CN1093025C - 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
- Publication number
- CN1093025C CN1093025C CN99112925A CN99112925A CN1093025C CN 1093025 C CN1093025 C CN 1093025C CN 99112925 A CN99112925 A CN 99112925A CN 99112925 A CN99112925 A CN 99112925A CN 1093025 C CN1093025 C CN 1093025C
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- Prior art keywords
- welding
- welding wire
- toughness
- submerged
- present
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- 238000003466 welding Methods 0.000 title claims abstract description 41
- 229910000831 Steel Inorganic materials 0.000 title claims description 7
- 239000010959 steel Substances 0.000 title claims description 7
- 239000000126 substance Substances 0.000 claims abstract description 7
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 17
- 239000002184 metal Substances 0.000 abstract description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 14
- 239000003345 natural gas Substances 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 3
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 3
- 230000004907 flux Effects 0.000 description 7
- 229910000859 α-Fe Inorganic materials 0.000 description 7
- 229910000679 solder Inorganic materials 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000007771 core particle Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The present invention relates to a welding wire with high toughness and corrosion resistance for submerged arc weld. The present invention is characterized in that the welding wire has main chemical components (weight %) as following: 0.01 to 0.08% of C, 1.20 to 1.80% of Mn, 0.05 to 0.5% of Si, 0.03 to 0.15% of Ti, 0.001 to 0.008% of B, 0.20 to 0.55% of Mo, 0.20 to 0.5% of Cu, 0.03 to 0.5% of Ni, no more than 0.005% of S, no more than 0.01% of P and balancing Fe. Weld metal obtained from the present invention has high strength and toughness and is suitable for welding a natural gas transportation pipeline 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 day hot 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, contain heavyly when 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
The mechanical performance of table 2 embodiment welding wire deposited metal
Annotate: impact flexibility AKV is the mean value of five samples
| 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 | 0.006 | 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 |
| Solder flux | The welding wire numbering | σ a(MPa) | σ b(MPa) | δ(％) | ψ(％) | AKV -10℃(J) |
| SJ101 | E1 | 538 | 615 | 26 | 73 | 147 |
| E2 | 547 | 620 | 24 | 72 | 153 | |
| E3 | 536 | 580 | 24 | 66 | 132.2 | |
| E4 | 506 | 586 | 24 | 74 | 134.4 | |
| SJ102 | E2 | 586 | 668 | 24 | 71 | 174.4 |
| E3 | 524 | 587 | 23 | 71 | 168.6 |
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 0.2～0.5%, 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1273897A CN1273897A (en) | 2000-11-22 |
| CN1093025C true CN1093025C (en) | 2002-10-23 |
Family
ID=5276170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99112925A Expired - Fee Related CN1093025C (en) | 1999-05-14 | 1999-05-14 | High-toughness anticorrosion welding wire for submerged are welding of steel pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1093025C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4628027B2 (en) * | 2004-07-12 | 2011-02-09 | 株式会社神戸製鋼所 | Solid wire for gas shielded 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 |
| 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 |
| 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 |
| 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 |
| 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 |
Citations (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 |
| CN1068528A (en) * | 1992-07-14 | 1993-02-03 | 冶金工业部钢铁研究总院 | Low carbon micro alloyed submerged-arc welding wire |
| CN1077152A (en) * | 1992-11-11 | 1993-10-13 | 宝鸡石油钢管厂 | Low-carbon high-manganese, the little titanium of silicon, aluminium high-ductility submerged arc welding wire |
| CN1200317A (en) * | 1997-05-26 | 1998-12-02 | 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
Patent Citations (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 |
| CN1068528A (en) * | 1992-07-14 | 1993-02-03 | 冶金工业部钢铁研究总院 | Low carbon micro alloyed submerged-arc welding wire |
| CN1077152A (en) * | 1992-11-11 | 1993-10-13 | 宝鸡石油钢管厂 | Low-carbon high-manganese, the little titanium of silicon, aluminium high-ductility submerged arc welding wire |
| CN1200317A (en) * | 1997-05-26 | 1998-12-02 | 武汉钢铁(集团)公司 | Low-alloy high-strength and high-toughness submerged-arc welding electrode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1273897A (en) | 2000-11-22 |
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