CN1273897A - High-toughness anticorrosion welding wire for submerged are welding of steel pipeline - Google Patents
High-toughness anticorrosion welding wire for submerged are welding of steel pipeline Download PDFInfo
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- CN1273897A CN1273897A CN 99112925 CN99112925A CN1273897A CN 1273897 A CN1273897 A CN 1273897A CN 99112925 CN99112925 CN 99112925 CN 99112925 A CN99112925 A CN 99112925A CN 1273897 A CN1273897 A CN 1273897A
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- steel pipeline
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Abstract
A high-toughness anti-corrosion welding wire for submerged arc welding of steel pipeline contains such chemical components (wt.%) as C (0.01-0.08), Mn (1.2-1.8), Si (0.05-0.5), Ti (0.03-0.15), B (0.001-0.008), Mo (0.2-0.55), Cu (0.2-0.5), Ni (0.03-0.5), S (less than 0.005), P (less than 0.01) and Fe (rest). The welded seam has higher strength and toughness. It is suitable for pipeline delivering natural gas containing hydrogen sulfide.
Description
The invention belongs to field of welding material, be mainly used in submerged-arc welding, welding petroleum, natural gas transmission pipeline steel.
Oil, natural gas are the material bases of social development, are the chief components of national economy.It is estimated, to next century main energy sources be natural gas, but China will reach 200,000,000 tons/year at the breach aspect oil, the natural gas, therefore except continuing to survey the oil gas field in control and exploitation east China and western part, also must be from the external input energy, set up from abroad to domestic feed-line and the transmission pipeline network of building oil, natural gas at home.Because feed-line often reaches thousands of kilometers, the region complexity in order to reduce the conveying cost, adopts the pipeline of high pressure, big throughput rate, big caliber to carry on the way.This has just proposed the requirement of high strength, high tenacity to tubing.Simultaneously, also require feed-line to have anti-H
2The ability of S corrosion.Consider that the submerged-arc welding method is the main technique of spiral welded pipe and ERW tubulation, therefore, the weld seam that welding wire that requirement is adopted and solder flux coupling are welded into also must have very high intensity, toughness and good anti-H
2The ability of S corrosion.At present, at the welding wire for submerged-arc welding of pipe line steel welding, domestic two patent CN1077152A and the CN1068528A of disclosing.Though the welding wire of CN1077152A invention has very high intensity and toughness,, be not suitable for the welding of natural gas transmission pipeline, and the low-temperature flexibility of CN1068528A is relatively low because carbon, manganese content are higher.
The object of the present invention is to provide a kind of pipe line steel anticorrosive welding wire for submerged-arc welding of high tenacity, weld metal therefrom not only has higher intensity and toughness, and can be suitable for the welding of sulfide hydrogen natural gas transmission pipeline.
The invention provides a kind of pipe line steel anticorrosive welding wire for submerged-arc welding of high tenacity, the chemical composition of welding wire (weight %) is:
C 0.01~0.08%, and Mn 1.20~1.80%, and Si 0.05~0.5%, and Ti 0.03~0.15%, and B 0.001~0.008%, and Mo 0.20~0.55%, and Ni 0.03~0.5%, and Cu 0.20~0.5%, S≤0.005%, and P≤0.01%, all the other are Fe.
Now chemical composition design considerations of the present invention is described below:
Adopt very low carbon content, reduced the hardness and the crackle Sensitivity Index of weld metal, improved the low-temperature flexibility of weld metal and the ability of anti-hydrogen crackle on the one hand, improved the ability of the hydrogen sulfide corrosion resistant of weld metal on the other hand.
S in the welding wire, P are harmful elements, when content is higher, can obviously reduce the toughness of weld metal and the ability of hydrogen sulfide corrosion resistant, so want strict its content of control.In the welding wire of the present invention, S, P are controlled to be (weight %): S≤0.005%, P≤0.01%.
Adding Mn, Mo element have improved the intensity of weld metal on the one hand by solution strengthening, Mn, Mo element have been postponed austenitic transition temperature on the other hand, suppressed the formation of pro-eutectoid ferrite and ferrite side plate, promote the formation of intracrystalline acicular ferrite, improved the low-temperature flexibility of weld metal.
Add microalloy element Ti, B.The affinity of Ti and oxygen is very big, forms TiO in weld seam, hinders on the one hand growing up of austenite crystal, refinement crystal grain, as the forming core particle of acicular ferrite, promoted the formation of acicular ferrite on the other hand.And the atomic radius of B is very little, and is very easily poly-partially to austenite grain boundary, reduced crystal boundary energy, the forming core that has suppressed pro-eutectoid ferrite with grow up, impel the generation acicular ferrite, improved the toughness of weld metal.Ti protects B not oxidized in weld seam.
Add minor N i, Cu and can stop hydrogen, reduced the sensitiveness of hydrogen being brought out crackle (HIC), improved anti-H to the weld metal internal penetration
2The ability of S corrosion.
Welding wire of the present invention compared with prior art has following advantage:
1. welding wire of the present invention and alkalescent sintered flux coupling, the gained weld metal has very high intensity and low-temperature impact toughness, and is especially better with high basicity solder flux matching performance;
2. not preheating before the wire welding of the present invention, postwelding is applicable to single or multiple lift without heat treatment, the welding process requirement of single face or multiaspect;
3. the deposited metal combination property that welding wire of the present invention welded: σ
a=510~590MPa, σ
b=580~670MPa is with the CVN of the weld metal of high basicity solder flux coupling
-10 ℃=160J.
Embodiment
The chemical composition scope of welding wire according to the present invention adopts vacuum induction furnace smelting, and casting routinely then is rolled into φ 8.0 wire rods, after the annealing draw becomes the welding wire of 3.2mm.Four kinds of welding wires are listed in table 1 with the chemical composition of the deposited metal of solder flux SJ101 and SJ102 coupling gained respectively, and the mechanical performance of deposited metal is listed in table 2.
The chemical composition of table 1 embodiment welding wire deposited metal
Solder flux | The welding wire numbering | ???C | ??Si | ??Mn | ??Mo | ??Ti | ????B | ??Ni | ??Cu | ???S | ???P |
SJ101 | ????E1 | ?0.056 | ?0.47 | ?1.59 | ?0.30 | ?0.006 | ?0.0016 | ?0.03 | ?0.24 | ?0.005 | ?0.0017 |
????E2 | ?0.057 | ?0.45 | ?1.53 | ?0.30 | ?0.005 | ?0.0016 | ?0.05 | ?0.37 | ?0.0048 | ?0.015 | |
????E3 | ?0.035 | ?0.37 | ?1.58 | ?0.29 | ?0.004 | ?0.0014 | ?0.25 | ?0.24 | ?0.006 | ?0.014 | |
????E4 | ?0.045 | ?0.40 | ?1.39 | ?0.29 | ?0.002 | ?0.0014 | ?0.41 | ?0.23 | ?0.006 | ?0.015 | |
SJ102 | ????E2 | ?0.048 | ?0.25 | ?1.84 | ?0.30 | ?0.009 | ?0.0010 | ?0.06 | ?0.37 | ?0.0040 | ?0.016 |
????E3 | ?0.025 | ?0.09 | ?1.85 | ?0.32 | ?0.009 | ?0.0012 | ?0.24 | ?0.27 | ?0.0047 | ?0.015 |
The mechanical performance of table 2 embodiment welding wire deposited metal
Solder flux | The welding wire numbering | ??σ a(MPa) | ??σ b(MPa) | δ(%) | ψ(%) | AKV -10℃(J) |
SJ101 | ????E1 | ????539 | ????615 | ??26 | ??73 | ????147 |
????E2 | ????547 | ????620 | ??24 | ??72 | ????153 | |
????E3 | ????536 | ????590 | ??24 | ??66 | ????132.2 | |
????E4 | ????506 | ????586 | ??24 | ??74 | ????134.4 | |
SJ102 | ????E2 | ????586 | ????668 | ??24 | ??71 | ????174.4 |
????E3 | ????524 | ????597 | ??23 | ??71 | ????169.6 |
Annotate: impact flexibility AKV is the mean value of five samples
Claims (2)
1. a pipe line steel is with the anticorrosive welding wire for submerged-arc welding of high tenacity, and it is characterized in that: its main chemical compositions (weight %) is
C 0.01~0.08%, and Mn 1.20~1.80%, and Si 0.05~0.5%, and Ti 0.03~0.15%, and B 0.001~0.008%, and Mo 0.20~0.55%, and Cu 0.20~0.5%, and Ni 0.03~0.5%, S≤0.005%, and P≤0.01%, all the other are Fe.
2. the application of the anticorrosive welding wire for submerged-arc welding of the described pipeline usefulness high tenacity of claim 1 is characterized in that: use with alkaline agglutinant coupling.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN99112925A CN1093025C (en) | 1999-05-14 | 1999-05-14 | High-toughness anticorrosion welding wire for submerged are welding of steel pipeline |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN99112925A CN1093025C (en) | 1999-05-14 | 1999-05-14 | High-toughness anticorrosion welding wire for submerged are welding of steel pipeline |
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Publication Number | Publication Date |
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CN1273897A true CN1273897A (en) | 2000-11-22 |
CN1093025C CN1093025C (en) | 2002-10-23 |
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CN99112925A Expired - Fee Related CN1093025C (en) | 1999-05-14 | 1999-05-14 | High-toughness anticorrosion welding wire for submerged are welding of steel pipeline |
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
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CN100430179C (en) * | 2004-07-12 | 2008-11-05 | 株式会社神户制钢所 | Solid wire for gas shield arc welding |
CN100441364C (en) * | 2006-09-13 | 2008-12-10 | 武汉钢铁(集团)公司 | High ductility buried arc welding wire for low-alloy super-strength steel |
CN100462185C (en) * | 2006-12-05 | 2009-02-18 | 金秋生 | Welding wire for gas shielded arc welding for high-tensile structural steel |
CN101664863A (en) * | 2009-09-24 | 2010-03-10 | 湖北猴王焊材有限公司 | Seawater corrosion resistant submerged arc welding wire |
CN1923433B (en) * | 2005-08-31 | 2010-10-13 | 宝山钢铁股份有限公司 | High-performance buried arc welding wire and wire rod, and method for manufacturing same |
CN101254575B (en) * | 2007-09-04 | 2011-12-28 | 中国石油集团渤海石油装备制造有限公司 | X80 pipeline steel submerged arc welding wire |
CN102601543A (en) * | 2012-04-09 | 2012-07-25 | 天津大桥焊丝有限公司 | Low-carbon submerged arc welding wire |
CN102041456B (en) * | 2009-10-21 | 2012-10-31 | 宝山钢铁股份有限公司 | Steel for wind power spindle and manufacturing method thereof |
CN104107988A (en) * | 2013-04-22 | 2014-10-22 | 湖北猴王焊材有限公司 | High-strength and high-toughness submerged arc welding wire for deep-sea pipeline welding |
CN106271212A (en) * | 2016-10-13 | 2017-01-04 | 北京科技大学 | A kind of low temperature high-strength and high ductility welding wire for submerged-arc welding and application process |
CN109664050A (en) * | 2019-02-27 | 2019-04-23 | 武汉钢铁有限公司 | A kind of welding wire for submerged-arc welding of the effective weld seam tensile strength >=650MPa of X80 fire bending |
CN111299900A (en) * | 2019-12-11 | 2020-06-19 | 天津市永昌焊丝有限公司 | Marine atmosphere corrosion resistant steel matched gas shielded welding wire rod, welding wire and application |
CN111299899A (en) * | 2019-12-11 | 2020-06-19 | 天津市永昌焊丝有限公司 | Marine atmosphere corrosion resistant steel matched gas shielded welding wire rod, welding wire and application |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61119394A (en) * | 1984-11-16 | 1986-06-06 | Sumitomo Metal Ind Ltd | Submerged arc welding material |
CN1025165C (en) * | 1992-07-14 | 1994-06-29 | 冶金工业部钢铁研究总院 | Low carbon micro alloyed submerged-arc welding wire |
CN1027353C (en) * | 1992-11-11 | 1995-01-11 | 宝鸡石油钢管厂 | High-toughness submerged-arc welding wire (of low carbon content, high manganese and silicon content and minute titanium and aluminuim content) |
CN1058923C (en) * | 1997-05-26 | 2000-11-29 | 武汉钢铁(集团)公司 | Low-alloy high-strength and high-toughness submerged-arc welding electrode |
-
1999
- 1999-05-14 CN CN99112925A patent/CN1093025C/en not_active Expired - Fee Related
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100430179C (en) * | 2004-07-12 | 2008-11-05 | 株式会社神户制钢所 | Solid wire for gas shield arc welding |
CN1923433B (en) * | 2005-08-31 | 2010-10-13 | 宝山钢铁股份有限公司 | High-performance buried arc welding wire and wire rod, and method for manufacturing same |
CN100441364C (en) * | 2006-09-13 | 2008-12-10 | 武汉钢铁(集团)公司 | High ductility buried arc welding wire for low-alloy super-strength steel |
CN100462185C (en) * | 2006-12-05 | 2009-02-18 | 金秋生 | Welding wire for gas shielded arc welding for high-tensile structural steel |
CN101254575B (en) * | 2007-09-04 | 2011-12-28 | 中国石油集团渤海石油装备制造有限公司 | X80 pipeline steel submerged arc welding wire |
CN101664863B (en) * | 2009-09-24 | 2013-03-20 | 湖北猴王焊材有限公司 | Seawater corrosion resistant submerged arc welding wire |
CN101664863A (en) * | 2009-09-24 | 2010-03-10 | 湖北猴王焊材有限公司 | Seawater corrosion resistant submerged arc welding wire |
CN102041456B (en) * | 2009-10-21 | 2012-10-31 | 宝山钢铁股份有限公司 | Steel for wind power spindle and manufacturing method thereof |
CN102601543A (en) * | 2012-04-09 | 2012-07-25 | 天津大桥焊丝有限公司 | Low-carbon submerged arc welding wire |
CN104107988A (en) * | 2013-04-22 | 2014-10-22 | 湖北猴王焊材有限公司 | High-strength and high-toughness submerged arc welding wire for deep-sea pipeline welding |
CN104107988B (en) * | 2013-04-22 | 2016-07-06 | 湖北猴王焊材有限公司 | Pipelines in deep sea welds with high tough welding wire for submerged-arc welding |
CN106271212A (en) * | 2016-10-13 | 2017-01-04 | 北京科技大学 | A kind of low temperature high-strength and high ductility welding wire for submerged-arc welding and application process |
CN109664050A (en) * | 2019-02-27 | 2019-04-23 | 武汉钢铁有限公司 | A kind of welding wire for submerged-arc welding of the effective weld seam tensile strength >=650MPa of X80 fire bending |
CN111299900A (en) * | 2019-12-11 | 2020-06-19 | 天津市永昌焊丝有限公司 | Marine atmosphere corrosion resistant steel matched gas shielded welding wire rod, welding wire and application |
CN111299899A (en) * | 2019-12-11 | 2020-06-19 | 天津市永昌焊丝有限公司 | Marine atmosphere corrosion resistant steel matched gas shielded welding wire rod, welding wire and application |
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