly under high temperature working conditions; the high-intensity and heat-resisting steel submerged arc welding wire can ensure that the obtained deposited metal and welding joint have enough creep strength, endurance strength, persistent plasticity, good high-temperature structural stability and heat resistance and good obdurability, and good welding process property.
Description
Technical field
The invention belongs to field of welding material, particularly, relate to a kind of 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
The object of the present invention is to provide a kind of heat-resistant steel submerged arc welding wire, can solve the supporting welding wire for submerged-arc welding problem of nuclear electricity equipment with the heat resisting steel SA-387Gr11C12 of yield strength 470MPa.
The present invention addresses the above problem the technical scheme that is adopted: a kind of high-strength heat-resistant steel submerged arc welding wire, and its composition and mass percent are:
C 0.10～0.16％，
Mn 0.60～1.10％，
Si 0.30～0.60％，
S ≤0.025％，
P ≤0.025％，
Cu ≤0.35％，
Cr 1.10～1.85％，
Ni ≤0.50％，
Mo 0.50～0.80％，
Surplus is Fe.
Welding wire of the present invention adopts the heat-resisting system of Cr-Ni-Mo alloying element except C, Si, Mn, S, P.With respect to the complex component in the background technology, design mix of the present invention is simple and clear, has reduced the smelting difficulty, and cost is lower, and can solve and heat-resisting steel sheet and plate ASTMA387Gr11, Gr12 steel and similar steel grade (SA-387Gr11C12) etc. hear resistance such as tough such as strong.
Further, the preferable range of described Cr is 1.30～1.80%, and the preferable range of Ni is 0.30～0.50%, and the preferable range of S, P is≤0.020%.
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.
Adding Cr, Ni, Mo guarantee that deposited metal has better heat-resisting and high temperature microstructure stability, consider the matching with the mother metal composition simultaneously.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, Ni, and the Ni element is the highest in the chemical analysis of the various trade mark carbon constructional quality steels of GB699 standard code must not be greater than 0.25%, and Mo is a trace element wherein.
Its limit of working temperature of structural carbon steel is 350 ℃, the carbon steel strength character sharply descends along with the raising of operating temperature, its alloy series of high strength heat resistant steel of the present invention be Cr-Mo be Cr, Mo constituent content respectively up to 1.85% and 0.8%, its main alloying element is minimum especially must not be lower than 0.50% for the Mo element.Like this, contain higher Cr, Mo among the present invention, its operating ambient temperature of Ni 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.
To sum up, the invention has the beneficial effects as follows:
1, chemical composition design of the present invention is easy, directly reaches the high heat-resisting characteristic of high-strength and high ductility.
2, the present invention compared with prior art has following advantage:
A, welding wire gained deposited metal of the present invention and welding point have good high temperature resistant, high-voltage performance, have to reduce in the long-term use under the certain high temperature condition embrittlement phenomenon takes place, and have 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.
The combination property of b, welding wire gained deposited metal of the present invention is: yield strength 〉=470MPa, tensile strength 〉=550MPa, percentage elongation 〉=20%; Akv 〉=the 27J of (20 ℃ condition under).
The specific embodiment
Its composition of high-strength heat-resistant steel submerged arc welding wire of the present invention and mass percent are:
C 0.10～0.16％，
Mn 0.60～1.10％，
Si 0.30～0.60％，
S ≤0.025％，
P ≤0.025％，
Cu ≤0.35％，
Cr 1.10～1.85％，
Ni ≤0.50％，
Mo 0.50～0.80％，
Surplus is Fe.
Further, the preferable range of described Cr is 1.30～1.80%, and the preferable range of Ni is 0.30～0.50%, and the preferable range of S, P is≤0.020%.
The embodiment of the invention sees Table 1
The finished product chemical analysis (%) of table 1 embodiment welding wire
| Numbering | C | Si | Mn | Cu | Cr | Ni | Mo | S | P |
| 1 | 0.11 | 0.31 | 0.62 | 0.30 | 1.10 | 0.15 | 0.51 | 0.010 | 0.010 |
| 2 | 0.12 | 0.50 | 0.75 | 0.12 | 1.52 | 0.21 | 0.53 | 0.010 | 0.012 |
| 3 | 0.15 | 050 | 0.96 | 013 | 1.70 | 0.38 | 0.68 | 0.008 | 0.011 |
| 4 | 0.16 | 0.40 | 0.66 | 0.10 | 1.22 | 0.45 | 0.75 | 0.008 | 0.012 |
| 5 | 0.13 | 0.46 | 0.85 | 0.22 | 1.15 | 0.30 | 0.60 | 0.009 | 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
*Be 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.
High strength heat resistant steel welding wire for submerged-arc welding 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 power station, nuclear power unit boiler field of petrochemical industry.
Welding wire of the present invention cooperates the SJ101 solder flux, has used and obtained effect preferably in nuclear power plant equipment.
40 batches at nuclear power station need the SA-387Gr11C12 steel plate of welding to be divided into two groups, and 20 batches every group, first group is used component of weld wire welding of the present invention, and second group is used the welding of background technology component of weld wire.The result shows: second group SA-387Gr11C12 steel plate welding back is when operating temperature surpasses 350 ℃, and wherein unsettled situation appears in 19 batches steel plate, and the armor plate strength performance sharply descends along with the raising of operating temperature; First group of SA-387Gr11C12 steel plate welding back is when operating temperature is 550 ℃, and 20 batches of steel plates all can normally use, and have tangible heat resistance.
Claims (4)
1, a kind of high-strength heat-resistant steel submerged arc welding wire is characterized in that, its composition quality percentage is:
C 0.10～0.16％，
Mn 0.60～1.10％，
Si 0.30～0.60％，
S ≤0.025％，
P ≤0.025％，
Cu ≤0.35％，
Cr 1.10～1.85％，
Ni ≤0.50％，
Mo 0.50～0.80％，
Surplus is Fe.
2, the described high-strength heat-resistant steel submerged arc welding wire of claim 1 is characterized in that: the quality percentage composition of described Cr is 1.30～1.85%.
3, the described high-strength heat-resistant steel submerged arc welding wire of claim 1 is characterized in that: the quality percentage composition of described Ni is 0.30～0.50%.
4, the described high-strength heat-resistant steel submerged arc welding wire of claim 1 is characterized in that: the quality percentage composition of described S, P is≤0.020%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100457204A CN101332547A (en) | 2008-08-01 | 2008-08-01 | High-strength heat-resistant steel submerged arc welding wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100457204A CN101332547A (en) | 2008-08-01 | 2008-08-01 | High-strength heat-resistant steel submerged arc welding wire |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905392A (en) * | 2010-08-26 | 2010-12-08 | 宜昌猴王焊丝有限公司 | High-toughness low-alloy solid welding wire |
| CN101983827A (en) * | 2010-10-19 | 2011-03-09 | 成都新大洋焊接材料有限责任公司 | Alloy creep resistant heat resistant steel submerged arc welding stick |
| 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 |
| 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 |
| CN104785953A (en) * | 2015-04-16 | 2015-07-22 | 上海电力修造总厂有限公司 | Argon arc welding solid welding wire for high temperature steel plate |
| CN105880871A (en) * | 2016-05-26 | 2016-08-24 | 武汉铁锚焊接材料股份有限公司 | Gas-shielded high-toughness solid welding wire and use method and application thereof |
| 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 |
| CN108838580A (en) * | 2018-08-13 | 2018-11-20 | 天津沃盾耐磨材料有限公司 | High-temperature-resistant welding wire and preparation method thereof |
| CN109093286A (en) * | 2018-09-29 | 2018-12-28 | 四川西冶新材料股份有限公司 | A kind of 2.25Cr-1Mo steel exchange submerged arc welding welding wire and solder flux |
| 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
- 2008-08-01 CN CNA2008100457204A patent/CN101332547A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905392A (en) * | 2010-08-26 | 2010-12-08 | 宜昌猴王焊丝有限公司 | High-toughness low-alloy solid welding wire |
| CN101905392B (en) * | 2010-08-26 | 2012-04-25 | 宜昌猴王焊丝有限公司 | High-toughness low-alloy solid welding wire |
| CN101983827A (en) * | 2010-10-19 | 2011-03-09 | 成都新大洋焊接材料有限责任公司 | Alloy creep resistant heat resistant steel submerged arc welding stick |
| CN101983827B (en) * | 2010-10-19 | 2013-07-10 | 成都新大洋焊接材料有限责任公司 | Alloy creep resistant heat resistant steel submerged arc welding stick |
| 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 |
| 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 |
| 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 |
| 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 |
| CN104785953A (en) * | 2015-04-16 | 2015-07-22 | 上海电力修造总厂有限公司 | Argon arc welding solid welding wire for high temperature steel plate |
| CN105880871A (en) * | 2016-05-26 | 2016-08-24 | 武汉铁锚焊接材料股份有限公司 | Gas-shielded high-toughness solid welding wire and use method and application thereof |
| 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 |
| CN108838580A (en) * | 2018-08-13 | 2018-11-20 | 天津沃盾耐磨材料有限公司 | High-temperature-resistant welding wire and preparation method thereof |
| CN108838580B (en) * | 2018-08-13 | 2020-08-07 | 天津沃盾耐磨材料有限公司 | High-temperature-resistant welding wire and preparation method thereof |
| CN109093286A (en) * | 2018-09-29 | 2018-12-28 | 四川西冶新材料股份有限公司 | A kind of 2.25Cr-1Mo steel exchange submerged arc welding welding wire and solder flux |
| 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: 20081231 |